C — https://uk.com | BeaverCheck Audit

Site Health

Score: 75 / 100

Based on 8 categories, 0 sections

Decent speed, but optimizing further could improve engagement.

Several missing protections leave your users and data exposed.

Several issues make your site difficult for assistive technology users.

Well-optimized for search — your content is discoverable.

Solid infrastructure — fast server responses across the board.

Strong compliance posture across regulations.

Rich content metadata — your pages look great everywhere.

Reasonable footprint with room for optimization.

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

How the composite score is calculated

How you compare

Google Search Console sites average 73

At average

Better than 64% of Google Search Console sites See full Google Search Console benchmark →

jQuery sites average 73

At average

Better than 62% of jQuery sites See full jQuery benchmark →

Top Priorities (5)

Content-Security-Policy header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

HSTS header is missing

Security gaps expose your site and users to attacks, eroding trust.

Security › Security Headers

No Content-Security-Policy header found

Security gaps expose your site and users to attacks, eroding trust.

Security › Content Security Policy

1 control(s) without accessible label

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Form Accessibility

1 link(s) with no accessible text

Accessibility issues exclude users with disabilities — up to 15% of your potential audience.

Accessibility › Link & Button Quality

View fix priority matrix

Fix Priority Matrix

5 findings

Impact

Quick Wins

High impact, low effort — start here.

Strategic

High impact, requires investment.

Easy Improvements

Small gains, minimal effort.

Nothing in this quadrant — good news.

Deprioritize

Low impact, high effort — do last.

Nothing in this quadrant — good news.

← Low effort High effort →

Embed this badge

Markdown

[![BeaverCheck](https://beavercheck.com/badge?url=https%3A%2F%2Fuk.com)](https://beavercheck.com/results/d3058144-7e33-419f-b579-e899932a3b19)

HTML

<a href="https://beavercheck.com/results/d3058144-7e33-419f-b579-e899932a3b19"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fuk.com" alt="BeaverCheck Score"></a>

Image URL

https://beavercheck.com/badge?url=https%3A%2F%2Fuk.com

This badge auto-updates with your latest scan result.

What fixing these means

Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Addressing the critical issues below would have the most immediate impact on your user trust.

3 security gaps detected — browsers may warn visitors about your site.

2 accessibility issues exclude users who rely on assistive technology.

Conversion Barriers

7 warning

7 barrier(s) likely increasing bounce by ~19%.

Speed (1)

Page loads in 2.9s

+5% bounce

Every additional 100ms above 2.5s costs conversions — you're 428ms over

Fix: Target <2.5s LCP: defer non-critical scripts and optimize the hero image

Trust (2)

No HSTS header

+1% bounce

Returning 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% bounce

Higher XSS blast radius — one compromised script can exfiltrate the checkout form

Fix: Ship a reporting-only CSP first, then enforce once violations are clean

Usability (1)

1 form field(s) without a label

+2% bounce

Screen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes

Fix: Associate every input with a visible <label for="…">; add autocomplete attributes

Content (2)

No structured data

+2% bounce

No 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, …)

Content is hard to read

+2% bounce

Graduate-level reading difficulty — limits the addressable audience for product or blog pages

Fix: Shorten sentences; replace jargon with plain language; target Flesch ease ≥60

Navigation (1)

No skip-to-content link

+1% bounce

Keyboard 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.

Return on Investment

€383 investment → €660/month returns + EUR 120,500,000 risk avoided

Payback period: < 1 month First-year ROI: +1970%

Investment

€383

4h · 5 findings

Monthly returns

€660 /mo

~€7,916 / year

Conversions recovered €659
Bandwidth savings €0.83

Regulatory risk avoided

EUR 120,500,000

if kept compliant

ePrivacy Directive EUR 100,000,000
GDPR EUR 20,000,000
EAA EUR 500,000

Payback period

0 12mo 24mo

€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.

Full methodology & sources

Estimated Remediation Cost

€383

4.5 developer hours at €85/hr

Based on European Union rates (€85/hr)

Quick wins

€128 3 fixes in ~90 minutes

Start here for the best return on investment

Cost by category

Cost by effort level

Adjust assumptions

Custom rate

€ /hr

Rates reflect fully-loaded developer cost including overhead

How developer rates are sourced

What Inaction Is Costing You

€10,041,668 / month at risk

~€120,500,010 / year if left unfixed

Compliance Risk

€120,500,000

ePrivacy DirectiveGDPREAA

No privacy policy link detected
GDPR: EUR 10,000 – EUR 20,000,000
Trackers detected but no cookie policy found
GDPR: EUR 5,000 – EUR 10,000,000
Trackers detected but no cookie policy found
GDPR: EUR 10,000 – EUR 20,000,000

+7 more

Bandwidth Waste

€0.83 /mo

11251.8 MB/mo × 0.074 EUR/GB

Optimize transfer: save ~1.1 MB per page load
Saves €0.83/mo

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.

Compliance methodology · SEO assumptions · Bandwidth model

Your performance is already good — improvements may show diminishing returns

Monthly visitors

Unique monthly visitors from your analytics

Conversion rate (%)

Purchases, signups, or key actions

Avg. order value

Optional — for revenue estimation

additional conversions/month

more engaged visitors from reduced bounce

potential monthly revenue

Current bounce (est.)

