Netherlands · Amsterdam Completed: Apr 21, 2026 23:35 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 69 / 100
Based on 8 categories, 0 sections
Room to improve — your 103.0s load time is above Google's 2.5s 'Good' threshold.
Several missing protections leave your users and data exposed.
Several issues make your site difficult for assistive technology users.
Missing signals may be hurting your search visibility.
Solid infrastructure — fast server responses across the board.
Mostly compliant — a few items need attention.
Missing metadata means poor previews on social media and search.
Heavier than average — reducing page weight saves energy and bandwidth.
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
Security gaps expose your site and users to attacks, eroding trust.
HSTS header is missing
Security gaps expose your site and users to attacks, eroding trust.
No Content-Security-Policy header found
Security gaps expose your site and users to attacks, eroding trust.
Page weighs 36.1 MB (31.5 MB transferred)
Performance issues directly impact user engagement and conversion rates.
437 third-party resources (100% of weight)
Performance issues directly impact user engagement and conversion rates.
High impact, low effort — start here.
High impact, requires investment.
Small gains, minimal effort.
Nothing in this quadrant — good news.
Low impact, high effort — do last.
Nothing in this quadrant — good news.
[](https://beavercheck.com/results/f614e1b3-23c0-4b97-9d6f-3ae3af486f4d)<a href="https://beavercheck.com/results/f614e1b3-23c0-4b97-9d6f-3ae3af486f4d"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fbloomsbury.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fbloomsbury.comThis badge auto-updates with your latest scan result.
Your site has several issues that may be affecting user experience and business outcomes. Your LCP of 103.0s exceeds Google's 2.5s 'Good' threshold and the 2 performance issues below directly contribute to it. Addressing the critical issues below would have the most immediate impact on your user trust.
9 barrier(s) likely increasing bounce by ~33%.
Page takes 103.0s to load
+12% bounceUsers abandon at ~3s — you're 100.5s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
Page feels frozen for 3.0s
+5% bounceClicks on the primary CTA are ignored while JavaScript runs
Fix: Break up long tasks; defer non-critical JavaScript to post-hydration
No HSTS header
+1% bounceReturning visitors are briefly exposed to downgrade attacks on first request
Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains
No Content-Security-Policy header
+1% bounceHigher XSS blast radius — one compromised script can exfiltrate the checkout form
Fix: Ship a reporting-only CSP first, then enforce once violations are clean
Severe layout shift during page load
+6% bounceUsers mis-click when content jumps — converting intent into frustration
Fix: Reserve space for images, ads, and embeds with explicit width/height
No Open Graph tags
+2% bounceLinks shared on LinkedIn / Slack / Facebook show bare URLs — referral clicks drop
Fix: Add og:title, og:description, og:image, og:url to the page head
No structured data
+2% bounceNo rich-result eligibility in Google — lower SERP CTR vs competitors with stars and prices
Fix: Add JSON-LD for your page type (Product, Article, FAQPage, LocalBusiness, …)
Thin content
+3% bounceUnder 300 words — visitors bounce looking for substance, search engines rank competitors first
Fix: Add a substantive FAQ, product detail, or case-study section
No skip-to-content link
+1% bounceKeyboard and screen-reader users must tab through the entire header on every page
Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element
Preliminary CRO audit — each barrier links to the tab with detailed analysis.
£413 investment → £6.24/month returns + GBP 50,000 risk avoided
£413
6h · 5 findings
£6.24 /mo
~£75 / year
GBP 50,000
if kept compliant
£113 — in quick wins — start here for the fastest payback
Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.
5.5 developer hours at £75/hr
Based on United Kingdom rates (£75/hr)
Start here for the best return on investment
£4,173 / month at risk
~£50,075 / year if left unfixed
£50,000
£6.24 /mo
99049.6 MB/mo × 0.063 GBP/GB
Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 4 critical issues to capture this value
Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.
Your site's LCP: → estimated after fixes.
These are estimates based on industry research — actual results vary
Your data stays in your browser — nothing is sent to our servers
Thanks for your feedback!
We'll use a cached audit if available, or offer to scan.
Industry-standard audits powered by Google Lighthouse.
Key metrics that affect user experience.
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
4.30 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
103.05 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
2.99 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.760
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
13.12 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
109.51 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| cdn-ukwest.onetrust.com/scripttemplates/202509.1.0/otBannerSdk.js | 86400.0 s | 121.7 KiB |
| /js/sharethis.js | 600.0 s | 46.9 KiB |
| /cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/... | 14400.0 s | 13.0 KiB |
| /consent/7578151e-ad03-4950-b817-ac1f5e52aa60/otSDKStub.js | 86400.0 s | 11.4 KiB |
| /logos/44cfb464-4f22-49b4-9500-263dc4142f69/b1e00f47-2eee... | 86400.0 s | 10.1 KiB |
| buttons-config.sharethis.com/js/5d80a476ab6f1000123c90c8.js | 60.0 s | 1.3 KiB |
| cdn-ukwest.onetrust.com/logos/static/powered_by_logo.svg | 86400.0 s | 2.7 KiB |
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Performance issues directly impact user engagement and conversion rates.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
The Pretender
Shortlisted for the 2026 Walter Scott Prize for Historical Ficti… div.owl-stage-outer > ul.owl-stage > li.owl-item > div.home-hero | www.bloomsbury.com/media/arbclplp/pretender.jpg | 1.6 MiB | 990.0 KiB |
30% off Pocket Potters pre-orders and tote bags
PRE-ORDER NOW div.owl-stage-outer > ul.owl-stage > li.owl-item > div.home-hero | www.bloomsbury.com/media/5rsdxpaq/pocket-potters-group-homepage-banner.jpg | 1.0 MiB | 830.9 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png | 808.7 KiB | 773.9 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png | 808.7 KiB | 773.9 KiB |
Harry Potter and the Half-Blood Prince, Illustrated Edition
Receive an exclusi… div.owl-stage-outer > ul.owl-stage > li.owl-item > div.home-hero | www.bloomsbury.com/media/xcwjiteg/hp6-background.jpg | 845.2 KiB | 637.7 KiB |
Photo of Kate Bradbury next to One Garden Against the World and Wildlife Garden… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/w0ak0h4y/kate-bradbury-1236-x-699.jpg | 661.7 KiB | 521.1 KiB |
An aerial image of a forest featuring a house shaped lake div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/xkthvror/an-ariel-image-of-a-forest-with-a-house-s... | 363.5 KiB | 330.1 KiB |
Court of Thorns and Roses 6 book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/itybwu22/sarah-j-maas-acotar-books-6-and-7-resized.png | 335.1 KiB | 291.6 KiB |
Court of Thorns and Roses 6 book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/itybwu22/sarah-j-maas-acotar-books-6-and-7-resized.png | 335.1 KiB | 291.6 KiB |
Boudicca's Daughter book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/kv0j2frp/boudicaas-daughter-by-elodie-harper-paerb... | 225.1 KiB | 217.9 KiB |
div.content-tiles-item > a > div.card-image-container > div.card-image-inner div.content-tiles-item > a > div.card-image-container > div.card-image-inner | www.bloomsbury.com/media/sfalaeay/fy26_tb_marvel_aoc_blog_content_tile.jpg | 344.0 KiB | 210.2 KiB |
Author Tony Juniper leaning against a tree with his arms folded, credit: Jason … div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/dnnjqafa/tony-juniper-credit-jason-bye-content-tile.jpg | 237.9 KiB | 204.5 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/r4yhyryg/bookjacketasset-uk.png | 220.0 KiB | 199.3 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/r4yhyryg/bookjacketasset-uk.png | 220.0 KiB | 199.3 KiB |
