Lighthouse Mobile

· 0 checks — Mobile 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
connect.facebook.net/en_US/fbevents.js	1200.0 s	95.0 KiB
connect.facebook.net/en_US/fbevents.js	1200.0 s	95.0 KiB
cdn.dynamicyield.com/api/8773860/api_static.js	28800.0 s	103.5 KiB
/master.returngo.ai/returngo.min.js?shop=decathlon-usa.my...	600.0 s	47.7 KiB
/1773844786-app.decathlon-usa.myshopify.com.js?shop=decat...	3600.0 s	49.2 KiB
/signals/config/570343323462442?v=2.9.291&r=stable&domain...	1200.0 s	38.9 KiB
/signals/config/570343323462442?v=2.9.291&r=stable&domain...	1200.0 s	38.9 KiB
na.shgcdn3.com/pixel-collector.js?shop=decathlon-usa.myshopify.com	0.0 ms	26.6 KiB
cdn.9gtb.com/script.js?rev=9b8201f	86400.0 s	60.6 KiB
www.redditstatic.com/ads/pixel.js	60.0 s	19.0 KiB
cdn.aggle.net/oir/oir.min.js	0.0 ms	18.7 KiB
cdn.dynamicyield.com/api/8773860/api_dynamic.js	300.0 s	18.4 KiB
scripts.clarity.ms/0.8.59/clarity.js	86400.0 s	26.2 KiB
static.klaviyo.com/onsite/js/klaviyo.js?company_id=TEJqNp	1.0 s	2.7 KiB
static.klaviyo.com/onsite/js/TEJqNp/klaviyo.js?company_id=TEJqNp	1.0 s	2.4 KiB
/onsite/js/klaviyo.js?company_id=Uz9CmY&shop=decathlon-us...	1.0 s	2.4 KiB
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...	300.0 s	2.4 KiB
cdn.gethypervisual.com/assets/hypervisual.js?shop=decathlon-usa.myshopify.com	600.0 s	2.4 KiB
/onsite/js/klaviyo.js?company_id=TEJqNp&shop=decathlon-us...	1.0 s	2.1 KiB
content.9gtb.com/loader.js	86400.0 s	1.9 KiB
/loader.js?g_cvt_id=a110def0-d58e-4319-a849-6fd60afa15fe&...	86400.0 s	1.8 KiB
/rp.gif?ts=1775488094770&id=a2_efelxn60dde5&event=PageVis...	0.0 ms	637 B
shop.app/checkouts/internal/preloads.js?locale=en-US&shop_id=13306287	60.0 s	555 B
/tr/?id=570343323462442&ev=PageView&dl=https%3A%2F%2Fwww....	0.0 ms	19 B

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
cdn.rebuyengine.com/onsite/webfonts/fa-light-300.woff2	25 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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]

items: [map[reflowTime:293.318 source:map[column:10708 line:738 type:source-location url:https://assets.gorgias.chat/build/static/js/557.f9e30f4c6d8d87de.js urlProvider:network]]]

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

items: [map[reflowTime:154.97 source:map[column:13 line:25399 type:source-location url:https://www.decathlon.com/ urlProvider:network]] map[reflowTime:2.911 source:map[column:35004 line:0 type:source-location url:https://www.decathlon.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.3.1.min.js urlProvider:network]] map[reflowTime:204.32 source:map[type:text value:[unattributed]]] map[reflowTime:2.344 source:map[column:20289 line:0 type:source-location url:https://www.decathlon.com/cdn/shop/t/334/assets/global.js?v=7301445359237545521750076865 urlProvider:network]] map[reflowTime:0.413 source:map[column:36 line:19155 type:source-location url:https://www.decathlon.com/ urlProvider:network]] map[reflowTime:0.638 source:map[column:19372 line:0 type:source-location url: urlProvider:network]] map[reflowTime:0.695 source:map[column:2005 line:11 type:source-location url:https://cdn.nfcube.com/instafeed-8cf98a5a67967db58e071fdb98e726b4.js urlProvider:network]] map[reflowTime:2.693 source:map[column:11602 line:11 type:source-location url:https://cdn.nfcube.com/instafeed-8cf98a5a67967db58e071fdb98e726b4.js urlProvider:network]] map[reflowTime:3.014 source:map[column:19294 line:11 type:source-location url:https://cdn.nfcube.com/instafeed-8cf98a5a67967db58e071fdb98e726b4.js urlProvider:network]] map[reflowTime:73.947 source:map[column:2622 line:0 type:source-location url:https://static.klaviyo.com/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae9159db809c1b007/default~in_app_forms~signup_forms.a9953a1681e0d8106e3e.js?cb=2 urlProvider:network]] map[reflowTime:293.318 source:map[column:10896 line:737 type:source-location url:https://assets.gorgias.chat/build/static/js/557.f9e30f4c6d8d87de.js urlProvider:network]] map[reflowTime:121.33 source:map[column:31518 line:1 type:source-location url:https://scripts.clarity.ms/0.8.59/clarity.js urlProvider:network]]]