After fixes (est.)

Estimated bounce reduction

Fix 5 critical issues to capture this value

How this is calculated

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

Bounce-rate model & assumptions

Your data stays in your browser — nothing is sent to our servers

Was this report useful?

Thanks for your feedback!

We'll use a cached audit if available, or offer to scan.

Checking for existing audit...

Press ? for shortcuts

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

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.

2.64 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

2.93 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

76 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.069

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

4.24 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.

9.75 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

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

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
uk.com/assets/img/sites/kimchee_uk_com.jpg	0.0 ms	295.3 KiB
uk.com/assets/img/sites/parklife_uk_com.jpg	0.0 ms	291.7 KiB
uk.com/assets/img/table-desktop-ukcom.png?v=2	0.0 ms	198.5 KiB
uk.com/assets/img/sites/spectre_uk_com.jpg	0.0 ms	189.3 KiB
uk.com/assets/img/sites/mirrormirror_uk_com.jpg	0.0 ms	154.8 KiB
uk.com/assets/img/table-mobile-ukcom.png?v=2	0.0 ms	150.0 KiB
uk.com/assets/img/sites/theflorist_uk_com.jpg	0.0 ms	148.3 KiB
uk.com/assets/img/sites/russells_uk_com.jpg	0.0 ms	144.4 KiB
uk.com/assets/img/sites/motif_uk_com.jpg	0.0 ms	141.0 KiB
uk.com/assets/img/sites/logs_uk_com.jpg	0.0 ms	135.0 KiB
uk.com/assets/img/sites/bbf_uk_com.jpg	0.0 ms	113.9 KiB
uk.com/assets/img/sites/mitchells_uk_com.jpg	0.0 ms	113.5 KiB
uk.com/assets/img/sites/lifecentre_uk_com.jpg	0.0 ms	108.5 KiB
uk.com/assets/img/sites/wards_uk_com.jpg	0.0 ms	105.6 KiB
uk.com/assets/img/sites/abma_uk_com.jpg	0.0 ms	102.4 KiB
uk.com/assets/img/sites/plinth_uk_com.jpg	0.0 ms	98.0 KiB
uk.com/assets/img/sites/bonkers_uk_com.jpg	0.0 ms	90.7 KiB
uk.com/assets/js/lib/jquery-3.5.1.min.js	0.0 ms	87.6 KiB
uk.com/assets/img/sites/lucywalters_uk_com.jpg	0.0 ms	87.6 KiB
uk.com/assets/img/sites/avon_uk_com.jpg	0.0 ms	76.8 KiB
uk.com/assets/img/sites/thetintinshop_uk_com.jpg	0.0 ms	74.8 KiB
uk.com/assets/img/sites/circulon_uk_com.jpg	0.0 ms	74.7 KiB
uk.com/assets/img/sites/yourleisure_uk_com.jpg	0.0 ms	71.5 KiB
uk.com/assets/img/sites/osmo_uk_com.jpg	0.0 ms	53.0 KiB
uk.com/assets/css/style.css?v=1.1.6	0.0 ms	51.7 KiB
uk.com/assets/css/bootstrap-grid.min.css	0.0 ms	50.5 KiB
uk.com/assets/img/logos/ukcom-primary.png	0.0 ms	32.5 KiB
uk.com/assets/js/lib/underscore.min.js?v=1.0.1	0.0 ms	16.3 KiB
uk.com/assets/js/search.js?v=1.1.0	0.0 ms	16.2 KiB
uk.com/assets/js/lib/modernizr.min.js?v=1.0	0.0 ms	12.7 KiB
uk.com/assets/img/logos/ukcom-primary.svg	0.0 ms	10.8 KiB
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2	0.0 ms	9.8 KiB
uk.com/assets/js/home.js?v=1.0.1	0.0 ms	9.8 KiB
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2	0.0 ms	9.7 KiB
uk.com/assets/img/icons/icon-ukcom-uk-market.svg	0.0 ms	9.3 KiB
uk.com/assets/img/icons/icon-ukcom-unrestricted.svg	0.0 ms	7.3 KiB
uk.com/assets/img/icons/icon-ukcom-seo.svg	0.0 ms	6.1 KiB
uk.com/assets/img/icons/icon-ukcom-premium.svg	0.0 ms	5.6 KiB
uk.com/assets/js/main.js?v=1.0.1	0.0 ms	5.1 KiB
uk.com/assets/img/icons/icon-ukcom-seamless.svg	0.0 ms	4.5 KiB
uk.com/assets/img/logos/ukcom-small.svg	0.0 ms	3.4 KiB
uk.com/assets/img/icons/oversized-icon-ukcom.svg	0.0 ms	3.2 KiB
uk.com/assets/img/icons/loader.svg	0.0 ms	3.0 KiB
uk.com/assets/img/icons/ukcom-mag-glass-location.svg	0.0 ms	2.3 KiB
uk.com/assets/img/icons/baseline-open_in_new-24px.svg	0.0 ms	795 B

