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
/static/bellotti/playcard/_reco/public/180ba9b95e2f7d6c7d...	589.0 s	159.5 KiB
/ESWWebSpanishGuest1710551531643/assets/styles/salesforce...	13.0 s	102.0 KiB
www.nike.com/_next/static/chunks/pages/_app-3c18c220996fff23.js	630.0 s	99.3 KiB
/static/cssf/async-chat/_reco/public/5b29be0fed8a7cf7a2bb...	605.0 s	90.4 KiB
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	861.0 s	81.7 KiB
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	77.0 s	71.5 KiB
www.nike.com/_next/static/chunks/864-340035b9ccf95bac.js	607.0 s	72.0 KiB
www.nike.com/static/analytics-client/public/5169.chunk.85d010.js	451.0 s	67.7 KiB
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	123.0 s	57.4 KiB
www.nike.com/static/uxf/web-shell-client/3.1.0/329.chunk.4ef61d.js	398.0 s	59.3 KiB
/static/dotcom-privacy/mfe-privacy-consent/_reco/public/0...	448.0 s	59.8 KiB
/static/dotcom-privacy/mfe-inline-cookie/_reco/public/8bd...	87.0 s	54.7 KiB
www.nike.com/_next/static/chunks/pages/%5B%5B...page%5D%5D-3dad83b37ff91285.js	657.0 s	54.1 KiB
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	77.0 s	41.7 KiB
/static/uxf/error-modal/_reco/public/2d4f2410b5481d5c079a...	36.0 s	33.3 KiB
www.nike.com/_next/static/chunks/main-a7f01d63ac8a31ce.js	813.0 s	36.6 KiB
www.nike.com/static/ncss/5.0/dotcom/fonts/HelveticaNowDisplayMedium.woff2	46509.0 s	59.7 KiB
www.nike.com/static/ncss/5.0/dotcom/fonts/HelveticaNowText.woff2	25860.0 s	47.6 KiB
www.nike.com/static/analytics-client/public/analytics-client.min.js	425.0 s	28.7 KiB
/ESWWebSpanishGuest1710551531643/assets/js/bootstrap.min.js	23.0 s	26.4 KiB
www.nike.com/static/ncss/5.0/dotcom/fonts/HelveticaNowTextMedium.woff2	47381.0 s	50.5 KiB
www.nike.com/static/analytics-client/public/568.chunk.e10e85.js	450.0 s	25.7 KiB
www.nike.com/static/experience/shop-components/public/821.chunk.e3bdc4.js	71.0 s	22.1 KiB
www.nike.com/static/ncss/5.0/dotcom/fonts/Nike-Futura.woff2	14649.0 s	24.9 KiB
www.nike.com/static/ncss/5.0/dotcom/desktop/css/ncss.es-es.min.css	254.0 s	17.5 KiB
www.nike.com/static/privacy-core/public/privacy-core.js	474.0 s	16.1 KiB
www.nike.com/static/ncss/5.0/dotcom/fonts/Nike-Futura-ot-300.woff2	50137.0 s	29.1 KiB
www.nike.com/_next/static/chunks/987e2f2b645f4aa9.css	621.0 s	13.8 KiB
www.nike.com/assets/measure/data-capture/mc.js	551.0 s	12.0 KiB
www.nike.com/static/experience/shop-components/public/35.chunk.e510e7.js	259.0 s	10.8 KiB
www.nike.com/static/uxf/web-shell-client/v1/bundle.umd.js	87.0 s	10.0 KiB
www.nike.com/static/analytics-client/public/config.chunk.bfa8b2.js	455.0 s	9.4 KiB
/static/experience/shop-components/public/getFetchCartOpt...	161.0 s	8.9 KiB
/static/experience/shop-components/public/bootstrap-nike-...	621.0 s	9.4 KiB
/static/experience/shop-components/public/npm.emotion-51c...	249.0 s	8.3 KiB
/static/experience/shop-components/public/npm.nike-f4caa9...	288.0 s	7.6 KiB