div.content-tiles-item > a > div.card-image-container > div.card-image-inner div.content-tiles-item > a > div.card-image-container > div.card-image-inner | www.bloomsbury.com/media/dlbbuben/audiobook-assets_contenttile_2.jpg | 229.4 KiB | 196.0 KiB |
Don't Forget We're Here Forever book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/imthpnkt/dont-forget-were-here-forever-paperback-b... | 189.2 KiB | 181.9 KiB |
A Day of Fallen Night cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 183.6 KiB | 169.5 KiB |
Among the Burning Flowers cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 175.8 KiB | 161.7 KiB |
Case of Life and Limb book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/jorpit01/a-case-of-life-and-limb-by-sally-smith-pa... | 165.2 KiB | 157.9 KiB |
Vigil book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/luadtpob/george-saunders-vigil-book-jacket.jpg | 161.8 KiB | 154.4 KiB |
Walking Cure book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/545lzk2y/the-walking-cure-paperback-annabel-streets.jpg | 156.0 KiB | 148.7 KiB |
Electric Spark cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 162.5 KiB | 148.4 KiB |
Running on Air book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/ztujaleg/sophie-raworth-running-on-air-book-jacket.jpg | 155.7 KiB | 148.4 KiB |
div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/fd2jolnz/asparagus-and-potato-frittata-1374-for-bl... | 190.9 KiB | 143.7 KiB |
div.content-tiles-item > a > div.card-image-container > div.card-image-inner div.content-tiles-item > a > div.card-image-container > div.card-image-inner | www.bloomsbury.com/media/1f0fbjxt/katherine-rundell-books-tile.jpg | 176.9 KiB | 143.5 KiB |
The Dark Mirror cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 152.2 KiB | 138.2 KiB |
Elizabeth Gilbert's All the Way to the River, Anthony Bourdain's Kitchen Confid… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/pp5gysy1/best-non-fiction-audiobooks-for-your-dail... | 170.6 KiB | 137.2 KiB |
The Mime Order cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 147.0 KiB | 132.2 KiB |
The Mask Falling cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 146.5 KiB | 131.7 KiB |
Harry Potter and the Goblet of Fire cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 146.2 KiB | 131.5 KiB |
Wisden Cricketers' Almanack 2026 book jacket div.swiper-slide > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/5jxf2rll/wisden-cricketers-almanack-2026-book-jack... | 135.7 KiB | 128.5 KiB |
The Bone Season cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 141.9 KiB | 127.8 KiB |
The Last Starborn Seer cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 141.6 KiB | 127.5 KiB |
The Priory of the Orange Tree cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 141.5 KiB | 127.4 KiB |
The Big Journey, Hidden Treasure, Nature Spotter Minibeasts and 100 Ideas for P… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/y5roukgo/childrens-earth-day-tile-2026.jpg | 159.9 KiB | 126.5 KiB |
Hidden Treasure cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 136.4 KiB | 122.3 KiB |
The Song Rising cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 136.8 KiB | 122.0 KiB |
House of Earth and Blood cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 129.2 KiB | 115.1 KiB |
The Harry Potter Wizarding Almanac cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 124.5 KiB | 113.7 KiB |
The Library of Traumatic Memory cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 127.3 KiB | 113.1 KiB |
The Illuminated Man cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 126.6 KiB | 112.5 KiB |
One Garden Against the World, High Fibre Heroes, Just Earth and The Secret Worl… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/fcqanzkh/earth-day-2026-tile.jpg | 144.1 KiB | 110.6 KiB |
House of Sky and Breath cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 123.0 KiB | 109.0 KiB |
Pretender book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | /media/sjapydq4/the-pretender-by-jo-harkin-paperback-book... | 128.6 KiB | 108.0 KiB |
Pretender book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | /media/sjapydq4/the-pretender-by-jo-harkin-paperback-book... | 128.6 KiB | 108.0 KiB |
The Domesday Cows cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 121.3 KiB | 107.2 KiB |
The Graces cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 119.2 KiB | 105.1 KiB |
The Poisoned King cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 114.1 KiB | 99.2 KiB |
House of Flame and Shadow cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 112.4 KiB | 98.3 KiB |
Being Thomas Jefferson cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 106.0 KiB | 92.0 KiB |
Terrible True Tales: Second World War cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 105.6 KiB | 91.5 KiB |
Night Fire cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 105.5 KiB | 91.4 KiB |
Dog-Friendly Europe cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 103.1 KiB | 89.5 KiB |
Boudicca's Daughter cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 102.7 KiB | 88.5 KiB |
Don't Forget We're Here Forever cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 101.4 KiB | 87.3 KiB |
Remarkably Bright Creatures cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 99.3 KiB | 85.3 KiB |
Harry Potter and the Order of the Phoenix cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 94.1 KiB | 83.3 KiB |
The Three Lives of Cate Kay cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 96.6 KiB | 82.6 KiB |
Here Where We Live Is Our Country cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 96.4 KiB | 82.6 KiB |
The Complete Guide to the UK National Parks cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 95.2 KiB | 81.5 KiB |
Terrible True Tales: First World War cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 95.5 KiB | 81.4 KiB |
Let the Great World Spin cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 94.8 KiB | 80.7 KiB |
Dinner at Mine? cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 92.4 KiB | 80.6 KiB |
Kingdom of Ash cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 94.5 KiB | 80.5 KiB |
Walking Shadow cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 93.8 KiB | 79.7 KiB |
Tower of Dawn cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 93.4 KiB | 79.4 KiB |
Empire of Storms cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 93.3 KiB | 79.2 KiB |
Throne of Glass cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 92.5 KiB | 78.5 KiB |
See You on the Other Side cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 92.5 KiB | 78.4 KiB |
div.content-tiles-item > a > div.card-image-container > div.card-image-inner div.content-tiles-item > a > div.card-image-container > div.card-image-inner | www.bloomsbury.com/media/2vxnwt2r/series-reading-order-home.jpg | 104.9 KiB | 77.3 KiB |
into the wreck cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 91.5 KiB | 76.7 KiB |
Minority Rule cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 90.8 KiB | 76.7 KiB |
The Glass Heart cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 85.3 KiB | 76.1 KiB |
Heir of Fire cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 89.0 KiB | 74.9 KiB |
The Descent cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 88.9 KiB | 74.8 KiB |
Harry Potter and the Philosopher's Stone cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 87.9 KiB | 73.9 KiB |
The Picky Bits Sommelier cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 88.6 KiB | 73.9 KiB |
The Bunnies of Hoppity Hill: Colouring Fun cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 84.1 KiB | 73.7 KiB |
Relative Failures cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 87.4 KiB | 73.3 KiB |
The Swedish Cookbook cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 85.2 KiB | 73.3 KiB |
From the Films of Harry Potter: 100 Objects: The Most Iconic Props from the Mov… div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 82.2 KiB | 70.7 KiB |
