Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.

SCORE

GRADE

FIX

REVIEW

PASS

INFO

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

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.

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
/assets/home/_next/static/media/DRS-G-2x~444bb8a2f38894fc...	86400.0 s	291.5 KiB
consent.formula1.com/Notice.8f529.js	3600.0 s	91.2 KiB
www.formula1.com/s/fonts/titillium/TitilliumWeb-Regular.ttf	0.0 ms	56.6 KiB
www.formula1.com/s/fonts/titillium/TitilliumWeb-SemiBold.ttf	0.0 ms	55.9 KiB
www.formula1.com/s/fonts/titillium/TitilliumWeb-Bold.ttf	0.0 ms	53.2 KiB
www.formula1.com/s/fonts/apax-th/Apax-TAG-Heuer-Superbold.woff2	0.0 ms	35.2 KiB
www.formula1.com/s/fonts/apax-th/Apax-TAG-Heuer-Medium.woff2	0.0 ms	34.8 KiB
www.formula1.com/s/fonts/apax-th/Apax-TAG-Heuer-Regular.woff2	0.0 ms	34.4 KiB
consent.formula1.com/unified/wrapperMessagingWithoutDetection.js	3600.0 s	40.4 KiB
www.formula1.com/s/fonts/formula1/Formula1-Black.woff2	0.0 ms	26.8 KiB
www.formula1.com/s/fonts/formula1/Formula1-Bold.woff2	0.0 ms	25.3 KiB
www.formula1.com/s/fonts/formula1/Formula1-Regular.woff2	0.0 ms	25.0 KiB
www.formula1.com/s/fonts/kh-interference-f1/KHInterferenceF1-Bold.woff2	0.0 ms	21.0 KiB
www.formula1.com/s/fonts/kh-interference-f1/KHInterferenceF1-Regular.woff2	0.0 ms	20.0 KiB
www.formula1.com/etc/designs/fom-website/fonts/F1Regular/Formula1-Regular.woff2	86400.0 s	25.1 KiB
consent.formula1.com/Notice.30929.css	3600.0 s	6.7 KiB
www.formula1.com/assets/home/_next/static/media/tagFace-Red-LQ.e3041f60.webp	86400.0 s	7.9 KiB
/assets/home/_next/static/media/app-store~c48d2499a745551...	86400.0 s	6.1 KiB
www.formula1.com/assets/home/_next/static/media/tagHour.13fe95af.webp	86400.0 s	5.4 KiB
www.formula1.com/assets/home/_next/static/media/tagSecond.2e30a59c.webp	86400.0 s	5.0 KiB
consent.formula1.com/polyfills.01516.js	3600.0 s	2.3 KiB
www.formula1.com/assets/home/_next/static/media/tagMinute.03c6bd43.webp	86400.0 s	4.4 KiB
/assets/home/_next/static/media/google-play~66d1792be650c...	86400.0 s	3.4 KiB
www.formula1.com/s/fonts.css	0.0 ms	973 B
www.formula1.com/assets/home/_next/static/media/tagShield.fffe089e.svg	86400.0 s	2.2 KiB

Consider setting font-display to swap or optional to ensure text is consistently visible. swap can be further optimized to mitigate layout shifts with font metric overrides.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Est Savings
www.formula1.com/s/fonts/formula1/Formula1-Black.woff2	275 ms
www.formula1.com/s/fonts/titillium/TitilliumWeb-SemiBold.ttf	275 ms
www.formula1.com/s/fonts/titillium/TitilliumWeb-Regular.ttf	270 ms
www.formula1.com/s/fonts/kh-interference-f1/KHInterferenceF1-Bold.woff2	270 ms
www.formula1.com/s/fonts/formula1/Formula1-Regular.woff2	260 ms
www.formula1.com/s/fonts/formula1/Formula1-Bold.woff2	260 ms
www.formula1.com/s/fonts/titillium/TitilliumWeb-Bold.ttf	255 ms
www.formula1.com/s/fonts/apax-th/Apax-TAG-Heuer-Regular.woff2	65 ms
www.formula1.com/s/fonts/kh-interference-f1/KHInterferenceF1-Regular.woff2	60 ms
www.formula1.com/s/fonts/apax-th/Apax-TAG-Heuer-Medium.woff2	60 ms
www.formula1.com/s/fonts/apax-th/Apax-TAG-Heuer-Superbold.woff2	55 ms
www.formula1.com/etc/designs/fom-website/fonts/F1Regular/Formula1-Regular.woff2	40 ms

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:52.419 source:map[type:text value:[unattributed]]]]

