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.
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.ft.com/__assets/hashed/page-kit/styles.9b047f37ee5e.css | 28.1 KiB | 381 ms |
| www.ft.com/__assets/hashed/page-kit/632.d01de9f81419.css | 28.1 KiB | 381 ms |
| www.ft.com/__assets/hashed/page-kit/579.fc5bb38924ff.css | 28.6 KiB | 260 ms |
| www.ft.com/__assets/hashed/page-kit/page-kit-layout-styles.74508e04204a.css | 14.0 KiB | 260 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 | |
|---|---|---|---|
What Am I, A Deer? — Polly Barton’s love letter to karaoke div.featured-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 119.8 KiB | 85.4 KiB |
The Authenticator — incisive drama explores the toxic legacy of slavery in Engl… div.featured-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 76.9 KiB | 54.8 KiB |
The war to break Iran’s economy div.featured-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 72.1 KiB | 52.0 KiB |
Campaign to curb cars in Berlin sparks uproar ahead of election div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 69.8 KiB | 50.0 KiB |
The future of global trade won’t depend on the Strait of Hormuz div.primary-opinion-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 55.6 KiB | 44.4 KiB |
Blackstone and Tinicum agree £1.4bn deal for UK aerospace supplier Senior div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 39.6 KiB | 28.3 KiB |
Europe’s rearmament meets reality: the story of a failed frigate project div.spotlight-story-main__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 39.7 KiB | 27.7 KiB |
Unhedged Podcast div.grid-item > a.link > picture > img.image | /v3/image/raw/https://next-video-editor-images.s3.ap-nort... | 23.7 KiB | 22.1 KiB |
Newswrap Newsletter div.promo__links-image > a.link > picture > img.image | /v3/image/raw/https://www.ft.com/__assets/creatives/homep... | 20.3 KiB | 19.6 KiB |
China offers diplomatic immunity in bid to host oceans treaty div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 24.6 KiB | 18.0 KiB |
Trump and Vance back Orbán ahead of Hungary’s election div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 23.0 KiB | 16.8 KiB |
Hedge funds make record bets against European stocks div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 21.4 KiB | 15.7 KiB |
IMF warns of emerging markets’ exposure to ‘flighty’ hedge funds div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 19.0 KiB | 13.9 KiB |
Russian military hackers reroute British internet users’ traffic div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 18.6 KiB | 13.6 KiB |
UK pubs and restaurants face ‘permacrisis’ after energy shock div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 18.4 KiB | 13.5 KiB |
Kanye West banned from entering UK after antisemitism dispute div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 18.0 KiB | 13.1 KiB |
Swamp Notes podcast div.grid-item > a.link > picture > img.image | /v3/image/raw/https://next-video-editor-images.s3.ap-nort... | 14.1 KiB | 13.0 KiB |
Can the Iran war save Starmer’s premiership? div.primary-story__image > a.link > picture > img.image | /v3/image/raw/https://d1e00ek4ebabms.cloudfront.net/produ... | 14.0 KiB | 12.5 KiB |
Political Fix podcast div.grid-item > a.link > picture > img.image | /v3/image/raw/https://next-video-editor-images.s3.ap-nort... | 13.2 KiB | 12.2 KiB |
These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.
Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.
Performance issues directly impact user engagement and conversion rates.