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.

More than 4 preconnect connections were found. These should be used sparingly and only to the most important origins.

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

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

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
cdn.dynamicyield.com/api/8773860/api_dynamic.js	18.4 KiB	1.5 s
cdn.dynamicyield.com/api/8773860/api_static.js	103.5 KiB	828 ms
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...	2.4 KiB

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
Person practicing martial arts outdoors `section.dkt-img-txt__container > div.dkt-img-txt__grid > div.dkt-img-txt__image2 > img.dkt-img-txt__photo`	/s/files/1/1752/4727/files/aed8431ee8fdbf4506d5b02b5d64a5...	1.1 MiB	1.1 MiB
Two hikers with a dog on a forest trail `section.dkt-img-txt__container > div.dkt-img-txt__grid > div.dkt-img-txt__image1 > img.dkt-img-txt__photo`	/s/files/1/1752/4727/files/85a230de3b02930762d96f52e27304...	1.0 MiB	1.0 MiB
Trending Now `div.dkt-stepper-carousel__products-carousel > div.dkt-stepper-carousel__card-wrapper > div.testing-div > img.testing-img`	/cdn/shop/files/8852483-context_image-p2589780.jpg?v=1749...	179.7 KiB	139.5 KiB
Most Popular `div.dkt-stepper-carousel__products-carousel > div.dkt-stepper-carousel__card-wrapper > div.testing-div > img.testing-img`	/cdn/shop/files/8595408-context_image-p2738017.jpg?v=1757...	193.5 KiB	66.6 KiB
Adventure Ready `div.dkt-stepper-carousel__products-carousel > div.dkt-stepper-carousel__card-wrapper > div.testing-div > img.testing-img`	/cdn/shop/files/8505871-context_image-p1832966.jpg?v=1723...	86.8 KiB	46.5 KiB
Staff Pick `div.dkt-stepper-carousel__products-carousel > div.dkt-stepper-carousel__card-wrapper > div.testing-div > img.testing-img`	/cdn/shop/files/8736386-context_image-p2355234.jpg?v=1753...	106.8 KiB	36.2 KiB
Cycling `div.dkt-categories__grid > a#category-image-url_7n8B9L > div.dkt-categories__icon > img`	www.decathlon.com/cdn/shop/files/Cycling-Icon.png?v=1750234439	37.2 KiB	36.1 KiB
Most Popular `div.dkt-stepper-carousel__products-carousel > div.dkt-stepper-carousel__card-wrapper > div.testing-div > img.testing-img`	/cdn/shop/files/8787845-context_image-p2481988.jpg?v=1756...	103.2 KiB	35.0 KiB
Camping `div.dkt-categories__grid > a#category-image-url_Y3NqbD > div.dkt-categories__icon > img`	www.decathlon.com/cdn/shop/files/tent.png?v=1750233125	22.7 KiB	22.0 KiB
Running `div.dkt-categories__grid > a#category-image-url_Rqf4YT > div.dkt-categories__icon > img`	www.decathlon.com/cdn/shop/files/backpack.png?v=1750233169	20.0 KiB	19.4 KiB
Hiking & Backpacking `div.dkt-categories__grid > a#category-image-url_HnTFYn > div.dkt-categories__icon > img`	/cdn/shop/files/FORCLAZ_SAD_H_MT_100_EASYFIT_70L_OCRE_-_8...	11.0 KiB	10.2 KiB
Snow & Ski `div.dkt-categories__grid > a#category-image-url_LJeHTE > div.dkt-categories__icon > img`	/cdn/shop/files/WEDZE_MOUFLES_SKI_100_NOIR_AH25_-_8562903...	7.6 KiB	6.9 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.