Poppy Cooks: The Actually Delicious One Pot Cookbook cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 82.1 KiB | 70.2 KiB |
Bee Speaker cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 83.7 KiB | 69.5 KiB |
Our Beautiful Boys cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 83.4 KiB | 69.5 KiB |
Queen of Shadows cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 82.9 KiB | 68.9 KiB |
Murder Like Clockwork cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 81.4 KiB | 67.3 KiB |
We're Going on a Teddy Hunt cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 75.3 KiB | 66.2 KiB |
Starside cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 80.0 KiB | 65.9 KiB |
The Assassin's Blade cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 78.1 KiB | 64.0 KiB |
Running on Air cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 77.4 KiB | 63.3 KiB |
The Big Journey cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 72.8 KiB | 62.6 KiB |
Crown of Midnight cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 76.5 KiB | 62.4 KiB |
Luna Lovegood cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 73.7 KiB | 62.0 KiB |
Ron Weasley cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 73.6 KiB | 61.8 KiB |
Speech Sound Interventions cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 74.3 KiB | 61.4 KiB |
Professor Dumbledore cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 72.7 KiB | 61.0 KiB |
Someone Like Me cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 74.5 KiB | 60.3 KiB |
Paradox cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 74.2 KiB | 60.0 KiB |
Vigil cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 74.0 KiB | 59.9 KiB |
The Pretender cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 73.5 KiB | 59.4 KiB |
Hermione Granger cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 71.1 KiB | 59.3 KiB |
Harry Potter cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 70.9 KiB | 59.1 KiB |
Succeeding as a Deputy Head cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 72.8 KiB | 58.8 KiB |
A Case of Life and Limb cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 72.8 KiB | 58.7 KiB |
Athens and Sparta cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 72.2 KiB | 58.3 KiB |
Lateral Cooking cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 71.1 KiB | 57.4 KiB |
Dead Straight Line cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 70.7 KiB | 57.0 KiB |
The Sisterhood Rules cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 70.5 KiB | 56.9 KiB |
Pablo and Splash: The Castle Quest cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 66.0 KiB | 56.9 KiB |
Eagle Days cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 70.0 KiB | 56.5 KiB |
Plant Fuel cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 67.9 KiB | 56.0 KiB |
The Flaneur cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 69.1 KiB | 55.8 KiB |
My Family the Enemy cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 68.8 KiB | 55.5 KiB |
Positively Potty cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 68.4 KiB | 55.2 KiB |
A Cottage in the Country cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 67.9 KiB | 54.8 KiB |
50 Fantastic Ideas for Schematic Play cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 67.9 KiB | 54.8 KiB |
French Classics cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 66.1 KiB | 54.2 KiB |
Letters to a Young Writer cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 67.0 KiB | 54.1 KiB |
The BBQ Book cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 64.5 KiB | 52.7 KiB |
Broken Republik cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 64.8 KiB | 52.3 KiB |
The Wildelings cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 64.4 KiB | 52.0 KiB |
Theft cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 64.0 KiB | 51.7 KiB |
The Walking Cure cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 63.5 KiB | 51.3 KiB |
Fantastically Great Women Who Changed The World cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 60.4 KiB | 51.2 KiB |
Femme Feral cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 63.1 KiB | 50.9 KiB |
I Think We Should Kill Other People cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 62.6 KiB | 50.5 KiB |
The Family Quiz cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 60.1 KiB | 49.8 KiB |
The Strategic SENCo cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 60.9 KiB | 49.1 KiB |
Celebrate cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 60.8 KiB | 49.1 KiB |
We Made a Song (It Takes a Team) cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 58.3 KiB | 48.0 KiB |
Wisden Cricketers' Almanack 2026 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 59.3 KiB | 47.9 KiB |
Julie Chan is Dead cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 59.1 KiB | 47.7 KiB |
div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/rmsb542e/audiobooks-round-up-women-tile.png | 84.1 KiB | 47.7 KiB |
Moral Ambition cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 58.8 KiB | 47.5 KiB |
MEDesque cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 57.7 KiB | 46.6 KiB |
Why Populists Are Winning cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 55.6 KiB | 44.9 KiB |
Food You Want to Eat cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 55.5 KiB | 44.8 KiB |
How to Start cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 55.2 KiB | 44.5 KiB |
Joyful, Anyway cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 55.1 KiB | 44.5 KiB |
Luna Lovegood & Tote Bag cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 52.7 KiB | 43.5 KiB |
Harry Potter & Tote Bag cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 51.7 KiB | 42.5 KiB |
Harry Potter 1-3 Box Set: MinaLima Edition cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 52.3 KiB | 42.2 KiB |
Professor Dumbledore & Tote Bag cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 51.2 KiB | 42.1 KiB |
Unseen cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 50.6 KiB | 40.8 KiB |
Ron Weasley & Tote Bag cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 49.9 KiB | 40.8 KiB |
Hermione Granger & Tote Bag cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 48.5 KiB | 39.4 KiB |
A Court of Thorns and Roses 6 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 46.5 KiB | 37.6 KiB |
Dyslexia Unlocked cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 44.0 KiB | 35.5 KiB |
Just Earth cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 43.8 KiB | 35.4 KiB |
Harry Potter Box Set: The Complete Collection (Children’s Paperback) cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 42.3 KiB | 34.1 KiB |
A Court of Thorns and Roses 7 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 42.2 KiB | 34.1 KiB |
Where is Pierre? cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 41.7 KiB | 33.7 KiB |
The Daffodil Days cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 41.7 KiB | 33.6 KiB |
Harry Potter and the Half-Blood Prince, Illustrated Edition & Tote Bag cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 41.1 KiB | 33.2 KiB |
Padella cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 38.5 KiB | 31.0 KiB |
The French Skincare Bible cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 37.3 KiB | 30.1 KiB |
Harry Potter Gryffindor House Edition Paperback Box Set cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... | 33.4 KiB | 26.9 KiB |
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| /consent/7578151e-ad03-4950-b817-ac1f5e52aa60/otSDKStub.js | 11.4 KiB | 1.1 s |
| www.bloomsbury.com/scripts/recaptcha.js | 579 B | |
| www.bloomsbury.com/css/swiper-bundle.min.css | 4.0 KiB | 151 ms |
| fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap | 2.2 KiB | 757 ms |
| www.bloomsbury.com/css/html.min.css | 138.1 KiB | 2.0 s |
| www.bloomsbury.com/css/styles.css | 8.7 KiB | |
| cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css | 19.1 KiB | 1.4 s |
| stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css | 24.3 KiB | 1.4 s |
| stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css | 7.4 KiB | 937 ms |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| bloomsbury.com/ | 776 ms |
| www.bloomsbury.com/ | 1.0 s |
| www.bloomsbury.com/uk/ | 0.0 ms |
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| www.bloomsbury.com/uk/ | 615 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Everyone's talking about...
A cracking read
Jojo Moyes
Running on Air
Sophie … body.bg-white > main#main-content > section.hub-slider > div.hub-slider--container | 0.760 |
nav.bbtag-ga-mobile > div.bbtag-ga-mobile > div > a.bbtag-ga-mobile nav.bbtag-ga-mobile > div.bbtag-ga-mobile > div > a.bbtag-ga-mobile | 0.001 |
Everyone's talking about... section.hub-slider > div.hub-slider--container > div.hub-slider--header > h2.heading-3 | 0.000 |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /scripts/site-c.js?v=mvfgYq7QeQn7ijmZ0L2_4F2SInsJ-m-I3sJT... | 26.0 KiB | 11.7 KiB |
| /scripts/vendor/mcustomscrollbar/mCustomScrollbar.js?v=Bx... | 29.0 KiB | 11.3 KiB |
| /scripts/vendor/owl/owl.carousel.js?v=exV4rmKBB-UjoShIKkp... | 28.4 KiB | 11.2 KiB |
| platform-api.sharethis.com/js/sharethis.js | 6.9 KiB | 2.0 KiB |
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.bloomsbury.com/css/html.min.css | 137.8 KiB | 127.2 KiB |
| stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css | 23.8 KiB | 22.6 KiB |
| 21.7 KiB | 19.1 KiB | |
| cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css | 18.4 KiB | 18.3 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 361.8 KiB | 186.3 KiB |
| /scripts/vendor/masked-input/jquery.inputmask.min.js?v=LY... | 38.0 KiB | 34.6 KiB |
| /scripts/vendor/swiper/swiper-bundle.min.js?v=yGbYnBLt8Xn... | 56.2 KiB | 34.5 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-NQKV755 | 74.0 KiB | 29.2 KiB |
| /scripts/vendor/mcustomscrollbar/mCustomScrollbar.js?v=Bx... | 29.0 KiB | 21.5 KiB |
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| Unattributable | 4.4 s | 164 ms | 0.0 ms |
| www.bloomsbury.com/uk/ | 4.3 s | 116 ms | 12 ms |
| code.jquery.com/jquery-3.6.4.min.js | 2.2 s | 1.6 s | 22 ms |
| /scripts/vendor/swiper/swiper-bundle.min.js?v=yGbYnBLt8Xn... | 1.0 s | 332 ms | 31 ms |
| www.googletagmanager.com/gtag/js?id=G-HS160T99XT&cx=c>m=4e64h1 | 545 ms | 455 ms | 62 ms |
| www.googletagmanager.com/gtm.js?id=GTM-NQKV755 | 511 ms | 392 ms | 75 ms |
| cdn-ukwest.onetrust.com/scripttemplates/202509.1.0/otBannerSdk.js | 438 ms | 267 ms | 79 ms |
| www.bloomsbury.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 422 ms | 410 ms | 4.6 ms |
| www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 398 ms | 207 ms | 139 ms |
| platform-api.sharethis.com/js/sharethis.js | 181 ms | 141 ms | 32 ms |
| /consent/7578151e-ad03-4950-b817-ac1f5e52aa60/otSDKStub.js | 65 ms | 45 ms | 5.4 ms |
| /scripts/vendor/mcustomscrollbar/mCustomScrollbar.js?v=Bx... | 61 ms | 27 ms | 33 ms |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Other | 4.8 s |
| Script Evaluation | 4.4 s |
| Style & Layout | 3.4 s |
| Rendering | 985 ms |
| Script Parsing & Compilation | 669 ms |
| Parse HTML & CSS | 666 ms |
| Garbage Collection | 109 ms |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Pages with cache-control:no-store header cannot enter back/forward cache. | Actionable |
| Pages whose main resource has cache-control:no-store cannot enter back/forward cache. | Not actionable |
| Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header. | Not actionable |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.bloomsbury.com/css/styles.css | 8.7 KiB | 2.2 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png |
The Mime Order cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Song Rising cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Mask Falling cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Poisoned King cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Harry Potter and the Goblet of Fire cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Joyful, Anyway cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Why Populists Are Winning cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
A Court of Thorns and Roses 6 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
A Court of Thorns and Roses 7 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Elementary Science Methods: An Assets-Based Approach to Teaching, Learning, and… div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
into the wreck cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Public Relations in Times of Dissensus cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Picky Bits Sommelier cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Lateral Cooking cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Rhetorics of Fairness and the Politics of Trans Exclusion cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Tasting Religious Thought and Experience in Late-Medieval English Literature co… div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Unseen cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Paradox cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Boudicca's Daughter cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Library of Traumatic Memory cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Wisden Cricketers' Almanack 2026 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Bee Speaker cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Don't Forget We're Here Forever cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Someone Like Me cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Priory of the Orange Tree cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Daffodil Days cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Pretender cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
A Day of Fallen Night cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Sisterhood Rules cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Vigil cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Night Fire cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
See You on the Other Side cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Starside cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Running on Air cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Walking Shadow cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Illuminated Man cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Relative Failures cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Athens and Sparta cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Descent cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Theft cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Minority Rule cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Starside cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Among the Burning Flowers cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Femme Feral cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Last Starborn Seer cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Murder Like Clockwork cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
A Case of Life and Limb cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Last Starborn Seer cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
House of Flame and Shadow cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
A Cottage in the Country cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Let the Great World Spin cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
I Think We Should Kill Other People cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Remarkably Bright Creatures cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Walking Cure cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Electric Spark cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Eagle Days cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
The Flaneur cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
Letters to a Young Writer cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_360,c_scale,dpr_1.5/jack... |
More information about the performance of your application. These numbers don't directly affect the Performance score.