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
kimchee.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/kimchee_uk_com.jpg	295.0 KiB	289.5 KiB
parklife.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/parklife_uk_com.jpg	291.5 KiB	286.0 KiB
spectre.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/spectre_uk_com.jpg	189.1 KiB	183.6 KiB
mirrormirror.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/mirrormirror_uk_com.jpg	154.5 KiB	149.0 KiB
theflorist.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/theflorist_uk_com.jpg	148.1 KiB	142.5 KiB
russells.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/russells_uk_com.jpg	144.1 KiB	138.6 KiB
motif.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/motif_uk_com.jpg	140.8 KiB	135.4 KiB
logs.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/logs_uk_com.jpg	134.8 KiB	129.6 KiB
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`	uk.com/assets/img/table-mobile-ukcom.png?v=2	149.8 KiB	118.5 KiB
bbf.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/bbf_uk_com.jpg	113.7 KiB	109.4 KiB
mitchells.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/mitchells_uk_com.jpg	113.2 KiB	108.9 KiB
lifecentre.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/lifecentre_uk_com.jpg	108.3 KiB	104.2 KiB
wards.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/wards_uk_com.jpg	105.4 KiB	101.3 KiB
abma.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/abma_uk_com.jpg	102.2 KiB	98.2 KiB
plinth.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/plinth_uk_com.jpg	97.7 KiB	94.0 KiB
bonkers.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/bonkers_uk_com.jpg	90.5 KiB	87.0 KiB
lucywalters.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/lucywalters_uk_com.jpg	87.3 KiB	84.0 KiB
avon.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/avon_uk_com.jpg	76.6 KiB	73.7 KiB
thetintinshop.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/thetintinshop_uk_com.jpg	74.6 KiB	71.7 KiB
circulon.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/circulon_uk_com.jpg	74.4 KiB	71.6 KiB
yourleisure.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/yourleisure_uk_com.jpg	71.3 KiB	68.6 KiB
osmo.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/osmo_uk_com.jpg	52.8 KiB	50.8 KiB
.UK.COM `div.container > div.home-hero > div#search > img.home-logo`	uk.com/assets/img/logos/ukcom-primary.png	32.3 KiB	27.9 KiB

Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-22-IMG

nodeLabel: .UK.COM

path: 6,HTML,2,BODY,4,MAIN,0,SECTION,0,DIV,0,DIV,0,DIV,0,IMG

selector: div.container > div.home-hero > div#search > img.home-logo

snippet: <img src="/assets/img/logos/ukcom-primary.png" onerror="this.src='';this.onerror=null;" alt=".UK.COM" itemprop="logo" class="home-logo">

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
uk.com/	http/1.1
uk.com/assets/css/bootstrap-grid.min.css	http/1.1
uk.com/assets/css/style.css?v=1.1.6	http/1.1
uk.com/assets/js/lib/modernizr.min.js?v=1.0	http/1.1
uk.com/assets/img/logos/ukcom-small.svg	http/1.1
uk.com/assets/img/logos/ukcom-primary.png	http/1.1
uk.com/assets/img/icons/loader.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-unrestricted.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-uk-market.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-seo.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-premium.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-seamless.svg	http/1.1
uk.com/assets/img/icons/oversized-icon-ukcom.svg	http/1.1
uk.com/assets/img/table-desktop-ukcom.png?v=2	http/1.1
uk.com/assets/img/table-mobile-ukcom.png?v=2	http/1.1
uk.com/assets/img/icons/ukcom-mag-glass-location.svg	http/1.1
uk.com/assets/img/sites/parklife_uk_com.jpg	http/1.1
uk.com/assets/img/sites/yourleisure_uk_com.jpg	http/1.1
uk.com/assets/img/sites/mitchells_uk_com.jpg	http/1.1
uk.com/assets/img/sites/motif_uk_com.jpg	http/1.1
uk.com/assets/img/sites/bonkers_uk_com.jpg	http/1.1
uk.com/assets/img/sites/circulon_uk_com.jpg	http/1.1
uk.com/assets/img/sites/wards_uk_com.jpg	http/1.1
uk.com/assets/img/sites/lucywalters_uk_com.jpg	http/1.1
uk.com/assets/img/sites/kimchee_uk_com.jpg	http/1.1
uk.com/assets/img/sites/abma_uk_com.jpg	http/1.1
uk.com/assets/img/sites/bbf_uk_com.jpg	http/1.1
uk.com/assets/img/sites/mirrormirror_uk_com.jpg	http/1.1
uk.com/assets/img/sites/theflorist_uk_com.jpg	http/1.1
uk.com/assets/img/sites/logs_uk_com.jpg	http/1.1
uk.com/assets/img/sites/spectre_uk_com.jpg	http/1.1
uk.com/assets/img/sites/plinth_uk_com.jpg	http/1.1
uk.com/assets/img/sites/lifecentre_uk_com.jpg	http/1.1
uk.com/assets/img/sites/osmo_uk_com.jpg	http/1.1
uk.com/assets/img/sites/thetintinshop_uk_com.jpg	http/1.1
uk.com/assets/img/sites/avon_uk_com.jpg	http/1.1
uk.com/assets/img/sites/russells_uk_com.jpg	http/1.1
uk.com/assets/img/logos/ukcom-primary.svg	http/1.1
uk.com/assets/js/lib/jquery-3.5.1.min.js	http/1.1
uk.com/assets/js/main.js?v=1.0.1	http/1.1
uk.com/assets/js/lib/underscore.min.js?v=1.0.1	http/1.1
uk.com/assets/js/search.js?v=1.1.0	http/1.1
uk.com/assets/js/home.js?v=1.0.1	http/1.1
uk.com/assets/img/icons/baseline-open_in_new-24px.svg	http/1.1
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2	http/1.1
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2	http/1.1
uk.com/assets/img/favicon-32x32.png?v=3	http/1.1

