Mobile 375 × 812

Desktop 1440 × 900

Score: 77 / 100
Based on 8 categories, 0 sections
Decent speed, but optimizing further could improve engagement.
Good foundation, but a few gaps could be exploited.
Several issues make your site difficult for assistive technology users.
Well-optimized for search — your content is discoverable.
Good server performance with room for optimization.
Strong compliance posture across regulations.
Rich content metadata — your pages look great everywhere.
Lean and efficient — low environmental impact per visit.
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.
17 link(s) with no accessible text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
6 button(s) with no accessible text
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
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/9b01094e-8f6d-4d9b-aca6-6f305ef12c17)<a href="https://beavercheck.com/results/9b01094e-8f6d-4d9b-aca6-6f305ef12c17"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Flulu.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Flulu.comThis badge auto-updates with your latest scan result.
Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.
6 barrier(s) likely increasing bounce by ~25%.
Page takes 15.1s to load
+12% bounceUsers abandon at ~3s — you're 12.6s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
Page feels frozen for 718ms
+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
17 link(s) with generic text ("click here", "read more")
+1% bounceScreen-reader users navigating by link list see no context — and search engines can't infer relevance
Fix: Rewrite with descriptive phrases that identify the destination
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.
€383 investment → €0.53/month returns + EUR 120,500,000 risk avoided
€383
4h · 5 findings
€0.53 /mo
~€6.35 / year
EUR 120,500,000
if kept compliant
€128 — 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.
4.5 developer hours at €85/hr
Based on European Union rates (€85/hr)
Start here for the best return on investment
€10,041,667 / month at risk
~€120,500,006 / year if left unfixed
€120,500,000
+6 more
€0.53 /mo
7139.4 MB/mo × 0.074 EUR/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 5 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.
7.62 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
15.11 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
718 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.000
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
8.92 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.
15.23 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 |
|---|---|---|
| img.youtube.com/vi/3LYsn03uyL8/maxresdefault.jpg | 7200.0 s | 63.4 KiB |
| assets.lulu.com/media/fonts/MuseoSans/woff2/MuseoSans_300.woff2 | 3600.0 s | 19.8 KiB |
| assets.lulu.com/media/fonts/MuseoSans/woff2/MuseoSans_500.woff2 | 3600.0 s | 19.7 KiB |
| assets.lulu.com/media/fonts/MuseoSans/woff2/MuseoSans_700.woff2 | 3600.0 s | 19.3 KiB |
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.
| URL | Est Savings |
|---|---|
| www.lulu.com/_next/static/media/icons.8cb6f880.woff2 | 50 ms |
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 | |
|---|---|---|---|
A variety of paperback and hardcover self published books authors have made on … div > section.MainBanner-module_mainBannerWrapper__QQZHx > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/5BznDPBoNfwTNzGOGNwH65/2afa6cb0ada5b1d1fad1... | 71.1 KiB | 60.2 KiB |
Video thumbnail div.NewElementCard-module_imageAndVideoWrapper__v5gBa > div.Video-module_videoContainer__Fbe0e > button.NakedButton-module_nakedButton__TWA3I > img | img.youtube.com/vi/3LYsn03uyL8/maxresdefault.jpg | 63.0 KiB | 59.7 KiB |
Testimonial image of Lulu Direct customer Katie Cross from Katie Cross Books div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/6eIZHqMZrwqjNVTzleiqSV/ed97b73a6b6b08a19502... | 39.6 KiB | 35.5 KiB |
Activate Good affiliate logo div.grid-12 > div.col-1 > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/fAxp6xfRpyErQevsyQwUS/583c6091556e8b299c289... | 30.6 KiB | 29.5 KiB |
Non-Fiction Authors Association affiliate logo div.grid-12 > div.col-1 > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/78CPjUuDlqTCrRN8eJK5Ch/8083a6d5d865ef0c49ce... | 20.2 KiB | 19.5 KiB |
Independent Book Publishers Association affiliate logo div.grid-12 > div.col-1 > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/GV5zGpRr0WlIXGBPXKQmY/c0f0b30223b5c1d295674... | 14.9 KiB | 14.4 KiB |
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.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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 |
|---|---|
| lulu.com/ | 760 ms |
| www.lulu.com/ | 0.0 ms |
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.
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.