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Jojo Moyes div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--quotation > h5 |
Sophie Raworth div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
Sally Smith div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
Lawrence Booth div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
Annabel Streets div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
Elodie Harper div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
Lamorna Ash div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
George Saunders div.hub-slider--carousel_item-content > div.hs-content > div.hs-content--title > h5 |
div.modal-dialog > div.modal-content > div.modal-body > h5 div.modal-dialog > div.modal-content > div.modal-body > h5 |
These are opportunities to improve keyboard navigation in your application.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Privacy Policy div.modal-body--content > form#signUpForm > p.fs-smallest > a |
These are opportunities to improve the legibility of your content.
Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
nav.bbtag-ga-mobile > div.bbtag-ga-mobile > div > a.bbtag-ga-mobile nav.bbtag-ga-mobile > div.bbtag-ga-mobile > div > a.bbtag-ga-mobile |
nav.bbtag-ga-mobile > div.bbtag-ga-mobile > div.bbtag-ga-mobile > a#mobileHeaderSearchOpen nav.bbtag-ga-mobile > div.bbtag-ga-mobile > div.bbtag-ga-mobile > a#mobileHeaderSearchOpen |
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Slide 4 div.home-hero--container > div.custom-dots--wrapper > div.custom-dots > button.owl-dot |
Slide 5 div.home-hero--container > div.custom-dots--wrapper > div.custom-dots > button.owl-dot |
These items highlight common accessibility best practices.
Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
About Us div > ul > li > a |
Bloomsbury Professional div > ul > li > a |
Cookie Policy div > ul > li > a |
Current Opportunities div > ul > li > a |
Environmental Policy div > ul > li > a |
Modern Slavery Statement div > ul > li > a |
Osprey Publishing div > ul > li > a |
Privacy Policy div > ul > li > a |
Terms & Conditions div > ul > li > a |
Customer Service div > ul > li > a |
Contact Us div > ul > li > a |
Returns & Cancellations div > ul > li > a |
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge |
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| cookiepedia.co.uk/giving-consent-to-cookies | More information |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
United Kingdom li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
Canada li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
Australia li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
United States li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
India li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.
Performance issues directly impact user engagement and conversion rates.
| Line # | Content | Error |
|---|---|---|
| 38 | Allow: .js | Pattern should either be empty, start with "/" or "*" |
| 39 | Allow: .css | Pattern should either be empty, start with "/" or "*" |
To appear in search results, crawlers need access to your app.
Industry-standard audits powered by Google Lighthouse. — Desktop
Key metrics that affect user experience. — Desktop
First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.
1.20 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
18.98 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
553 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.402
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.55 s
Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.
20.24 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
Performance issues directly impact user engagement and conversion rates.
Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
Performance issues directly impact user engagement and conversion rates.
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.
Performance issues directly impact user engagement and conversion rates.
| Request | Cache TTL | Transfer Size |
|---|---|---|
| cdn-ukwest.onetrust.com/scripttemplates/202509.1.0/otBannerSdk.js | 86400.0 s | 121.7 KiB |
| /js/sharethis.js | 600.0 s | 46.9 KiB |
| /cdn-cgi/challenge-platform/h/b/scripts/jsd/0b8fb825cb67/... | 14400.0 s | 12.1 KiB |
| /consent/7578151e-ad03-4950-b817-ac1f5e52aa60/otSDKStub.js | 86400.0 s | 11.4 KiB |
| /logos/44cfb464-4f22-49b4-9500-263dc4142f69/b1e00f47-2eee... | 86400.0 s | 10.3 KiB |
| buttons-config.sharethis.com/js/5d80a476ab6f1000123c90c8.js | 60.0 s | 1.3 KiB |
| cdn-ukwest.onetrust.com/logos/static/powered_by_logo.svg | 86400.0 s | 2.5 KiB |
Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
Performance issues directly impact user engagement and conversion rates.
Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.