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.

title: Preconnected origins

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
uk.com/assets/js/lib/modernizr.min.js?v=1.0	12.7 KiB	826 ms
uk.com/assets/css/style.css?v=1.1.6	51.7 KiB	1.4 s
uk.com/assets/css/bootstrap-grid.min.css	50.5 KiB	826 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 290 ms 81.7 KiB

URL	Transfer Size	Est Savings
uk.com/assets/css/bootstrap-grid.min.css	50.2 KiB	49.6 KiB
uk.com/assets/css/style.css?v=1.1.6	51.5 KiB	32.1 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Other	912 ms
Script Evaluation	493 ms
Style & Layout	360 ms
Rendering	183 ms
Script Parsing & Compilation	92 ms
Parse HTML & CSS	25 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in the main frame.	Actionable

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 16.2 KiB

URL	Transfer Size	Est Savings
uk.com/assets/css/style.css?v=1.1.6	51.7 KiB	16.2 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.2 KiB

URL	Transfer Size	Est Savings
uk.com/assets/js/search.js?v=1.1.0	16.0 KiB	7.6 KiB
uk.com/assets/js/home.js?v=1.0.1	9.5 KiB	4.6 KiB
uk.com/assets/js/main.js?v=1.0.1	4.8 KiB	2.0 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.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

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

Estimated savings: 0.0 ms 190.2 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-Y61CK76R81&cx=c&gtm=4e64f0	155.5 KiB	66.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-TMT52RF	116.9 KiB	63.9 KiB
uk.com/assets/js/lib/jquery-3.5.1.min.js	87.4 KiB	59.8 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
uk.com/assets/img/sites/kimchee_uk_com.jpg	295.3 KiB
uk.com/assets/img/sites/parklife_uk_com.jpg	291.7 KiB
uk.com/assets/img/table-desktop-ukcom.png?v=2	198.5 KiB
uk.com/assets/img/sites/spectre_uk_com.jpg	189.3 KiB
www.googletagmanager.com/gtag/js?id=G-Y61CK76R81&cx=c&gtm=4e64f0	155.6 KiB
uk.com/assets/img/sites/mirrormirror_uk_com.jpg	154.8 KiB
uk.com/assets/img/table-mobile-ukcom.png?v=2	150.0 KiB
uk.com/assets/img/sites/theflorist_uk_com.jpg	148.3 KiB
uk.com/assets/img/sites/russells_uk_com.jpg	144.4 KiB
uk.com/assets/img/sites/motif_uk_com.jpg	141.0 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`	uk.com/assets/img/table-mobile-ukcom.png?v=2
div.row > div.col-12 > div.home-accent__img > img.accent-img `div.row > div.col-12 > div.home-accent__img > img.accent-img`	uk.com/assets/img/icons/oversized-icon-ukcom.svg
.UK.COM `div.container > div.home-hero > div#search > img.home-logo`	uk.com/assets/img/logos/ukcom-primary.png
UK MARKET VISIBILITY WITH GLOBAL REACH `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-uk-market.svg
PREMIUM AVAILABILITY `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-premium.svg
SEO & MARKET ACCESSIBILITY `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-seo.svg
SEAMLESS EXPANSION FOR BUSINESSES & STARTUPS `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-seamless.svg
UNRESTRICTED GLOBAL ACCESS `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-unrestricted.svg
.UK.COM `div.col-12 > div.contact-info-wrapper > div.contact-info > img.contact-info-logo`	uk.com/assets/img/logos/ukcom-primary.svg
.UK.COM `div.row > div.header-logo-container > a > img.header-logo`	uk.com/assets/img/logos/ukcom-small.svg
.UK.COM `div.site-footer__section > div.site-footer__logo > a > img.logo--footer`	uk.com/assets/img/logos/ukcom-small.svg

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Optimize viewport for mobile

●User Timing marks and measures 5 user timings

●JavaScript execution time 0.6 s

●Avoid long main-thread tasks 4 long tasks found

●Network Requests

●Network Round Trip Times 160 ms

●Server Backend Latencies 20 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 160 ms

●Avoid large layout shifts 2 layout shifts found

○INP breakdown

○Avoid non-composited animations

Accessibility

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.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.ds__form-container > div#ds__search-form > div.form__input-group > input.avail-prefix-input `div.ds__form-container > div#ds__search-form > div.form__input-group > input.avail-prefix-input`

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
main > section.section__home-hero > div.home-hero__arrow-down > a.arrow-down__arrow `main > section.section__home-hero > div.home-hero__arrow-down > a.arrow-down__arrow`

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
MENU `div.container > div.row > div.nav-container > button#mobile-nav-toggle`

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-*]` attributes match their roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●`[aria-*]` attributes have valid values

●`[aria-*]` attributes are valid and not misspelled

●Buttons have an accessible name

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●ARIA attributes are used as specified for the element's role

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[accesskey]` values are unique

○`button`, `link`, and `menuitem` elements have accessible names

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○`[aria-hidden="true"]` elements do not contain focusable descendents

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.	uk.com/
Unload event listeners are deprecated and will be removed.	uk.com/assets/js/home.js?v=1.0.1 line 274, col 11

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

SEO

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.

