Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
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
Performance issues directly impact user engagement and conversion rates.
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.
A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Guinness World Records Announces First Permanent UK Attraction - image of The O… div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | www.guinnessworldrecords.com/images/london-venue-homepage-banner.png | 577.0 KiB | 475.6 KiB |
Explore creative campaigns – image of a car performing a loop-the-loop article > a > div.columned-image > img.lazy | /products/images/largest-loop-the-loop-in-a-car-for-tile.jpg | 195.6 KiB | 187.8 KiB |
Record selector screenshot article > a > div.columned-image > img.lazy | /products/images/tile-for-record-selector-homepage.jpg | 186.1 KiB | 171.4 KiB |
Pont-des-Arts with love-locks on the railing a > article.news-item > figure > img | www.guinnessworldrecords.com/news/2026/4/images/love-locks-thumbnail.png | 200.2 KiB | 169.5 KiB |
Herbie the rabbit then and now a > article.news-item > figure > img | www.guinnessworldrecords.com/news/2026/4/images/oldest-rabbit-new-thumbnail.jpg | 192.0 KiB | 167.0 KiB |
split image of Tom with certificate and some of his tattoos a > article.news-item > figure > img | /news/2026/4/images/most-marvel-tattoos-thumbnail.jpg | 184.1 KiB | 159.0 KiB |
GWR for Business
We’re on a mission to show off your brilliant brand, and your… body.en > main#main > section.component-wrapper | www.guinnessworldrecords.com/images/b2b-online-records-banner.jpg | 320.8 KiB | 135.2 KiB |
Split image of Saimaiti Yiming walking in his stilts and at the ceremony a > article.news-item > figure > img | www.guinnessworldrecords.com/news/2026/4/images/stilts-24hr-thumbnail.jpg | 140.8 KiB | 115.7 KiB |
Split image of a man lifting weight with his tongue; another man lifting weight… a > article.news-item > figure > img | www.guinnessworldrecords.com/news/2026/4/images/strongest-bodypart-thumbnail.png | 133.1 KiB | 108.1 KiB |
GWR-Store div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | /products/images/banner-with-gwr2026-homepage-1900x650.jpg | 188.3 KiB | 93.2 KiB |
The LEGO display in front of planet Earth a > article.news-item > figure > img | www.guinnessworldrecords.com/news/2026/4/images/phm-lego-header-image.jpg | 119.9 KiB | 89.2 KiB |
Explore GWR Studios - record breaker taking photograph article > a > div.columned-image > img.lazy | www.guinnessworldrecords.com/images/gwr-studios.jpg | 95.0 KiB | 87.2 KiB |
Explore case studies - group of record breakers with certificate article > a > div.columned-image > img.lazy | /products/images/view-our-case-studies-with-certificate-a... | 87.7 KiB | 79.8 KiB |
Marathon runner group article > a > div.columned-image > img.lazy | www.guinnessworldrecords.com/images/marathon-runner-group-home.jpg | 91.1 KiB | 76.3 KiB |
banner for news story div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | www.guinnessworldrecords.com/images/dr-howard-carousel.jpg | 146.4 KiB | 72.5 KiB |
Stelarc showing off the ear on his arm a > article.news-item > figure > img | /news/2026/4/images/stelarc-ear-on-arm-header-image.jpg | 123.1 KiB | 66.7 KiB |
Guinness World Records Kids logo article > a > div.columned-image > img.lazy | /images/guinness-world-records-kids-logo-on-purple-backgr... | 71.4 KiB | 56.6 KiB |
Explore Employee engagement - group gathering article > a > div.columned-image > img.lazy | www.guinnessworldrecords.com/images/employee-engagement-home.jpg | 61.5 KiB | 53.7 KiB |
Guinness World Records Navy Beanie- div.shopify-buy__collection-products > div.has-image > div.shopify-buy__product-img-wrapper > img.shopify-buy__product__variant-img | /s/files/1/0570/8388/7782/files/guinness-world-records-na... | 34.4 KiB | 31.0 KiB |
Black Cap div.shopify-buy__collection-products > div.has-image > div.shopify-buy__product-img-wrapper > img.shopify-buy__product__variant-img | /s/files/1/0570/8388/7782/files/Black_Cap_Packshots_1_550... | 25.0 KiB | 22.0 KiB |
Guinness World Records header#header > div.logo > a > img | www.guinnessworldrecords.com/images/og_image.jpg | 18.1 KiB | 17.4 KiB |
Guinness World Records Aluminium Water Bottle-Silver div.shopify-buy__collection-products > div.has-image > div.shopify-buy__product-img-wrapper > img.shopify-buy__product__variant-img | /s/files/1/0570/8388/7782/files/Water_Bottle_1_6f4f2ce2-d... | 13.3 KiB | 11.7 KiB |
Guinness World Records Ceramic Mug-White div.shopify-buy__collection-products > div.has-image > div.shopify-buy__product-img-wrapper > img.shopify-buy__product__variant-img | /s/files/1/0570/8388/7782/files/Guinness-World-_Records-O... | 10.8 KiB | 9.5 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.
Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Duration |
|---|---|---|
| www.guinnessworldrecords.com/css/main.min.css | 28.5 KiB | 81 ms |
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.