Performance issues directly impact user engagement and conversion rates.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
The Pretender
Shortlisted for the 2026 Walter Scott Prize for Historical Ficti… div.owl-stage-outer > ul.owl-stage > li.owl-item > div.home-hero | www.bloomsbury.com/media/arbclplp/pretender.jpg | 1.6 MiB | 990.0 KiB |
30% off Pocket Potters pre-orders and tote bags
PRE-ORDER NOW div.owl-stage-outer > ul.owl-stage > li.owl-item > div.home-hero | www.bloomsbury.com/media/5rsdxpaq/pocket-potters-group-homepage-banner.jpg | 1.0 MiB | 830.9 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png | 808.7 KiB | 758.7 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png | 808.7 KiB | 758.7 KiB |
Harry Potter and the Half-Blood Prince, Illustrated Edition
Receive an exclusi… div.owl-stage-outer > ul.owl-stage > li.owl-item > div.home-hero | www.bloomsbury.com/media/xcwjiteg/hp6-background.jpg | 845.2 KiB | 637.7 KiB |
Photo of Kate Bradbury next to One Garden Against the World and Wildlife Garden… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/w0ak0h4y/kate-bradbury-1236-x-699.jpg | 661.7 KiB | 521.1 KiB |
Photo of Kate Bradbury next to One Garden Against the World and Wildlife Garden… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/w0ak0h4y/kate-bradbury-1236-x-699.jpg | 661.7 KiB | 521.1 KiB |
An aerial image of a forest featuring a house shaped lake div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/xkthvror/an-ariel-image-of-a-forest-with-a-house-s... | 363.5 KiB | 330.1 KiB |
An aerial image of a forest featuring a house shaped lake div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/xkthvror/an-ariel-image-of-a-forest-with-a-house-s... | 363.5 KiB | 330.1 KiB |
Court of Thorns and Roses 6 book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/itybwu22/sarah-j-maas-acotar-books-6-and-7-resized.png | 335.1 KiB | 295.2 KiB |
Court of Thorns and Roses 6 book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/itybwu22/sarah-j-maas-acotar-books-6-and-7-resized.png | 335.1 KiB | 295.2 KiB |
div.content-tiles-item > a > div.card-image-container > div.card-image-inner div.content-tiles-item > a > div.card-image-container > div.card-image-inner | www.bloomsbury.com/media/sfalaeay/fy26_tb_marvel_aoc_blog_content_tile.jpg | 344.0 KiB | 210.2 KiB |
Boudicca's Daughter by Elodie Harper paperback. div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/kv0j2frp/boudicaas-daughter-by-elodie-harper-paerb... | 225.1 KiB | 209.7 KiB |
Boudicca's Daughter by Elodie Harper paperback. div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/kv0j2frp/boudicaas-daughter-by-elodie-harper-paerb... | 225.1 KiB | 209.7 KiB |
Author Tony Juniper leaning against a tree with his arms folded, credit: Jason … div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/dnnjqafa/tony-juniper-credit-jason-bye-content-tile.jpg | 237.9 KiB | 204.5 KiB |
Author Tony Juniper leaning against a tree with his arms folded, credit: Jason … div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/dnnjqafa/tony-juniper-credit-jason-bye-content-tile.jpg | 237.9 KiB | 204.5 KiB |
div.content-tiles-item > a > div.card-image-container > div.card-image-inner div.content-tiles-item > a > div.card-image-container > div.card-image-inner | www.bloomsbury.com/media/dlbbuben/audiobook-assets_contenttile_2.jpg | 229.4 KiB | 196.0 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/r4yhyryg/bookjacketasset-uk.png | 220.0 KiB | 189.5 KiB |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/r4yhyryg/bookjacketasset-uk.png | 220.0 KiB | 189.5 KiB |
Yellow book jacket with red text for Don't Forget We're Here Forever by Lamorna… div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/imthpnkt/dont-forget-were-here-forever-paperback-b... | 189.2 KiB | 173.7 KiB |
Yellow book jacket with red text for Don't Forget We're Here Forever by Lamorna… div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/imthpnkt/dont-forget-were-here-forever-paperback-b... | 189.2 KiB | 173.7 KiB |
A Case of Life and Limb paperback book jacket. div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/jorpit01/a-case-of-life-and-limb-by-sally-smith-pa... | 165.2 KiB | 149.6 KiB |
A Case of Life and Limb paperback book jacket. div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/jorpit01/a-case-of-life-and-limb-by-sally-smith-pa... | 165.2 KiB | 149.6 KiB |
George Saunder's Vigil book jacket div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/luadtpob/george-saunders-vigil-book-jacket.jpg | 161.8 KiB | 146.1 KiB |
George Saunder's Vigil book jacket div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/luadtpob/george-saunders-vigil-book-jacket.jpg | 161.8 KiB | 146.1 KiB |
div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/fd2jolnz/asparagus-and-potato-frittata-1374-for-bl... | 190.9 KiB | 143.7 KiB |
div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/fd2jolnz/asparagus-and-potato-frittata-1374-for-bl... | 190.9 KiB | 143.7 KiB |
The Walking Cure paperback book jacket div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/545lzk2y/the-walking-cure-paperback-annabel-streets.jpg | 156.0 KiB | 140.4 KiB |
The Walking Cure paperback book jacket div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/545lzk2y/the-walking-cure-paperback-annabel-streets.jpg | 156.0 KiB | 140.4 KiB |
Sophie Raworth Running on Air book jacket. div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/ztujaleg/sophie-raworth-running-on-air-book-jacket.jpg | 155.7 KiB | 140.1 KiB |
Sophie Raworth Running on Air book jacket. div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | www.bloomsbury.com/media/ztujaleg/sophie-raworth-running-on-air-book-jacket.jpg | 155.7 KiB | 140.1 KiB |
Elizabeth Gilbert's All the Way to the River, Anthony Bourdain's Kitchen Confid… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/pp5gysy1/best-non-fiction-audiobooks-for-your-dail... | 170.6 KiB | 137.2 KiB |
Elizabeth Gilbert's All the Way to the River, Anthony Bourdain's Kitchen Confid… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | /media/pp5gysy1/best-non-fiction-audiobooks-for-your-dail... | 170.6 KiB | 137.2 KiB |
The Big Journey, Hidden Treasure, Nature Spotter Minibeasts and 100 Ideas for P… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/y5roukgo/childrens-earth-day-tile-2026.jpg | 159.9 KiB | 126.5 KiB |
The Big Journey, Hidden Treasure, Nature Spotter Minibeasts and 100 Ideas for P… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/y5roukgo/childrens-earth-day-tile-2026.jpg | 159.9 KiB | 126.5 KiB |
Wisden Cricketers' Almanack 2026 book jacket div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/5jxf2rll/wisden-cricketers-almanack-2026-book-jack... | 135.7 KiB | 120.3 KiB |