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○robots.txt is valid

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

Performance

Accessibility

Best Practices

SEO

Core Web Vitals

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.

1.52 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.52 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

2 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.

1.58 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.

2.24 s

Detailed Report

Audit breakdown by category with detailed findings.

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Why this matters

Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.

Learn more ▾

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.

Why this matters

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Request	Cache TTL	Transfer Size
uk.com/assets/img/sites/kimchee_uk_com.jpg	0.0 ms	295.3 KiB
uk.com/assets/img/sites/parklife_uk_com.jpg	0.0 ms	291.7 KiB
uk.com/assets/img/table-desktop-ukcom.png?v=2	0.0 ms	198.5 KiB
uk.com/assets/img/sites/spectre_uk_com.jpg	0.0 ms	189.3 KiB
uk.com/assets/img/sites/mirrormirror_uk_com.jpg	0.0 ms	154.8 KiB
uk.com/assets/img/table-mobile-ukcom.png?v=2	0.0 ms	150.0 KiB
uk.com/assets/img/sites/theflorist_uk_com.jpg	0.0 ms	148.3 KiB
uk.com/assets/img/sites/russells_uk_com.jpg	0.0 ms	144.4 KiB
uk.com/assets/img/sites/motif_uk_com.jpg	0.0 ms	141.0 KiB
uk.com/assets/img/sites/logs_uk_com.jpg	0.0 ms	135.0 KiB
uk.com/assets/img/sites/bbf_uk_com.jpg	0.0 ms	113.9 KiB
uk.com/assets/img/sites/mitchells_uk_com.jpg	0.0 ms	113.5 KiB
uk.com/assets/img/sites/lifecentre_uk_com.jpg	0.0 ms	108.5 KiB
uk.com/assets/img/sites/wards_uk_com.jpg	0.0 ms	105.6 KiB
uk.com/assets/img/sites/abma_uk_com.jpg	0.0 ms	102.4 KiB
uk.com/assets/img/sites/plinth_uk_com.jpg	0.0 ms	98.0 KiB
uk.com/assets/img/sites/bonkers_uk_com.jpg	0.0 ms	90.7 KiB
uk.com/assets/js/lib/jquery-3.5.1.min.js	0.0 ms	87.6 KiB
uk.com/assets/img/sites/lucywalters_uk_com.jpg	0.0 ms	87.6 KiB
uk.com/assets/img/sites/avon_uk_com.jpg	0.0 ms	76.8 KiB
uk.com/assets/img/sites/thetintinshop_uk_com.jpg	0.0 ms	74.8 KiB
uk.com/assets/img/sites/circulon_uk_com.jpg	0.0 ms	74.7 KiB
uk.com/assets/img/sites/yourleisure_uk_com.jpg	0.0 ms	71.5 KiB
uk.com/assets/img/sites/osmo_uk_com.jpg	0.0 ms	53.0 KiB
uk.com/assets/css/style.css?v=1.1.6	0.0 ms	51.7 KiB
uk.com/assets/css/bootstrap-grid.min.css	0.0 ms	50.5 KiB
uk.com/assets/img/logos/ukcom-primary.png	0.0 ms	32.5 KiB
uk.com/assets/js/lib/underscore.min.js?v=1.0.1	0.0 ms	16.3 KiB
uk.com/assets/js/search.js?v=1.1.0	0.0 ms	16.2 KiB
uk.com/assets/js/lib/modernizr.min.js?v=1.0	0.0 ms	12.7 KiB
uk.com/assets/img/logos/ukcom-primary.svg	0.0 ms	10.8 KiB
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2	0.0 ms	9.8 KiB
uk.com/assets/js/home.js?v=1.0.1	0.0 ms	9.8 KiB
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2	0.0 ms	9.7 KiB
uk.com/assets/img/icons/icon-ukcom-uk-market.svg	0.0 ms	9.3 KiB
uk.com/assets/img/icons/icon-ukcom-unrestricted.svg	0.0 ms	7.3 KiB
uk.com/assets/img/icons/icon-ukcom-seo.svg	0.0 ms	6.1 KiB
uk.com/assets/img/icons/icon-ukcom-premium.svg	0.0 ms	5.6 KiB
uk.com/assets/js/main.js?v=1.0.1	0.0 ms	5.1 KiB
uk.com/assets/img/icons/icon-ukcom-seamless.svg	0.0 ms	4.5 KiB
uk.com/assets/img/logos/ukcom-small.svg	0.0 ms	3.4 KiB
uk.com/assets/img/icons/oversized-icon-ukcom.svg	0.0 ms	3.2 KiB
uk.com/assets/img/icons/loader.svg	0.0 ms	3.0 KiB
uk.com/assets/img/icons/ukcom-mag-glass-location.svg	0.0 ms	2.3 KiB
uk.com/assets/img/icons/baseline-open_in_new-24px.svg	0.0 ms	795 B

HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Protocol
uk.com/	http/1.1
uk.com/assets/css/bootstrap-grid.min.css	http/1.1
uk.com/assets/css/style.css?v=1.1.6	http/1.1
uk.com/assets/js/lib/modernizr.min.js?v=1.0	http/1.1
uk.com/assets/img/logos/ukcom-small.svg	http/1.1
uk.com/assets/img/logos/ukcom-primary.png	http/1.1
uk.com/assets/img/icons/loader.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-unrestricted.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-uk-market.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-seo.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-premium.svg	http/1.1
uk.com/assets/img/icons/icon-ukcom-seamless.svg	http/1.1
uk.com/assets/img/icons/oversized-icon-ukcom.svg	http/1.1
uk.com/assets/img/table-desktop-ukcom.png?v=2	http/1.1
uk.com/assets/img/table-mobile-ukcom.png?v=2	http/1.1
uk.com/assets/img/icons/ukcom-mag-glass-location.svg	http/1.1
uk.com/assets/img/sites/parklife_uk_com.jpg	http/1.1
uk.com/assets/img/sites/yourleisure_uk_com.jpg	http/1.1
uk.com/assets/img/sites/mitchells_uk_com.jpg	http/1.1
uk.com/assets/img/sites/motif_uk_com.jpg	http/1.1
uk.com/assets/img/sites/bonkers_uk_com.jpg	http/1.1
uk.com/assets/img/sites/circulon_uk_com.jpg	http/1.1
uk.com/assets/img/sites/wards_uk_com.jpg	http/1.1
uk.com/assets/img/sites/lucywalters_uk_com.jpg	http/1.1
uk.com/assets/img/sites/kimchee_uk_com.jpg	http/1.1
uk.com/assets/img/sites/abma_uk_com.jpg	http/1.1
uk.com/assets/img/sites/bbf_uk_com.jpg	http/1.1
uk.com/assets/img/sites/mirrormirror_uk_com.jpg	http/1.1
uk.com/assets/img/sites/theflorist_uk_com.jpg	http/1.1
uk.com/assets/img/sites/logs_uk_com.jpg	http/1.1
uk.com/assets/img/sites/spectre_uk_com.jpg	http/1.1
uk.com/assets/img/sites/plinth_uk_com.jpg	http/1.1
uk.com/assets/img/sites/lifecentre_uk_com.jpg	http/1.1
uk.com/assets/img/sites/osmo_uk_com.jpg	http/1.1
uk.com/assets/img/sites/thetintinshop_uk_com.jpg	http/1.1
uk.com/assets/img/sites/avon_uk_com.jpg	http/1.1
uk.com/assets/img/sites/russells_uk_com.jpg	http/1.1
uk.com/assets/img/logos/ukcom-primary.svg	http/1.1
uk.com/assets/js/lib/jquery-3.5.1.min.js	http/1.1
uk.com/assets/js/main.js?v=1.0.1	http/1.1
uk.com/assets/js/lib/underscore.min.js?v=1.0.1	http/1.1
uk.com/assets/js/search.js?v=1.1.0	http/1.1
uk.com/assets/js/home.js?v=1.0.1	http/1.1
uk.com/assets/img/icons/baseline-open_in_new-24px.svg	http/1.1
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-regular.woff2	http/1.1
uk.com/assets/fonts/albert-sans/albert-sans-v1-latin-900.woff2	http/1.1
uk.com/assets/img/favicon-32x32.png?v=3	http/1.1

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

title: Preconnected origins

value: no origins were preconnected

description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.

title: Preconnect candidates

value: No additional origins are good candidates for preconnecting

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size	Duration
uk.com/assets/js/lib/modernizr.min.js?v=1.0	12.7 KiB	489 ms
uk.com/assets/css/style.css?v=1.1.6	51.7 KiB	813 ms
uk.com/assets/css/bootstrap-grid.min.css	50.5 KiB	489 ms

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
kimchee.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/kimchee_uk_com.jpg	295.0 KiB	281.1 KiB
parklife.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/parklife_uk_com.jpg	291.5 KiB	277.6 KiB
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`	uk.com/assets/img/table-desktop-ukcom.png?v=2	198.3 KiB	150.3 KiB
mirrormirror.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/mirrormirror_uk_com.jpg	154.5 KiB	140.6 KiB
theflorist.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/theflorist_uk_com.jpg	148.1 KiB	134.2 KiB
motif.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/motif_uk_com.jpg	140.8 KiB	127.3 KiB
logs.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/logs_uk_com.jpg	134.8 KiB	121.8 KiB
bbf.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/bbf_uk_com.jpg	113.7 KiB	102.8 KiB
mitchells.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/mitchells_uk_com.jpg	113.2 KiB	102.3 KiB
wards.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/wards_uk_com.jpg	105.4 KiB	95.2 KiB
abma.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/abma_uk_com.jpg	102.2 KiB	92.3 KiB
bonkers.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/bonkers_uk_com.jpg	90.5 KiB	81.8 KiB
lucywalters.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/lucywalters_uk_com.jpg	87.3 KiB	78.9 KiB
circulon.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/circulon_uk_com.jpg	74.4 KiB	67.3 KiB
yourleisure.uk.com `div.home-carousel-item > div.site-preview > a.site-preview__link > img`	uk.com/assets/img/sites/yourleisure_uk_com.jpg	71.3 KiB	64.4 KiB
.UK.COM `div.container > div.home-hero > div#search > img.home-logo`	uk.com/assets/img/logos/ukcom-primary.png	32.3 KiB	25.1 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