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 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: 980 ms 772.1 KiB

URL	Transfer Size	Est Savings
cdn.rebuyengine.com/onsite/js/global.js?build=1775244697	220.0 KiB	111.2 KiB
www.googletagmanager.com/gtag/js?id=GT-MJWCF3J&cx=c&gtm=4e6411	135.0 KiB	104.2 KiB
cdn.rebuyengine.com/onsite/js/vendors.js?id=0b003f48048b80a12360	77.4 KiB	77.1 KiB
cdn.dynamicyield.com/api/8773860/api_static.js	103.0 KiB	68.9 KiB
www.googletagmanager.com/gtag/js?id=GT-MJWCF3J	135.0 KiB	63.6 KiB
www.googletagmanager.com/gtag/js?id=G-NQJCP882N4	172.7 KiB	62.2 KiB
/master.returngo.ai/returngo.min.js?shop=decathlon-usa.my...	47.2 KiB	41.9 KiB
assets.gorgias.chat/build/static/js/279.58c6a32e6ae4fc54.js	92.4 KiB	41.3 KiB
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	51.5 KiB	37.3 KiB
cdn.9gtb.com/script.js?rev=9b8201f	59.8 KiB	32.0 KiB
connect.facebook.net/en_US/fbevents.js	94.8 KiB	32.0 KiB
/extensions/019d4564-8f2b-76f2-bacb-5853de1a7cf8/restockr...	38.7 KiB	30.3 KiB
www.decathlon.com/cdn/wpm/b98d3e97aw95287a42p6e310ef5m9f58c5a0m.js	57.1 KiB	23.9 KiB
cdn.rebuyengine.com/onsite/js/SmartCartV2.js?id=465f209093e9ad96fcdc	41.3 KiB	23.4 KiB
cdn.rebuyengine.com/onsite/js/vendor-jquery.js?id=f643b7c5754fea9c562c	31.8 KiB	22.7 KiB

Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URL	Total CPU Time	Script Evaluation	Script Parse
www.decathlon.com/	5.2 s	442 ms	72 ms
Unattributable	3.4 s	267 ms	0.0 ms
cdn.rebuyengine.com/onsite/js/rebuy.js?shop=decathlon-usa.myshopify.com	1.8 s	987 ms	739 ms
cdn.dynamicyield.com/api/8773860/api_static.js	1.6 s	552 ms	60 ms
cdn.rebuyengine.com/onsite/js/vendors.js?id=0b003f48048b80a12360	1.5 s	686 ms	44 ms
scripts.clarity.ms/0.8.59/clarity.js	1.0 s	917 ms	14 ms
cdn.rebuyengine.com/onsite/js/global.js?build=1775244697	958 ms	755 ms	113 ms
www.decathlon.com/cdn/wpm/b98d3e97aw95287a42p6e310ef5m9f58c5a0m.js	938 ms	732 ms	27 ms
assets.gorgias.chat/build/static/js/557.f9e30f4c6d8d87de.js	744 ms	642 ms	20 ms
www.googletagmanager.com/gtag/js?id=G-NQJCP882N4	646 ms	552 ms	86 ms
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	642 ms	422 ms	7.7 ms
cdn.rebuyengine.com/onsite/js/vendor-jquery.js?id=f643b7c5754fea9c562c	606 ms	99 ms	16 ms
assets.gorgias.chat/build/static/js/279.58c6a32e6ae4fc54.js	565 ms	515 ms	43 ms
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	554 ms	226 ms	35 ms
/st?sec=8773860&ref=&scriptVersion=2.83.0&inHead=true&id=...	530 ms	477 ms	9.4 ms
/cdn/shopifycloud/shop-js/modules/v2/chunk.index_4uAqGWkW...	447 ms	263 ms	1.2 ms
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	444 ms	137 ms	7.7 ms
assets.gorgias.chat/build/static/js/122.39fb0f07764c9f4b.js	428 ms	414 ms	10 ms
/cdn/s/trekkie.storefront.793024e5c781b83428b9784ec5054da...	428 ms	261 ms	18 ms
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	407 ms	280 ms	5.6 ms
/public/js/main.js?shop=decathlon-usa.myshopify.com&17322...	401 ms	83 ms	31 ms
www.googletagmanager.com/gtag/js?id=GT-MJWCF3J	354 ms	269 ms	81 ms
/cdn/shopifycloud/storefront/assets/shop_events_listener-...	308 ms	288 ms	2.2 ms
connect.facebook.net/en_US/fbevents.js	260 ms	199 ms	59 ms
www.decathlon.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.3.1.min.js	250 ms	214 ms	16 ms
/web-pixels@98d3e97aw95287a42p6e310ef5m9f58c5a0/app/web-p...	213 ms	202 ms	3.7 ms
/signals/config/570343323462442?v=2.9.291&r=stable&domain...	197 ms	169 ms	25 ms
/instafeed-8cf98a5a67967db58e071fdb98e726b4.js?shop=decat...	193 ms	147 ms	9.0 ms
cdn.rebuyengine.com/onsite/js/SmartBanner.js?id=00345317d6fa37d32714	148 ms	138 ms	1.1 ms
cdn.nfcube.com/instafeed-8cf98a5a67967db58e071fdb98e726b4.js	148 ms	102 ms	9.1 ms
cdn.rebuyengine.com/onsite/js/vendor-splidejs.js?id=cd4950802eaac35ce58a	129 ms	66 ms	7.5 ms
cdn.9gtb.com/script.js?rev=9b8201f	128 ms	97 ms	29 ms
cdn.dynamicyield.com/api/8773860/api_dynamic.js	116 ms	83 ms	32 ms
/cdn/shopifycloud/storefront/assets/storefront/load_featu...	114 ms	110 ms	3.2 ms
na.shgcdn3.com/pixel-collector.js?shop=decathlon-usa.myshopify.com	109 ms	94 ms	14 ms
/1773844786-app.decathlon-usa.myshopify.com.js?shop=decat...	105 ms	69 ms	35 ms
/extensions/019d4564-8f2b-76f2-bacb-5853de1a7cf8/restockr...	103 ms	70 ms	31 ms
/gorgias-chat-bundle.js?rev=502ce27c&appKey=01GYCBSN7PHYA...	102 ms	48 ms	5.4 ms
www.decathlon.com/cdn/shop/t/334/assets/global.js?v=7301445359237545521750076865	98 ms	32 ms	16 ms
cdn.aggle.net/oir/oir.min.js	97 ms	84 ms	9.3 ms
www.googletagmanager.com/gtag/js?id=GT-MJWCF3J&cx=c&gtm=4e6411	94 ms	35 ms	58 ms
/cdn/shopifycloud/consent-tracking-api/v0.1/consent-track...	92 ms	87 ms	0.4 ms
/cdn/shopifycloud/storefront/assets/shopify_pay/storefron...	92 ms	78 ms	13 ms
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	84 ms	74 ms	9.4 ms
/0/js/scripttags/decathlon-usa/country_redirect_e7551f25b...	84 ms	56 ms	21 ms
/extensions/019d4ca2-a46b-72d1-ac1c-31ca06f3de4e/dynamic-...	81 ms	77 ms	3.6 ms
/onsite/js/build-preview/commit-f6f00cac0c842ff6b918911ae...	74 ms	72 ms	1.3 ms
/web-pixels@98d3e97aw95287a42p6e310ef5m9f58c5a0/app/web-p...	70 ms	67 ms	1.9 ms
assets.gorgias.chat/build/static/js/vendor-react-core.820de3d88eb95c8f.js	59 ms	16 ms	20 ms
/cdn/shopifycloud/shop-js/modules/v2/chunk.useEventListen...	55 ms	52 ms	0.1 ms
backinstock.useamp.com/widget/11152_1770057638.js?category=bis&v=6	54 ms	13 ms	40 ms
/master.returngo.ai/returngo.min.js?shop=decathlon-usa.my...	50 ms	21 ms	28 ms

Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work

Why this matters

Performance issues directly impact user engagement and conversion rates.