www.nike.com/_next/static/chunks/739.cbc3e3ac6a649ed4.js	618.0 s	7.8 KiB
/static/experience/shop-components/public/npm.nike-a49e0a...	833.0 s	7.9 KiB
www.nike.com/static/experience/shop-components/public/npm.buffer.chunk.cf5764.js	259.0 s	6.8 KiB
/static/experience/shop-components/public/npm.nike-3ce1ee...	247.0 s	6.3 KiB
/static/experience/shop-components/public/npm.nike-461a4b...	830.0 s	6.6 KiB
www.nike.com/static/experience/shop-components/public/nike-shop-client.js	163.0 s	5.9 KiB
www.nike.com/static/experience/shop-components/public/npm.qs.chunk.4de095.js	154.0 s	5.9 KiB
www.nike.com/static/experience/shop-components/public/npm.zipkin.chunk.2699f7.js	803.0 s	6.1 KiB
www.nike.com/static/analytics-client/public/web.chunk.470429.js	451.0 s	5.8 KiB
/static/experience/shop-components/public/npm.tanstack-6a...	254.0 s	5.4 KiB
/static/experience/shop-components/public/npm.nike-4ebea4...	174.0 s	5.0 KiB
/static/experience/shop-components/public/npm.tanstack-1f...	246.0 s	5.0 KiB
www.nike.com/static/analytics-client/public/9970.chunk.5cf733.js	448.0 s	5.1 KiB
/static/experience/shop-components/public/npm.tanstack-4c...	34.0 s	4.1 KiB
/static/experience/shop-components/public/npm.tanstack-cc...	228.0 s	4.2 KiB
/static/experience/shop-components/public/npm.tanstack-02...	246.0 s	3.8 KiB
/static/experience/shop-components/public/ProductAddedMod...	493.0 s	3.9 KiB
/static/experience/shop-components/public/ProductAddedMod...	261.0 s	3.7 KiB
/static/experience/shop-components/public/npm.emotion-a41...	258.0 s	3.7 KiB
s.go-mpulse.net/boomerang/AERUL-JUD3H-8RUDQ-SABVF-2UCEG?20200601	604800.0 s	34.5 KiB
www.nike.com/static/experience/shop-components/public/636.chunk.adb8dd.js	821.0 s	3.8 KiB
www.nike.com/_next/static/chunks/webpack-2222dbfc996962f9.js	614.0 s	3.5 KiB
/static/experience/shop-components/public/WishlistItemAdd...	568.0 s	3.1 KiB
/ESWWebSpanishGuest1710551531643/assets/js/inert.min.js	12.0 s	2.7 KiB
/ESWWebSpanishGuest1710551531643/assets/styles/bootstrap....	33.0 s	2.7 KiB
www.nike.com/_next/static/chunks/43b4c57a22e14da7.css	374.0 s	2.3 KiB
www.nike.com/static/experience/shop-components/public/459.chunk.0323dd.js	621.0 s	2.2 KiB
/static/experience/experimentation-eng/gridiron/no-consen...	601.0 s	1.9 KiB
/ESWWebSpanishGuest1710551531643/assets/js/sitecontext.mi...	18.0 s	1.6 KiB
www.nike.com/assets/ncss/glyphs/2.6/css/glyphs.min.css	607.0 s	1.6 KiB
/static/experience/shop-components/public/supportedMarket...	568.0 s	1.5 KiB
www.nike.com/_next/static/chunks/framework-f3e79eb3607634e0.js	441.0 s	1.4 KiB
www.nike.com/_next/static/TMcr2p2Xy5JnbgxACxe4z/_buildManifest.js	616.0 s	1.2 KiB
www.nike.com/_next/static/TMcr2p2Xy5JnbgxACxe4z/_ssgManifest.js	605.0 s	1.1 KiB
/ESWWebSpanishGuest1710551531643/assets/styles/embedded-m...	27.0 s	769 B
/ESWWebSpanishGuest1710551531643/webruntime/component/259...	2247703.0 s	1.9 KiB