Diagnostics

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 170 ms 16.2 KiB

URL	Transfer Size	Est Savings
uk.com/assets/css/style.css?v=1.1.6	51.7 KiB	16.2 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 180 ms 72.6 KiB

URL	Transfer Size	Est Savings
uk.com/assets/css/bootstrap-grid.min.css	50.2 KiB	49.1 KiB
uk.com/assets/css/style.css?v=1.1.6	51.5 KiB	23.5 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reason	Failure type
The page has an unload handler in the main frame.	Actionable

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 14.2 KiB

URL	Transfer Size	Est Savings
uk.com/assets/js/search.js?v=1.1.0	16.0 KiB	7.6 KiB
uk.com/assets/js/home.js?v=1.0.1	9.5 KiB	4.6 KiB
uk.com/assets/js/main.js?v=1.0.1	4.8 KiB	2.0 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.

Why this matters

Multi-megabyte JavaScript bundles delay every interactive feature on the page.

Learn more ▾

Source: Google web.dev / Lighthouse

Estimated savings: 0.0 ms 190.2 KiB

URL	Transfer Size	Est Savings
www.googletagmanager.com/gtag/js?id=G-Y61CK76R81&cx=c&gtm=4e64f0	155.5 KiB	66.5 KiB
www.googletagmanager.com/gtm.js?id=GTM-TMT52RF	116.9 KiB	63.9 KiB
uk.com/assets/js/lib/jquery-3.5.1.min.js	87.4 KiB	59.8 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Transfer Size
uk.com/assets/img/sites/kimchee_uk_com.jpg	295.3 KiB
uk.com/assets/img/sites/parklife_uk_com.jpg	291.7 KiB
uk.com/assets/img/table-desktop-ukcom.png?v=2	198.5 KiB
uk.com/assets/img/sites/spectre_uk_com.jpg	189.3 KiB
www.googletagmanager.com/gtag/js?id=G-Y61CK76R81&cx=c&gtm=4e64f0	155.6 KiB
uk.com/assets/img/sites/mirrormirror_uk_com.jpg	154.8 KiB
uk.com/assets/img/table-mobile-ukcom.png?v=2	150.0 KiB
uk.com/assets/img/sites/theflorist_uk_com.jpg	148.3 KiB
uk.com/assets/img/sites/russells_uk_com.jpg	144.4 KiB
uk.com/assets/img/sites/motif_uk_com.jpg	141.0 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`	uk.com/assets/img/table-desktop-ukcom.png?v=2
.UK.COM `div.container > div.home-hero > div#search > img.home-logo`	uk.com/assets/img/logos/ukcom-primary.png
UK MARKET VISIBILITY WITH GLOBAL REACH `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-uk-market.svg
div.row > div.d-none > div.home-unlock__img > img `div.row > div.d-none > div.home-unlock__img > img`	uk.com/assets/img/icons/ukcom-mag-glass-location.svg
PREMIUM AVAILABILITY `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-premium.svg
SEO & MARKET ACCESSIBILITY `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-seo.svg
SEAMLESS EXPANSION FOR BUSINESSES & STARTUPS `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-seamless.svg
UNRESTRICTED GLOBAL ACCESS `ul.brand-why__content--list > li.brand-why > div.brand-why__image-wrapper > img.brand-why__image`	uk.com/assets/img/icons/icon-ukcom-unrestricted.svg
.UK.COM `div.col-12 > div.contact-info-wrapper > div.contact-info > img.contact-info-logo`	uk.com/assets/img/logos/ukcom-primary.svg
.UK.COM `div.row > div.header-logo-container > a > img.header-logo`	uk.com/assets/img/logos/ukcom-small.svg
.UK.COM `div.site-footer__section > div.site-footer__logo > a > img.logo--footer`	uk.com/assets/img/logos/ukcom-small.svg

More information about the performance of your application. These numbers don't directly affect the Performance score.