Wisden Cricketers' Almanack 2026 book jacket div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker > img.img-fluid | /media/5jxf2rll/wisden-cricketers-almanack-2026-book-jack... | 135.7 KiB | 120.3 KiB |
One Garden Against the World, High Fibre Heroes, Just Earth and The Secret Worl… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/fcqanzkh/earth-day-2026-tile.jpg | 144.1 KiB | 110.6 KiB |
One Garden Against the World, High Fibre Heroes, Just Earth and The Secret Worl… div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/fcqanzkh/earth-day-2026-tile.jpg | 144.1 KiB | 110.6 KiB |
Pretender book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | /media/sjapydq4/the-pretender-by-jo-harkin-paperback-book... | 128.6 KiB | 107.2 KiB |
Pretender book jacket div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | /media/sjapydq4/the-pretender-by-jo-harkin-paperback-book... | 128.6 KiB | 107.2 KiB |
div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/rmsb542e/audiobooks-round-up-women-tile.png | 84.1 KiB | 47.7 KiB |
div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img div.product-detail-article__item > a > div.card__image--container > div.card__image--container-img | www.bloomsbury.com/media/rmsb542e/audiobooks-round-up-women-tile.png | 84.1 KiB | 47.7 KiB |
The Last Starborn Seer cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 31.8 KiB | 26.7 KiB |
Boudicca's Daughter cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 28.4 KiB | 23.4 KiB |
Remarkably Bright Creatures cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 26.7 KiB | 21.6 KiB |
The Three Lives of Cate Kay cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 26.5 KiB | 21.3 KiB |
Bee Speaker cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 25.2 KiB | 20.1 KiB |
The Illuminated Man cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 24.6 KiB | 19.5 KiB |
Relative Failures cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 24.4 KiB | 19.3 KiB |
The Descent cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 24.0 KiB | 18.9 KiB |
Running on Air cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 23.9 KiB | 18.8 KiB |
Being Thomas Jefferson cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 23.7 KiB | 18.5 KiB |
Athens and Sparta cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 23.5 KiB | 18.4 KiB |
The Sisterhood Rules cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 23.4 KiB | 18.3 KiB |
Here Where We Live Is Our Country cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 23.5 KiB | 18.3 KiB |
Murder Like Clockwork cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 23.0 KiB | 17.9 KiB |
A Case of Life and Limb cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 22.4 KiB | 17.2 KiB |
Our Beautiful Boys cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 22.3 KiB | 17.1 KiB |
Night Fire cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 22.1 KiB | 17.0 KiB |
See You on the Other Side cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 22.0 KiB | 16.9 KiB |
into the wreck cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 21.6 KiB | 16.7 KiB |
The Pretender cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 21.7 KiB | 16.6 KiB |
Paradox cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 21.6 KiB | 16.6 KiB |
I Think We Should Kill Other People cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 21.6 KiB | 16.4 KiB |
Vigil cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 21.3 KiB | 16.2 KiB |
Starside cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 21.2 KiB | 16.1 KiB |
Julie Chan is Dead cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 20.2 KiB | 15.0 KiB |
Let the Great World Spin cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 19.9 KiB | 14.7 KiB |
Theft cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 19.2 KiB | 14.1 KiB |
How to Start cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 19.2 KiB | 14.0 KiB |
Why Populists Are Winning cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 18.5 KiB | 13.6 KiB |
A Cottage in the Country cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 18.5 KiB | 13.4 KiB |
Joyful, Anyway cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 18.1 KiB | 13.2 KiB |
The Wildelings cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 18.1 KiB | 13.0 KiB |
Unseen cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 17.7 KiB | 12.7 KiB |
Wisden Cricketers' Almanack 2026 cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 17.7 KiB | 12.6 KiB |
Femme Feral cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 17.3 KiB | 12.2 KiB |
Walking Shadow cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 15.9 KiB | 10.8 KiB |
The Daffodil Days cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 14.0 KiB | 8.9 KiB |
The French Skincare Bible cover div.product-listing-item > div.product-listing-item__image > a > img | /bloomsbury-atlas/image/upload/w_148,c_scale,dpr_1.5/jack... | 13.3 KiB | 8.1 KiB |
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.
Performance issues directly impact user engagement and conversion rates.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| /consent/7578151e-ad03-4950-b817-ac1f5e52aa60/otSDKStub.js | 11.4 KiB | 272 ms |
| www.bloomsbury.com/scripts/recaptcha.js | 579 B | |
| fonts.googleapis.com/css?family=Open+Sans:400,600,700&display=swap | 2.2 KiB | 207 ms |
| stackpath.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css | 7.3 KiB | 260 ms |
| stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css | 24.3 KiB | 356 ms |
| www.bloomsbury.com/css/swiper-bundle.min.css | 4.0 KiB | |
| cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css | 19.1 KiB | 477 ms |
| www.bloomsbury.com/css/html.min.css | 138.1 KiB | 450 ms |
| www.bloomsbury.com/css/styles.css | 8.7 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| bloomsbury.com/ | 226 ms |
| www.bloomsbury.com/ | 393 ms |
| www.bloomsbury.com/uk/ | 0.0 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Harry Potter and the Half-Blood Prince, Illustrated Edition
Receive an exclusi… body.bg-white > main#main-content > section > div.home-hero--container | 0.402 |
Sophie Raworth Running on Air book jacket. li.owl-item > div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker | 0.016 |
A Case of Life and Limb paperback book jacket. li.owl-item > div.hub-slider--carousel_item > div.hub-slider--carousel_item-image > a.featured-product-link-marker | 0.006 |
BOOKS
AUTHORS
DISCOVER
CONNECT nav.main-navigation > div#navbarSupportedContent > div.d-flex > ul#desktopMainNavigation | 0.000 |
The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.
Performance issues directly impact user engagement and conversion rates.