Layout shifts occur when elements move absent any user interaction. Investigate the causes of layout shifts, such as elements being added, removed, or their fonts changing as the page loads.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]

items: [map[node:map[type:text value:Total] score:0.41635300000000003] map[node:map[boundingRect:map[bottom:674 height:209 left:48 right:1350 top:465 width:1302] lhId:page-18-DIV nodeLabel:Pegasus 42 POTENCIA TOTAL Siente la potencia de la unidad Air Zoom curvada co… path:1,HTML,1,BODY,13,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV,1,DIV selector:div._3w5yTWne > div._3gp3Wlmq > div.JP66kT9q > div._13xDDA0A snippet:<div class="_13xDDA0A _2n345FhB _1uUVQf9l" data-qa="card-overlay"> type:node] score:0.415957] map[node:map[boundingRect:map[bottom:36 height:36 left:911 right:1302 top:0 width:391] lhId:page-13-UL nodeLabel:Buscar una tienda Ayuda Únete a nosotros Iniciar sesión path:1,HTML,1,BODY,12,DIV,0,DIV,0,NAV,1,DIV,0,DIV,1,DIV,0,NAV,0,UL selector:div.nds-grid > div.user-menu-wrapper > nav.nav-css-12b3723 > ul.desktop-list snippet:<ul class="desktop-list"> type:node] score:0.000396]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.nike.com/static/ncss/5.0/dotcom/fonts/HelveticaNowText.woff2	75 ms
www.nike.com/static/ncss/5.0/dotcom/fonts/HelveticaNowTextMedium.woff2	70 ms
www.nike.com/static/ncss/5.0/dotcom/fonts/Nike-Futura-ot-300.woff2	25 ms
www.nike.com/static/ncss/5.0/dotcom/fonts/HelveticaNowDisplayMedium.woff2	20 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

	URL	Resource Size	Est Savings
Entrena bien, Nike Free Metcon 7 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_932,c_limit/73756532-3...	33.9 KiB	18.8 KiB
Above the Influence, Air Max 95 "Pink Foam" `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_931,c_limit/2067c6da-a...	33.9 KiB	18.8 KiB
Creadas por atletas. Diseñadas para destacar., Nike United `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_932,c_limit/82956428-9...	29.8 KiB	16.5 KiB
Compra nuestros iconos, Nike. Just Do It, slide 6 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/6563d85b-8...	15.6 KiB	7.3 KiB
Compra nuestros iconos, Nike. Just Do It, slide 9 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/a9cebb9e-1...	15.3 KiB	7.1 KiB
Compra nuestros iconos, Nike. Just Do It, slide 4 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/02c122bf-c...	14.3 KiB	6.7 KiB
Compra nuestros iconos, Nike. Just Do It, slide 2 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/7cc8d3dc-5...	12.8 KiB	5.9 KiB
Compra nuestros iconos, Nike. Just Do It, slide 3 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/e9097b94-c...	12.0 KiB	5.6 KiB
Compra nuestros iconos, Nike. Just Do It, slide 5 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/0ddf45b9-c...	11.7 KiB	5.4 KiB
Compra nuestros iconos, Nike. Just Do It, slide 8 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/8121a303-0...	11.0 KiB	5.1 KiB
Compra nuestros iconos, Nike. Just Do It, slide 1 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/b5449146-c...	10.8 KiB	5.0 KiB
Compra nuestros iconos, Nike. Just Do It, slide 7 of 9 `div.WetubkUi > div.l01-Jx1P > div > img._32IPZERI`	/a/images/f_auto/dpr_1.0,cs_srgb/h_410,c_limit/276822a0-2...	10.5 KiB	4.9 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-12-DIV