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 |
|---|---|
| guinnessworldrecords.com/ | 244 ms |
| www.guinnessworldrecords.com/ | 311 ms |
| www.guinnessworldrecords.com/ | 0.0 ms |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.guinnessworldrecords.com/css/main.min.css | 28.0 KiB | 23.9 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtm.js?id=GTM-WW669H | 147.7 KiB | 66.0 KiB |
| www.googletagmanager.com/gtag/js?id=G-QBVKPTNFD0&cx=c&_slc=1 | 168.2 KiB | 59.7 KiB |
| www.ezojs.com/identity.js | 101.2 KiB | 57.7 KiB |
| go.ezodn.com/porpoiseant/ezadloadrewarded.js?cb=1048&gcb=195-42 | 62.4 KiB | 41.1 KiB |
| connect.facebook.net/en_US/fbevents.js | 96.5 KiB | 34.8 KiB |
| www.ezojs.com/ezoic/sa.min.js | 65.2 KiB | 33.0 KiB |
| sdks.shopifycdn.com/buy-button/latest/buy-button-storefront.min.js | 59.5 KiB | 26.9 KiB |
| www.guinnessworldrecords.com/js/scripts.min.js | 33.0 KiB | 20.1 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
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| The page has an unload handler in the main frame. | Actionable |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
GWR-Store div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | /products/images/banner-with-gwr2026-homepage-1900x650.jpg |
banner for news story div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | www.guinnessworldrecords.com/images/dr-howard-carousel.jpg |
Guinness World Records Announces First Permanent UK Attraction - image of The O… div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | www.guinnessworldrecords.com/images/london-venue-homepage-banner.png |
GWR-Store div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | /products/images/banner-with-gwr2026-homepage-1900x650.jpg |
banner for news story div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | www.guinnessworldrecords.com/images/dr-howard-carousel.jpg |
Guinness World Records Announces First Permanent UK Attraction - image of The O… div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | www.guinnessworldrecords.com/images/london-venue-homepage-banner.png |
GWR-Store div.slick-track > div.slider-holder > a.slider-holder-link > img.lazy | /products/images/banner-with-gwr2026-homepage-1900x650.jpg |
Explore creative campaigns – image of a car performing a loop-the-loop article > a > div.columned-image > img.lazy | /products/images/largest-loop-the-loop-in-a-car-for-tile.jpg |
Explore Employee engagement - group gathering article > a > div.columned-image > img.lazy | www.guinnessworldrecords.com/images/employee-engagement-home.jpg |
Explore GWR Studios - record breaker taking photograph article > a > div.columned-image > img.lazy | www.guinnessworldrecords.com/images/gwr-studios.jpg |
Explore case studies - group of record breakers with certificate article > a > div.columned-image > img.lazy | /products/images/view-our-case-studies-with-certificate-a... |
Guinness World Records Kids logo article > a > div.columned-image > img.lazy | /images/guinness-world-records-kids-logo-on-purple-backgr... |
Marathon runner group article > a > div.columned-image > img.lazy | www.guinnessworldrecords.com/images/marathon-runner-group-home.jpg |
Record selector screenshot article > a > div.columned-image > img.lazy | /products/images/tile-for-record-selector-homepage.jpg |
Guinness World Records div.logo_main > div.logo > a > img | www.guinnessworldrecords.com/images/logo.png |
Guinness World Records header#header > div.logo > a > img | www.guinnessworldrecords.com/images/og_image.jpg |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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.
Contrast
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
EN div.menu > div.nav-links > a#globe > span.two-letter-iso-code |
Are you ear-ing this? Australian artist surgically implanted an extra ear on to… a > article.news-item > header > h3 |
How a Paris bridge nearly collapsed under 45 tonnes of love a > article.news-item > header > h3 |
Lucky rabbit Herbie becomes oldest of his species after doubling life expectancy a > article.news-item > header > h3 |
What is the strongest part of the human body? These records might surprise you! a > article.news-item > header > h3 |
Marvel obsessive breaks record by covering body in over 60 tattoos of iconic ch… a > article.news-item > header > h3 |
These stilts were made for walkin’: Chinese man travelled 50 miles in sky-high … a > article.news-item > header > h3 |
Bricks and spaceships: a ‘Project Hail Mary’ LEGO minifig has made it to space a > article.news-item > header > h3 |
More news section.component-wrapper > div.container > div.fullwidth-cta-holder > a.btn |
Creative campaigns a > div.columned-text > div.container > h4.columned-text-title |
Employee engagement a > div.columned-text > div.container > h4.columned-text-title |
GWR Studios a > div.columned-text > div.container > h4.columned-text-title |
View our case studies a > div.columned-text > div.container > h4.columned-text-title |
Visit business solutions section.component-wrapper > div.container > div.cta-holder > a.btn |
Shop Now section.component-wrapper > div.container > div.fullwidth-cta-holder > a.btn |
USING THIS SITE footer#footer > div.container > section.footer-section > h5 |
CONTACT US footer#footer > div.container > section.footer-section > h5 |
These are opportunities to improve the legibility of your content.
Navigation
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 |
|---|
Creative campaigns a > div.columned-text > div.container > h4.columned-text-title |
Guinness World Records Kids a > div.columned-text > div.container > h4.columned-text-title |
These are opportunities to improve keyboard navigation in your application.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| AttributionReporting | |
| Unload event listeners are deprecated and will be removed. |
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.
Crawling and Indexing
Search engines may use `href` attributes on links to crawl websites. Ensure that the `href` attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable
Performance issues directly impact user engagement and conversion rates.
| Uncrawlable Link |
|---|
Vendor List div#ez-cookie-dialog-wrapper > div#ez-cookie-dialog > div#secondary-links > a#ez-vendors |
To appear in search results, crawlers need access to your app.