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
Who is the first to pay the bill? F1 drivers play 'Fill in the Blanks' `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/0d611ea2-339f-40c9-ae19-8d...	510.6 KiB	501.5 KiB
Jolyon Palmer's Analysis: Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/f01261a7-0140-4c3a-b88f-96...	468.8 KiB	459.8 KiB
Race Highlights: 2026 Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/11e747a6-5586-46a4-8a29-c9...	394.0 KiB	385.0 KiB
FP3 Highlights: 2026 Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/9bc8fbfe-55e3-42b1-97e0-17...	361.1 KiB	352.1 KiB
DHL Fastest Pit Stop: 2026 Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/c616c9cd-8a3a-4bba-95d8-9a...	352.8 KiB	343.8 KiB
FP2 Highlights: 2026 Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/e01d38dd-e954-432e-8105-90...	327.1 KiB	318.1 KiB
Qualifying Highlights: 2026 Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/8690c544-85dc-4fda-a818-7c...	310.9 KiB	301.9 KiB
Race Highlights: 2026 Chinese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/d92d46c1-ff89-4fd2-9557-b3...	275.0 KiB	265.9 KiB
mercedes-factory.png `ul.grid > li.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/c_fit,w_1584/q_auto/v1740000001/mercedes-fa...	213.4 KiB	176.7 KiB
FP1 Highlights: 2026 Japanese Grand Prix `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/295d83b5-28c8-45b3-8d76-4e...	173.8 KiB	164.7 KiB
2026 Japanese Grand Prix: Antonelli crosses the line to take his second career … `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/2d65ae42-0aff-4e2c-b9ff-de...	167.0 KiB	158.0 KiB
EXCLUSIVEINTERVIEW%20FEATURE%20V5%20DISPLAY%20-%20single%20arty%20image%20(FOCU… `ul.grid > li.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/c_fit,w_1584/q_auto/v1740000001/fom-website...	155.2 KiB	128.5 KiB
2026 Japanese Grand Prix: Piastri crosses the line to seal first podium of the … `div.VideoMediaCard-module_rounded-corners__JgmZf > span.ImageCard-module_imagecard__3msoQ > span.ImageCard-module_image__yQ3ec > img`	/image/v1/static/6057949432001/7243bec8-5e6e-4a79-bc64-27...	109.8 KiB	100.8 KiB
Race-winning overtakes but they happen progressively later `a > span.group > span.overflow-hidden > img.w-full`	/image/v1/static/6057949432001/f67b25aa-67dc-4b4d-bcfb-8b...	88.8 KiB	86.1 KiB
SUZUKA, JAPAN - MARCH 29: Oscar Piastri of Australia driving the (81) McLaren M… `ul.grid > li.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/t_16by9Centre/c_fit,w_1584/q_auto/v17400000...	61.5 KiB	59.3 KiB
striking-f1-liveries-feature-display.png `ul.grid > li.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/c_fit,w_1584/q_auto/v1740000001/fom-website...	58.0 KiB	55.9 KiB
SUZUKA, JAPAN - MARCH 29: Race winner Andrea Kimi Antonelli of Italy and Merced… `ul.grid > li.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/t_16by9North/c_fit,w_1584/q_auto/v174000000...	55.0 KiB	53.0 KiB
Antonelli%20Japan%20Sunday1.png `ul.grid > li.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/t_16by9Centre/c_fit,w_1584/q_auto/v17400000...	51.0 KiB	49.2 KiB
16x9%20single%20image%20-%202026-04-07T102424.308.png `div.flex > span.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img`	/image/upload/c_fit,h_1200/q_auto/v1740000001/fom-website...	53.7 KiB	31.2 KiB
div.flex > div.grid > div.relative > img.absolute `div.flex > div.grid > div.relative > img.absolute`	/image/upload/c_lfill,w_380/q_auto/d_common:f1:2026:fallb...	36.9 KiB	27.7 KiB
div.flex > div.grid > div.relative > img.absolute `div.flex > div.grid > div.relative > img.absolute`	/image/upload/c_lfill,w_380/q_auto/d_common:f1:2026:fallb...	28.9 KiB	21.7 KiB
div.flex > div.grid > div.relative > img.absolute `div.flex > div.grid > div.relative > img.absolute`	/image/upload/c_lfill,w_380/q_auto/d_common:f1:2026:fallb...	25.5 KiB	19.1 KiB
SUZUKA, JAPAN - MARCH 29: Race winner Andrea Kimi Antonelli of Italy and Merced… `a > span.group > span.overflow-hidden > img.w-full`	/image/upload/t_16by9North/c_fill,w_192,h_192,g_center/q_...	9.5 KiB	8.0 KiB
td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img `td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img`	/image/upload/c_lfill,w_64/q_auto/d_common:f1:2026:fallba...	7.8 KiB	7.7 KiB
Tag Heuer Clock `div.flex > a > span.relative > img.absolute`	www.formula1.com/assets/home/_next/static/media/tagFace-Red-LQ.e3041f60.webp	7.3 KiB	7.1 KiB
Mekies.png `a > span.group > span.overflow-hidden > img.w-full`	/image/upload/t_16by9North/c_fill,w_192,h_192,g_center/q_...	8.2 KiB	6.7 KiB
td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img `td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img`	/image/upload/c_lfill,w_64/q_auto/d_common:f1:2026:fallba...	6.8 KiB	6.6 KiB
td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img `td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img`	/image/upload/c_lfill,w_64/q_auto/d_common:f1:2026:fallba...	6.2 KiB	6.0 KiB
td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img `td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img`	/image/upload/c_lfill,w_64/q_auto/d_common:f1:2026:fallba...	6.0 KiB	5.8 KiB
Sainz%20Japan.png `a > span.group > span.overflow-hidden > img.w-full`	/image/upload/c_fill,w_192,h_192,g_center/q_auto/v1740000...	7.0 KiB	5.5 KiB
td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img `td.typography-module_body-s-semibold__O2lOH > span.flex > span.DriverAvatar-module_driveravatar__CrhU8 > img`	/image/upload/c_lfill,w_64/q_auto/d_common:f1:2026:fallba...	5.3 KiB	5.1 KiB
div.flex > a > span.relative > img.absolute `div.flex > a > span.relative > img.absolute`	www.formula1.com/assets/home/_next/static/media/tagHour.13fe95af.webp	4.8 KiB	4.8 KiB
div.flex > a > span.relative > img.absolute `div.flex > a > span.relative > img.absolute`	www.formula1.com/assets/home/_next/static/media/tagSecond.2e30a59c.webp	4.5 KiB	4.4 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-18-IMG