Category	Time Spent
Script Evaluation	15.1 s
Style & Layout	5.8 s
Other	5.3 s
Script Parsing & Compilation	2.2 s
Rendering	761 ms
Parse HTML & CSS	602 ms
Garbage Collection	378 ms

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 3.6 KiB

URL	Transfer Size	Est Savings
.esc-size-guide--popup .modal_background{background:#000;cursor:pointer;height:100%;left:0; … } …	5.0 KiB	3.6 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 18.7 KiB

URL	Transfer Size	Est Savings
/public/js/main.js?shop=decathlon-usa.myshopify.com&17322...	36.9 KiB	18.7 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 16.6 KiB

URL	Transfer Size	Est Savings
cdn.rebuyengine.com/onsite/css/global.min.css?build=1775244697	18.1 KiB	16.6 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
www.decathlon.com/cdn/shop/files/Mountains.jpg?v=1750077893	1.3 MiB
/s/files/1/1752/4727/files/aed8431ee8fdbf4506d5b02b5d64a5...	1.1 MiB
/s/files/1/1752/4727/files/85a230de3b02930762d96f52e27304...	1.0 MiB
/cdn/shopifycloud/checkout-web/assets/c1/hooks-useHasOrde...	345.7 KiB
cdn.rebuyengine.com/onsite/js/global.js?build=1775244697	220.8 KiB
/cdn/shop/files/8595408-context_image-p2738017.jpg?v=1757...	194.3 KiB
cdn.rebuyengine.com/onsite/webfonts/fa-light-300.woff2	185.8 KiB
/cdn/shop/files/8852483-context_image-p2589780.jpg?v=1749...	180.6 KiB
www.googletagmanager.com/gtag/js?id=G-NQJCP882N4	173.1 KiB
www.googletagmanager.com/gtag/js?id=G-NQJCP882N4&cx=c&gtm=4e6411	172.8 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
Two hikers with a dog on a forest trail `section.dkt-img-txt__container > div.dkt-img-txt__grid > div.dkt-img-txt__image1 > img.dkt-img-txt__photo`	/s/files/1/1752/4727/files/85a230de3b02930762d96f52e27304...
Person practicing martial arts outdoors `section.dkt-img-txt__container > div.dkt-img-txt__grid > div.dkt-img-txt__image2 > img.dkt-img-txt__photo`	/s/files/1/1752/4727/files/aed8431ee8fdbf4506d5b02b5d64a5...
{unspecified-8735937} Black backpack with 'FORCLAZ' brand logo on a white bac… `div#splide01-slide01 > div.rebuy-product-media > a.rebuy-product-image > img`	/s/files/1/1330/6287/files/8735937-product_image-p2479884...
{asphalt-blue-8731516} `div#splide01-slide02 > div.rebuy-product-media > a.rebuy-product-image > img`	/s/files/1/1330/6287/files/8731516-product_image-p2583621...
{asphalt-blue-8858286} `div#splide01-slide03 > div.rebuy-product-media > a.rebuy-product-image > img`	/s/files/1/1330/6287/files/8858286-product_image-p2688048...