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.lulu.com/_next/static/css/8891f4173d423714.css | 905.9 KiB | 900.5 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.lulu.com/_next/static/chunks/pages/_app-0a96cd61aa379a7b.js | 524.4 KiB | 187.7 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 | 861 ms | 33 ms | 0.0 ms |
| www.lulu.com/_next/static/chunks/framework-9c77ee99132d6bfd.js | 717 ms | 647 ms | 14 ms |
| www.lulu.com/_next/static/chunks/pages/_app-0a96cd61aa379a7b.js | 611 ms | 387 ms | 207 ms |
| www.lulu.com/ | 551 ms | 8.3 ms | 1.7 ms |
| www.lulu.com/_next/static/css/8891f4173d423714.css | 282 ms | 0.0 ms | 0.0 ms |
| www.lulu.com/_next/static/chunks/main-af44a5115117342d.js | 99 ms | 78 ms | 17 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 |
|---|---|
| Script Evaluation | 1.2 s |
| Other | 912 ms |
| Style & Layout | 499 ms |
| Parse HTML & CSS | 277 ms |
| Script Parsing & Compilation | 249 ms |
| Rendering | 42 ms |
| Garbage Collection | 16 ms |
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 | |
|---|---|
Video thumbnail div.NewElementCard-module_imageAndVideoWrapper__v5gBa > div.Video-module_videoContainer__Fbe0e > button.NakedButton-module_nakedButton__TWA3I > img | img.youtube.com/vi/3LYsn03uyL8/maxresdefault.jpg |
Self-publish a book with Lulu’s easy-to-use tools and global print-on-demand ne… div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/1cnaUlra2d6lNp0hecAksg/fb702f7d83dbf7972292... |
Integrate and sell on Shopify, WooCommerce, Wix, and the free book printing API div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/4PJUjNW2CwBzqvveO75w3/db1d2d6f67ac03dc77beb... |
Sell on Amazon, the Lulu Bookstore, and to over 40,000 retailers and schools th… div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/5nKtFXNczxeqlcyLQZPajp/1aa9112fdd4200dabc22... |
Integration for the free RESTful book print on demand API div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/2JKzcBsyqVQXpLGTQ84mJz/09946246c8bc01ec135c... |
Lulu Logo div.MainNavigation_left__KhEGS > div.MainNavigation_navigationItem__BF3AE > a.MainNavigation_logo__0BOee > img | /9htf9uzhsn4z/3tSSOSmHDmAKXuhUbZD27g/9f3a594a7c169dec01ae... |
Testimonial image of Lulu Direct customer Katie Cross from Katie Cross Books div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/6eIZHqMZrwqjNVTzleiqSV/ed97b73a6b6b08a19502... |
Testimonial image of Lulu API customer Marc Pittet of Mustachian Post div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/2p6aLt7PLeGFtMfp8eiYrt/5b0f7c18c8356c372a00... |
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 |
|---|
Authors & Creators div.NewElementCard-module_elementCard__OciVn > section.res-horizontal-padding-16 > div.RichTextContainer-module_richTextContainer__Hdr3- > h3.typo-brand-heading-h3 |
“Working with Lulu was a game-changer for my company! They integrate so smoothl… div.NewElementCard-module_elementCard__OciVn > section > div.RichTextContainer-module_richTextContainer__Hdr3- > h4.typo-brand-heading-h4 |
“Before switching to the Lulu API, I was spending 1–3 minutes per order manuall… div.NewElementCard-module_elementCard__OciVn > section > div.RichTextContainer-module_richTextContainer__Hdr3- > h4.typo-brand-heading-h4 |
These are opportunities to improve keyboard navigation in your application.
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 |
|---|
Authors & Creators
Publish, print, and sell professional-quality custom books … div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Entrepreneurs & Startups
Build your brand and monetize your audience with ecom… div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Businesses & Brands
API-enabled integrations for book printing and fulfillment… div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Enterprise Publishers
Scaling print and fulfillment solutions for direct-to-co… div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
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.
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.
1.65 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
3.05 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
113 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.335
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.65 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.
3.07 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 |
|---|---|---|
| img.youtube.com/vi/3LYsn03uyL8/maxresdefault.jpg | 7200.0 s | 63.4 KiB |
| assets.lulu.com/media/fonts/MuseoSans/woff2/MuseoSans_300.woff2 | 3600.0 s | 19.8 KiB |
| assets.lulu.com/media/fonts/MuseoSans/woff2/MuseoSans_500.woff2 | 3600.0 s | 19.7 KiB |
| assets.lulu.com/media/fonts/MuseoSans/woff2/MuseoSans_700.woff2 | 3600.0 s | 19.3 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.