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| /scripts/site-c.js?v=mvfgYq7QeQn7ijmZ0L2_4F2SInsJ-m-I3sJT... | 26.0 KiB | 11.7 KiB |
| /scripts/vendor/mcustomscrollbar/mCustomScrollbar.js?v=Bx... | 29.0 KiB | 11.3 KiB |
| /scripts/vendor/owl/owl.carousel.js?v=exV4rmKBB-UjoShIKkp... | 28.4 KiB | 11.2 KiB |
| platform-api.sharethis.com/js/sharethis.js | 6.9 KiB | 2.0 KiB |
Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.bloomsbury.com/css/html.min.css | 137.8 KiB | 127.0 KiB |
| stackpath.bootstrapcdn.com/bootstrap/4.3.1/css/bootstrap.min.css | 23.8 KiB | 22.1 KiB |
| 21.7 KiB | 19.3 KiB | |
| cdnjs.cloudflare.com/ajax/libs/font-awesome/6.5.1/css/all.min.css | 18.4 KiB | 18.3 KiB |
Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 361.8 KiB | 161.9 KiB |
| www.googletagmanager.com/gtag/js?id=G-HS160T99XT&cx=c>m=4e64h1 | 150.5 KiB | 59.5 KiB |
| /scripts/vendor/masked-input/jquery.inputmask.min.js?v=LY... | 38.0 KiB | 34.6 KiB |
| /scripts/vendor/swiper/swiper-bundle.min.js?v=yGbYnBLt8Xn... | 56.2 KiB | 34.4 KiB |
| /scripts/vendor/mcustomscrollbar/mCustomScrollbar.js?v=Bx... | 29.0 KiB | 21.5 KiB |
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| Unattributable | 1.2 s | 38 ms | 0.0 ms |
| code.jquery.com/jquery-3.6.4.min.js | 1.1 s | 612 ms | 9.5 ms |
| www.bloomsbury.com/uk/ | 886 ms | 25 ms | 2.4 ms |
| /scripts/vendor/swiper/swiper-bundle.min.js?v=yGbYnBLt8Xn... | 184 ms | 122 ms | 5.6 ms |
| www.googletagmanager.com/gtag/js?id=G-HS160T99XT&cx=c>m=4e64h1 | 151 ms | 122 ms | 20 ms |
| cdn-ukwest.onetrust.com/scripttemplates/202509.1.0/otBannerSdk.js | 131 ms | 66 ms | 19 ms |
| www.googletagmanager.com/gtm.js?id=GTM-NQKV755 | 124 ms | 105 ms | 18 ms |
| www.bloomsbury.com/cdn-cgi/challenge-platform/scripts/jsd/main.js | 106 ms | 102 ms | 1.1 ms |
| www.gstatic.com/recaptcha/releases/gTpTIWhbKpxADzTzkcabhXN4/recaptcha__en.js | 83 ms | 47 ms | 36 ms |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Other | 1.3 s |
| Script Evaluation | 1.3 s |
| Style & Layout | 926 ms |
| Parse HTML & CSS | 228 ms |
| Script Parsing & Compilation | 157 ms |
| Rendering | 118 ms |
| Garbage Collection | 36 ms |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| Pages with cache-control:no-store header cannot enter back/forward cache. | Actionable |
| Pages whose main resource has cache-control:no-store cannot enter back/forward cache. | Not actionable |
| Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header. | Not actionable |
Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.bloomsbury.com/css/styles.css | 8.7 KiB | 2.2 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png |
div.home-hero--content > div.home-hero-image > a.hero-link-marker > img div.home-hero--content > div.home-hero-image > a.hero-link-marker > img | www.bloomsbury.com/media/f2zdbxas/hp6-illustrated-edition-and-tote-bag.png |
More information about the performance of your application. These numbers don't directly affect the Performance score.
These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.
When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot div.hub-slider--container > div.hub-slider--carousel-home > div.owl-dots > button.owl-dot |
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Country:
UK li.header-links > ul.list-unstyled > li.header-dropdown > a#navbarDropdownTerritories |
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Privacy Policy div.modal-body--content > form#signUpForm > p.fs-smallest > a |
These are opportunities to improve the legibility of your content.
Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
div.modal-dialog > div.modal-content > div.modal-body > h5 div.modal-dialog > div.modal-content > div.modal-body > h5 |
These are opportunities to improve keyboard navigation in your application.
Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Profile
Shopping Cart (0 item)
0
Country:
UK div.headerSectionRight > div.row > div.col-6 > li.header-links |
These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Slide 4 div.home-hero--container > div.custom-dots--wrapper > div.custom-dots > button.owl-dot |
Slide 5 div.home-hero--container > div.custom-dots--wrapper > div.custom-dots > button.owl-dot |
These items highlight common accessibility best practices.
Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Richard Strachan div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sam Beckbessinger div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jay McInerney div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Susannah Dickey div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Douglas Preston div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Aletheia Preston div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Kathy Lette div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sophie Raworth div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Marine Vincent div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Amy Noble div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Lawrence Booth div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Greg Doran div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jodi Kantor div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jodi Kantor div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Christopher Priest div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Nina Allan div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sally Smith div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Elodie Harper div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jo Harkin div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Colum McCann div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sameer Pandya div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Kate Fagan div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Annabel Streets div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Frances Wilson div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Lamorna Ash div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Victoria Taylor div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Natalie Brooks div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Natalie Brooks div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Chris Reiter div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Will Wilkes div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Georgina Hayden div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Niki Segnit div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Yotam Ottolenghi div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Niklas Ekstedt div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Kate Young div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jeffrey Boadi div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Poppy O'Toole div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sarah J. Maas div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sarah J. Maas div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Alex Aster div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Neil Jordan div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Venetia Constantine div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Samantha Shannon div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
J.K. Rowling div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Levi Pinfold div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
J.K. Rowling div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Natalie Smillie div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
J.K. Rowling div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Olia Muza div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
J.K. Rowling div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Laura Proietti div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
J.K. Rowling div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Paola Escobar div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
J.K. Rowling div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Helen Brady div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Martha Mumford div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Cherie Zamazing div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jessie Burton div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sally Gardner div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Robert Tregoning div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Yasmeen Ismail div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Emma Clarke div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Doro Globus div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Rose Blake div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Hollie Taylor div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Sebastian Humphreys div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Iszi Lawrence div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Rebecca Mottram div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Topsy Page div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Alan Howe div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Laura England div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Adam Kohlbeck div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Chris Passey div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Liz Spooner div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Jacqui Woodcock div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Alex Michael Trew div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Rowan Williams div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Michèle V. Cloonan div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Daniel V. Flanagan Jr. div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
John R. Vile div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Nathalie Nya div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
Raphaël Girard div.product-listing-item > div.product-listing-item__info > div.product-listing-item__info--author > a |
About Us div > ul > li > a |
Bloomsbury Professional div > ul > li > a |
Cookie Policy div > ul > li > a |
Current Opportunities div > ul > li > a |
Environmental Policy div > ul > li > a |
Modern Slavery Statement div > ul > li > a |
Osprey Publishing div > ul > li > a |
Privacy Policy div > ul > li > a |
Terms & Conditions div > ul > li > a |
Customer Service div > ul > li > a |
Contact Us div > ul > li > a |
Returns & Cancellations div > ul > li > a |
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge |
These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link Text |
|---|---|
| cookiepedia.co.uk/giving-consent-to-cookies | More information |
Format your HTML in a way that enables crawlers to better understand your app’s content.
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
United Kingdom li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
Canada li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
Australia li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
United States li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
India li.header-dropdown > div.dropdown-menu > div.dropdown-body > a.dropdown-item |
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.
Performance issues directly impact user engagement and conversion rates.
| Line # | Content | Error |
|---|---|---|
| 38 | Allow: .js | Pattern should either be empty, start with "/" or "*" |
| 39 | Allow: .css | Pattern should either be empty, start with "/" or "*" |
To appear in search results, crawlers need access to your app.
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