●Time to Interactive 2.2 s

●Layout shift culprits

●Document request latency

●Optimize DOM size

●Font display

●Forced reflow

●LCP breakdown

●Optimize viewport for mobile

●Max Potential First Input Delay 50 ms

●User Timing marks and measures 5 user timings

●JavaScript execution time 0.1 s

●Minimizes main-thread work 0.6 s

●Avoid long main-thread tasks 1 long task found

●Network Requests

●Network Round Trip Times 150 ms

●Server Backend Latencies 20 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Avoid multiple page redirects

●Initial server response time was short Root document took 160 ms

●Avoid large layout shifts 1 layout shift found

○INP breakdown

○LCP request discovery

○Avoid non-composited animations

Accessibility

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Register `nav#header-main-nav > ul.top-level-nav > li.main-nav-item > a.main-nav-link`
Why .UK.COM? `nav#header-main-nav > ul.top-level-nav > li.main-nav-item > a.main-nav-link`
Live Sites `nav#header-main-nav > ul.top-level-nav > li.main-nav-item > a.main-nav-link`
WHOIS `nav#header-main-nav > ul.top-level-nav > li.main-nav-item > a.main-nav-link`
Contact Us `nav#header-main-nav > ul.top-level-nav > li.main-nav-item > a.main-nav-link`
Report Abuse `nav#header-main-nav > ul.top-level-nav > li.main-nav-item > a.main-nav-link`

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`

Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.ds__form-container > div#ds__search-form > div.form__input-group > input.avail-prefix-input `div.ds__form-container > div#ds__search-form > div.form__input-group > input.avail-prefix-input`

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
main > section.section__home-hero > div.home-hero__arrow-down > a.arrow-down__arrow `main > section.section__home-hero > div.home-hero__arrow-down > a.arrow-down__arrow`

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.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

○The user's focus is directed to new content added to the page

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

●`[aria-hidden="true"]` is not present on the document `<body>`

●`[role]`s have all required `[aria-*]` attributes

●`[role]` values are valid

●Buttons have an accessible name

●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.

●Document has a `<title>` element

●`<html>` element has a `[lang]` attribute

●`<html>` element has a valid value for its `[lang]` attribute

●Links are distinguishable without relying on color.

●Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).

●List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements

●Touch targets have sufficient size and spacing.

●Heading elements appear in a sequentially-descending order

●Document has a main landmark.

●Deprecated ARIA roles were not used

○`[accesskey]` values are unique

○`[aria-*]` attributes match their roles

○`button`, `link`, and `menuitem` elements have accessible names

○ARIA attributes are used as specified for the element's role

○Elements with `role="dialog"` or `role="alertdialog"` have accessible names.

○`[aria-hidden="true"]` elements do not contain focusable descendents

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○Elements use only permitted ARIA attributes

○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.

○`[role]`s are contained by their required parent element

○Elements with the `role=text` attribute do not have focusable descendents.

○ARIA toggle fields have accessible names

○ARIA `tooltip` elements have accessible names

○ARIA `treeitem` elements have accessible names

○`[aria-*]` attributes have valid values

○`[aria-*]` attributes are valid and not misspelled

○The page contains a heading, skip link, or landmark region

○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.

○Definition list items are wrapped in `<dl>` elements

○ARIA IDs are unique

○No form fields have multiple labels

○`<frame>` or `<iframe>` elements have a title

○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.

○Input buttons have discernible text.

○`<input type="image">` elements have `[alt]` text

○The document does not use `<meta http-equiv="refresh">`

○`<object>` elements have alternate text

○Select elements have associated label elements.

○Skip links are focusable.

○No element has a `[tabindex]` value greater than 0

○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.

○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.

○`[lang]` attributes have a valid value

○`<video>` elements contain a `<track>` element with `[kind="captions"]`

○Tables have different content in the summary attribute and `<caption>`.

○All heading elements contain content.

○Uses ARIA roles only on compatible elements

○Image elements do not have `[alt]` attributes that are redundant text.

○Identical links have the same purpose.

○Elements with visible text labels have matching accessible names.

○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.

○`<td>` elements in a large `<table>` have one or more table headers.

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / Warning	Source
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.	uk.com/
Unload event listeners are deprecated and will be removed.	uk.com/assets/js/home.js?v=1.0.1 line 274, col 11

●Uses HTTPS

●Avoids third-party cookies

●Allows users to paste into input fields

●Avoids requesting the geolocation permission on page load

●Avoids requesting the notification permission on page load

●Displays images with correct aspect ratio

●Serves images with appropriate resolution

●Page has the HTML doctype

●Properly defines charset

●No browser errors logged to the console

●No issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Use a strong HSTS policy

●Ensure proper origin isolation with COOP

●Mitigate clickjacking with XFO or CSP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

SEO

Content Best Practices

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img `section.section__home-chart > div.chart__wrapper > div.col-12 > img.chart__img`

Format your HTML in a way that enables crawlers to better understand your app’s content.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Document has a meta description

●Page has successful HTTP status code

●Links have descriptive text

●Links are crawlable

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`

○robots.txt is valid

Results for https://uk.com

Site Health

How you compare

Top Priorities (5)

Fix Priority Matrix

Quick Wins

Strategic

Easy Improvements

Deprioritize

What fixing these means

Conversion Barriers

Speed (1)

Trust (2)

Usability (1)

Content (2)

Navigation (1)

Return on Investment

Investment

Monthly returns

Regulatory risk avoided

Payback period

Estimated Remediation Cost

Cost by category

Cost by effort level

What Inaction Is Costing You

Compliance Risk

Bandwidth Waste

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Names and labels

Best Practices

General

SEO

Content Best Practices

Lighthouse Scores

Core Web Vitals

Detailed Report

Performance

Insights

Diagnostics

Accessibility

Contrast

Names and labels

Best Practices

General

SEO

Content Best Practices

Keyboard Shortcuts