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

●LCP breakdown

●LCP request discovery

●Modern HTTP

●Optimize viewport for mobile

●User Timing marks and measures 57 user timings

●Avoid long main-thread tasks 20 long tasks found

●Avoid non-composited animations 1 animated element found

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 160 ms

●Server Backend Latencies 130 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 70 ms

○INP breakdown

○Avoid large layout shifts

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
High-Performance Products For Everyone `section.dkt-img-txt__container > div.dkt-img-txt__grid > div.dkt-img-txt__title > h1.dkt-img-txt__heading`
At Decathlon, we believe in making sports accessible to everyone, everywhere. W… `section.dkt-img-txt__container > div.dkt-img-txt__grid > div.dkt-img-txt__text-content > p.dkt-img-txt__paragraph`
4.6 `div.card__title-rating-wrapper > div.rating > p.rating-text > span`
$149.00 `div.price > div.price__container > div.price__regular > span.price-item`
4.6 `div.card__title-rating-wrapper > div.rating > p.rating-text > span`
$179.00 `div.price > div.price__container > div.price__regular > span.price-item`
4.6 `div.card__title-rating-wrapper > div.rating > p.rating-text > span`
$119.00 `div.price > div.price__container > div.price__regular > span.price-item`
17 `slider-component.slider-mobile-gutter > div.slider-buttons > div.slider-counter > span.slider-counter--total`
Follow Us @DecathlonUSA `div.page-width > div#shopify-block-AZEtxU2xkNFpCL2tha__instafeed_app_block_GFLUUH > div#insta-feed > h2`
Terms of Service `div.dkt-footer__container > div.dkt-footer__bottom-bar > div.dkt-footer__legal-links > a`
Shipping Policy `div.dkt-footer__container > div.dkt-footer__bottom-bar > div.dkt-footer__legal-links > a`
Supply Chain Disclosure `div.dkt-footer__container > div.dkt-footer__bottom-bar > div.dkt-footer__legal-links > a`
Privacy Policy `div.dkt-footer__container > div.dkt-footer__bottom-bar > div.dkt-footer__legal-links > a`
Decathlon Accessibility Statement `div.dkt-footer__container > div.dkt-footer__bottom-bar > div.dkt-footer__legal-links > a`
Product Recalls `div.dkt-footer__container > div.dkt-footer__bottom-bar > div.dkt-footer__legal-links > a`
Select Your Country `div.spicegems_cr_modal-dialog > div.spicegems_cr_modal-content > div.spicegems_cr_modal-footer > a#spicegems_cr_btn_yes`
Stay on U.S. Site `div.spicegems_cr_modal-dialog > div.spicegems_cr_modal-content > div.spicegems_cr_modal-footer > a#spicegems_cr_btn_no`

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Kiprun Ultra-Light 5-Panel Running Cap `div.card__content > div.card__information > div.card-information > h3#title-template--16865945452606__dkt_stepper_carousel_XhgFrD-7774402576446`

These are opportunities to improve keyboard navigation in your application.

○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]` 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

●Form elements have associated labels

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

●`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

●Elements use only permitted ARIA attributes

●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.

●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

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

●Touch targets have sufficient size and spacing.

●Document has a main landmark.

●Deprecated ARIA roles were not used

●ARIA IDs are unique

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

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○ARIA input fields have accessible names

○ARIA `meter` elements have accessible names

○ARIA `progressbar` elements have accessible names

○`[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

○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.

○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

○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
AttributionReporting	connect.facebook.net/en_US/fbevents.js line 273, col 769

●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 DOM-based XSS with Trusted Types

●Detected JavaScript libraries

●Page has valid source maps

○Redirects HTTP traffic to HTTPS

○Mitigate clickjacking with XFO or CSP

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
Select Your Country `div.spicegems_cr_modal-dialog > div.spicegems_cr_modal-content > div.spicegems_cr_modal-footer > a#spicegems_cr_btn_yes`
Stay on U.S. Site `div.spicegems_cr_modal-dialog > div.spicegems_cr_modal-content > div.spicegems_cr_modal-footer > a#spicegems_cr_btn_no`

To appear in search results, crawlers need access to your app.

○Structured data is valid

●Page isn’t blocked from indexing

●Document has a `<title>` element

●Page has successful HTTP status code

●Links have descriptive text

●robots.txt is valid

●Image elements have `[alt]` attributes

●Document has a valid `hreflang`

●Document has a valid `rel=canonical`