nodeLabel: 16x9%20single%20image%20-%202026-04-07T102424.308.png

path: 1,HTML,1,BODY,0,DIV,2,MAIN,2,DIV,1,DIV,0,DIV,0,DIV,1,DIV,0,SPAN,0,SPAN,0,IMG

selector: div.flex > span.DynamicArticleCard-module_card__GNumG > span.DynamicArticleCard-module_image__N42Rw > img

snippet: <img src="https://media.formula1.com/image/upload/c_fit,h_1200/q_auto/v1740000001/fo…" alt="16x9%20single%20image%20-%202026-04-07T102424.308.png">

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

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
/image/v1/static/6057949432001/f67b25aa-67dc-4b4d-bcfb-8b...	http/1.1
/image/v1/static/6057949432001/0d611ea2-339f-40c9-ae19-8d...	http/1.1
/image/v1/static/6057949432001/f67b25aa-67dc-4b4d-bcfb-8b...	http/1.1
/image/v1/static/6057949432001/f01261a7-0140-4c3a-b88f-96...	http/1.1
/image/v1/static/6057949432001/7243bec8-5e6e-4a79-bc64-27...	http/1.1
/image/v1/static/6057949432001/c616c9cd-8a3a-4bba-95d8-9a...	http/1.1
/image/v1/static/6057949432001/11e747a6-5586-46a4-8a29-c9...	http/1.1
/image/v1/static/6057949432001/2d65ae42-0aff-4e2c-b9ff-de...	http/1.1
/image/v1/static/6057949432001/8690c544-85dc-4fda-a818-7c...	http/1.1
/image/v1/static/6057949432001/9bc8fbfe-55e3-42b1-97e0-17...	http/1.1
/image/v1/static/6057949432001/e01d38dd-e954-432e-8105-90...	http/1.1
/image/v1/static/6057949432001/295d83b5-28c8-45b3-8d76-4e...	http/1.1
/image/v1/static/6057949432001/d92d46c1-ff89-4fd2-9557-b3...	http/1.1

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
www.formula1.com/assets/home/_next/static/css/eec7ae9d59a90f9a.css	10.8 KiB
www.formula1.com/assets/home/_next/static/css/464d8978cc0f4e83.css	13.3 KiB
www.formula1.com/assets/home/_next/static/css/adcd31a59e123143.css	21.3 KiB
www.formula1.com/s/fonts.css	973 B

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

Diagnostics

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

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 140 ms 936.0 KiB

URL	Transfer Size	Est Savings
www.formula1.com/assets/home/_next/static/chunks/785-aa4f3c926a14e678.js	429.1 KiB	342.6 KiB
www.formula1.com/assets/home/_next/static/chunks/b44ffc44-5babc187430cb039.js	169.7 KiB	140.2 KiB
/pagead/managed/js/gpt/m202604020101/pubads_impl.js	182.6 KiB	139.4 KiB
www.googletagmanager.com/gtm.js?id=GTM-K8R56M6&l=dataLayer	163.6 KiB	81.9 KiB
consent.formula1.com/Notice.8f529.js	90.9 KiB	62.3 KiB
www.formula1.com/assets/home/_next/static/chunks/6bdcba90-4f94600a7a96a195.js	75.1 KiB	61.5 KiB
www.formula1.com/assets/home/_next/static/chunks/74-1b0ad625aae7b57b.js	86.7 KiB	54.8 KiB
www.googletagmanager.com/gtm.js?id=GTM-NTR4PPW	162.9 KiB	53.3 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: 0.0 ms 10.1 KiB