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.ft.com/__assets/hashed/page-kit/styles.9b047f37ee5e.css | 26.7 KiB | 22.0 KiB |
| www.ft.com/__assets/hashed/page-kit/page-kit-layout-styles.74508e04204a.css | 12.6 KiB | 10.8 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 |
|---|---|---|
| /pagead/managed/js/gpt/m202604020101/pubads_impl.js | 182.6 KiB | 138.1 KiB |
| www.googletagmanager.com/gtm.js?id=GTM-NWQJW68 | 175.0 KiB | 74.5 KiB |
| www.ft.com/__assets/hashed/page-kit/301.ca2546bf8793.bundle.js | 97.5 KiB | 69.8 KiB |
| consent-manager.ft.com/Notice.8f529.js | 90.9 KiB | 61.4 KiB |
| consent-manager.ft.com/unified/4.40.1/usnat.f12613136193900e32e2.bundle.js | 41.6 KiB | 21.5 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
Europe’s rearmament meets reality: the story of a failed frigate project div.spotlight-story-main__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
The Authenticator — incisive drama explores the toxic legacy of slavery in Engl… div.featured-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
What Am I, A Deer? — Polly Barton’s love letter to karaoke div.featured-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Blackstone and Tinicum agree £1.4bn deal for UK aerospace supplier Senior div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Campaign to curb cars in Berlin sparks uproar ahead of election div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
The war to break Iran’s economy div.featured-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
The future of global trade won’t depend on the Strait of Hormuz div.primary-opinion-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Ramdane Touhami is making the world’s most beautiful stationery div.featured-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Chasing Freedom — Simukai Chigudu on the trail of Rhodes and Mugabe div.featured-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Say cheers to the no-frills cocktail div.featured-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Face Swaps & Deepfakes div.preview__image--container > div.preview__image--wrapper > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
div.preview__image--container > div.preview__image--wrapper > picture > img.image div.preview__image--container > div.preview__image--wrapper > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
div.preview__image--container > div.preview__image--wrapper > picture > img.image div.preview__image--container > div.preview__image--wrapper > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
Can India quit coal? div.preview__image--container > div.preview__image--wrapper > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
Kanye West banned from entering UK after antisemitism dispute div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Commerzbank clashes with UniCredit over failed takeover talks div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
UK pubs and restaurants face ‘permacrisis’ after energy shock div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Bill Ackman’s Pershing offers to buy Universal Music in €55bn deal div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Hedge funds make record bets against European stocks div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Russian military hackers reroute British internet users’ traffic div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Trump and Vance back Orbán ahead of Hungary’s election div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Anthropic rolls out cyber AI model days after source code leak div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Citi sets aggressive targets for bankers in wealth management unit div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Bezos’s Project Prometheus poaches xAI co-founder from OpenAI div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
IMF warns of emerging markets’ exposure to ‘flighty’ hedge funds div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
The Bolsonaro dynasty plots its comeback div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Artemis II astronauts head back to Earth after record-breaking Moon trip div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
BP chair faces re-election battle after board blocks climate resolution div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
China offers diplomatic immunity in bid to host oceans treaty div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
The big state gamble on prediction markets div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Can the Iran war save Starmer’s premiership? div.primary-story__image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://d1e00ek4eb... |
Newswrap Newsletter div.promo__links-image > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://www.ft.com... |
FT News Briefing podcast div.grid-item > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
Swamp Notes podcast div.grid-item > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
Unhedged Podcast div.grid-item > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
Political Fix podcast div.grid-item > a.link > picture > img.image | /__origami/service/image/v2/images/raw/https://next-video... |
Gulf states consider new pipelines to avoid Strait of Hormuz div.primary-story__image > a.link > picture > img.image | |
Say no to a ‘camera on your face’, says Meta smart glasses rival div.primary-story__image > a.link > picture > img.image |
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.
ARIA
Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Close banner div.o-banner > div.o-banner__outer > div.o-banner__inner > button.o-banner__close |
These are opportunities to improve the usage of ARIA in your application which 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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
FT Editorial Code of Practice div.o-footer__container > div.o-footer__copyright > small > a |
Best Practices
General
Errors logged to the console indicate unresolved problems. They can come from network request failures and other browser concerns. Learn more about this errors in console diagnostic audit
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Access to font at 'https://www.ft.com/__origami/service/build/v3/font?font_format=woff2&font_name=MetricWeb-Regular&system_code=origami&version=1.12' from origin 'https://consent-manager.ft.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. | |
Access to font at 'https://www.ft.com/__origami/service/build/v3/font?font_format=woff2&font_name=MetricWeb-Semibold&system_code=origami&version=1.12' from origin 'https://consent-manager.ft.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. | |
Failed to load resource: net::ERR_FAILED | |
Failed to load resource: net::ERR_FAILED |
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.