| URL | Est Savings |
|---|---|
| www.lulu.com/_next/static/media/icons.8cb6f880.woff2 | 65 ms |
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 | |
|---|---|---|---|
Video thumbnail div.NewElementCard-module_imageAndVideoWrapper__v5gBa > div.Video-module_videoContainer__Fbe0e > button.NakedButton-module_nakedButton__TWA3I > img | img.youtube.com/vi/3LYsn03uyL8/maxresdefault.jpg | 63.0 KiB | 44.5 KiB |
Testimonial image of Lulu Direct customer Katie Cross from Katie Cross Books div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/2CmAj5qqvRskohxT1ZP6VQ/b1f8a7953a24ce8afdda... | 41.4 KiB | 36.2 KiB |
Activate Good affiliate logo div.grid-12 > div.col-1 > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/fAxp6xfRpyErQevsyQwUS/583c6091556e8b299c289... | 30.6 KiB | 29.7 KiB |
Testimonial image of Lulu API customer Marc Pittet of Mustachian Post div.NewElementCard-module_elementCard__OciVn > div.NewElementCard-module_imageAndVideoWrapper__v5gBa > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/8rgAP9aCOkF0Ds9T3ZQbr/fe76a7036669a2a2c8a3b... | 31.9 KiB | 27.8 KiB |
Non-Fiction Authors Association affiliate logo div.grid-12 > div.col-1 > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/78CPjUuDlqTCrRN8eJK5Ch/8083a6d5d865ef0c49ce... | 20.2 KiB | 19.7 KiB |
A variety of paperback and hardcover self published books authors have made on … div > section.MainBanner-module_mainBannerWrapper__QQZHx > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/2PtX9tp1DcPx4452zfwonm/f1ef9d0677c02bf423ca... | 55.6 KiB | 15.8 KiB |
Independent Book Publishers Association affiliate logo div.grid-12 > div.col-1 > picture > img.ImageWithMetadata-module_metadataImage__VCVHc | /9htf9uzhsn4z/GV5zGpRr0WlIXGBPXKQmY/c0f0b30223b5c1d295674... | 14.9 KiB | 14.5 KiB |
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.
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
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 |
|---|---|
| lulu.com/ | 216 ms |
| www.lulu.com/ | 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 |
|---|---|
Authors & Creators
Publish, print, and sell professional-quality custom books … div.full-height-container > main.fill-vertical-space > div > div.res-top-padding-32 | 0.333 |
API-enabled integrations for book printing and fulfillment through an on-demand… div.NewElementCard-module_elementCard__OciVn > section.res-horizontal-padding-16 > div.RichTextContainer-module_richTextContainer__Hdr3- > p.typo-brand-body-b2-regular | 0.002 |
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.
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.
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.lulu.com/_next/static/css/8891f4173d423714.css | 906.0 KiB | 901.9 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.lulu.com/_next/static/chunks/pages/_app-0a96cd61aa379a7b.js | 524.3 KiB | 187.9 KiB |
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 | |
|---|---|
Video thumbnail div.NewElementCard-module_imageAndVideoWrapper__v5gBa > div.Video-module_videoContainer__Fbe0e > button.NakedButton-module_nakedButton__TWA3I > img | img.youtube.com/vi/3LYsn03uyL8/maxresdefault.jpg |
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 |
|---|
Authors & Creators div.NewElementCard-module_elementCard__OciVn > section.res-horizontal-padding-16 > div.RichTextContainer-module_richTextContainer__Hdr3- > h3.typo-brand-heading-h3 |
“Working with Lulu was a game-changer for my company! They integrate so smoothl… div.NewElementCard-module_elementCard__OciVn > section > div.RichTextContainer-module_richTextContainer__Hdr3- > h4.typo-brand-heading-h4 |
“Before switching to the Lulu API, I was spending 1–3 minutes per order manuall… div.NewElementCard-module_elementCard__OciVn > section > div.RichTextContainer-module_richTextContainer__Hdr3- > h4.typo-brand-heading-h4 |
These are opportunities to improve keyboard navigation in your application.
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 |
|---|
Sell ul.MainNavigation_menuItems__cYNHu > li.NavItem_navItem__eBBgI > div.NavItem_title__z6S0z > a |
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 |
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Authors & Creators
Publish, print, and sell professional-quality custom books … div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Entrepreneurs & Startups
Build your brand and monetize your audience with ecom… div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Businesses & Brands
API-enabled integrations for book printing and fulfillment… div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Enterprise Publishers
Scaling print and fulfillment solutions for direct-to-co… div.Grid-module_wrapperWithBgColor__I5JS8 > div.grid-12 > div.col-3 > a.NewElementCard-module_asLink__cQJKF |
Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.
Performance issues directly impact user engagement and conversion rates.
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.
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