URL	Transfer Size	Est Savings
www.formula1.com/assets/home/_next/static/css/eec7ae9d59a90f9a.css	10.2 KiB	10.1 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
/image/v1/static/6057949432001/0d611ea2-339f-40c9-ae19-8d...	511.3 KiB
/image/v1/static/6057949432001/f01261a7-0140-4c3a-b88f-96...	469.5 KiB
www.formula1.com/assets/home/_next/static/chunks/785-aa4f3c926a14e678.js	432.6 KiB
/image/v1/static/6057949432001/11e747a6-5586-46a4-8a29-c9...	394.7 KiB
/image/v1/static/6057949432001/9bc8fbfe-55e3-42b1-97e0-17...	361.9 KiB
/image/v1/static/6057949432001/c616c9cd-8a3a-4bba-95d8-9a...	353.6 KiB
/image/v1/static/6057949432001/e01d38dd-e954-432e-8105-90...	327.9 KiB
/image/v1/static/6057949432001/8690c544-85dc-4fda-a818-7c...	311.6 KiB
/assets/home/_next/static/media/DRS-G-2x~444bb8a2f38894fc...	291.5 KiB
/image/v1/static/6057949432001/d92d46c1-ff89-4fd2-9557-b3...	275.7 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
Tag Heuer `div.min-h-[56px] > div.flex > a > img.h-[28px]`	www.formula1.com/assets/home/_next/static/media/tagShield.fffe089e.svg
span.BundleHeader-module_buttons__67Qf9 > a.ImageButton-module_imagebutton__Y2vsW > span.ImageButton-module_inner__mVCHI > img `span.BundleHeader-module_buttons__67Qf9 > a.ImageButton-module_imagebutton__Y2vsW > span.ImageButton-module_inner__mVCHI > img`	/assets/home/_next/static/media/app-store~c48d2499a745551...
span.BundleHeader-module_buttons__67Qf9 > a.ImageButton-module_imagebutton__Y2vsW > span.ImageButton-module_inner__mVCHI > img `span.BundleHeader-module_buttons__67Qf9 > a.ImageButton-module_imagebutton__Y2vsW > span.ImageButton-module_inner__mVCHI > img`	/assets/home/_next/static/media/google-play~66d1792be650c...

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

●Max Potential First Input Delay 120 ms

●Layout shift culprits

●Document request latency

●Optimize DOM size

●LCP breakdown

●Optimize viewport for mobile

●Minify CSS

●Minify JavaScript

●JavaScript execution time 0.5 s

●Minimizes main-thread work 1.8 s

●Avoid long main-thread tasks 1 long task found

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 30 ms

●Server Backend Latencies 70 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 40 ms

●Avoid large layout shifts 12 layout shifts found

○INP breakdown

○User Timing marks and measures

100

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.

○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

●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

●`[role]` values are valid

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

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

●Buttons have an accessible name

●Image elements have `[alt]` attributes

●`[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 with `role="dialog"` or `role="alertdialog"` have accessible names.

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

●Elements use only permitted ARIA attributes

●Background and foreground colors have a sufficient contrast ratio

●Document has a `<title>` element

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

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

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

●Links have a discernible name

●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.

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

●Heading elements appear in a sequentially-descending order

●Skip links are focusable.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●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.

○`[accesskey]` values are unique

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

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○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

○`<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

○Form elements have associated labels

○Links are distinguishable without relying on color.

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

○`<object>` elements have alternate text

○Select elements have associated label elements.

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

○`<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.

○Elements with visible text labels have matching accessible names.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Source	Description
www.formula1.com/assets/home/_next/static/media/icon144x144.668d0c9a.png	`Failed to load resource: the server responded with a status of 404 ()`

Source maps translate minified code to the original source code. This helps developers debug in production. In addition, Lighthouse is able to provide further insights. Consider deploying source maps to take advantage of these benefits. Learn more about source maps.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL
www.formula1.com/assets/home/_next/static/chunks/b44ffc44-5babc187430cb039.js
www.formula1.com/assets/home/_next/static/chunks/785-aa4f3c926a14e678.js

●Uses HTTPS

●Avoids deprecated APIs

●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 issues in the `Issues` panel in Chrome Devtools

●Ensure CSP is effective against XSS attacks

●Ensure proper origin isolation with COOP

●Mitigate DOM-based XSS with Trusted Types

●Detected JavaScript libraries

○Redirects HTTP traffic to HTTPS

○Use a strong HSTS policy

○Mitigate clickjacking with XFO or CSP

100

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.

○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

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`