nodeLabel: div.l01-Jx1P > div.rvp-video-root > div#vjs_video_3 > div.vjs-poster

path: 1,HTML,1,BODY,13,DIV,0,DIV,0,DIV,1,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,DIV

selector: div.l01-Jx1P > div.rvp-video-root > div#vjs_video_3 > div.vjs-poster

snippet: <div class="vjs-poster" tabindex="-1" aria-disabled="false" style="background-image: url("https://static.nike.com/a/images/f_auto,cs_srgb/w_1…");">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

title: Preconnected origins

value: no origins were preconnected

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

title: Preconnect candidates

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
static-assets.nike.com/video-player/2.2.0/nike-one-video-player.min.js	191.1 KiB	322 ms
www.nike.com/assets/vendor/react/18.3.1/react.production.min.js	4.9 KiB
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	81.7 KiB	163 ms
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	41.7 KiB
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	71.5 KiB
www.nike.com/assets/vendor/react-dom/18.3.1/react-dom.production.min.js	42.7 KiB	82 ms
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	57.4 KiB	122 ms
www.nike.com/assets/vendor/@emotion/core/10.3.1/core.umd.min.js	7.3 KiB
www.nike.com/assets/vendor/@emotion/styled-base/10.3.0/styled-base.umd.min.js	5.2 KiB
www.nike.com/assets/vendor/@emotion/styled/10.3.0/styled.umd.min.js	5.6 KiB
static-assets.nike.com/video-player/2.2.0/nike-one-video-player.min.css	16.5 KiB	259 ms
www.nike.com/static/privacy-core/public/privacy-core.js	16.1 KiB
www.nike.com/static/uxf/web-shell-client/v1/bundle.umd.js	10.0 KiB
www.nike.com/static/analytics-client/public/analytics-client.min.js	28.7 KiB	82 ms
/static/experience/experimentation-eng/gridiron/no-consen...	1.9 KiB
www.nike.com/static/ncss/5.0/dotcom/desktop/css/ncss.es-es.min.css	17.5 KiB	82 ms
www.nike.com/assets/ncss/glyphs/2.6/css/glyphs.min.css	1.6 KiB

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 493 ms

URL	Time Spent
nike.com/	244 ms
www.nike.com/	248 ms
www.nike.com/es/	0.0 ms

These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS

Why this matters

Performance issues directly impact user engagement and conversion rates.

Element	Layout shift score
Pegasus 42 POTENCIA TOTAL Siente la potencia de la unidad Air Zoom curvada co… `div._3w5yTWne > div._3gp3Wlmq > div.JP66kT9q > div._13xDDA0A`	0.416
Buscar una tienda Ayuda Únete a nosotros Iniciar sesión `div.nds-grid > div.user-menu-wrapper > nav.nav-css-12b3723 > ul.desktop-list`	0.000

Time to Interactive is the amount of time it takes for the page to become fully interactive. Learn more about the Time to Interactive metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

The maximum potential First Input Delay that your users could experience is the duration of the longest task. Learn more about the Maximum Potential First Input Delay metric.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 40 ms 99.9 KiB

URL	Transfer Size	Est Savings
*:where(.pds--globals) { box-sizing: border-box; margin: 0; } …	60.9 KiB	59.0 KiB
static-assets.nike.com/video-player/2.2.0/nike-one-video-player.min.css	16.2 KiB	15.8 KiB
www.nike.com/static/ncss/5.0/dotcom/desktop/css/ncss.es-es.min.css	16.7 KiB	13.8 KiB
www.nike.com/_next/static/chunks/987e2f2b645f4aa9.css	12.9 KiB	11.3 KiB

Reduce unused JavaScript and defer loading scripts until they are required to decrease bytes consumed by network activity. Learn how to reduce unused JavaScript.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 360 ms 441.3 KiB

URL	Transfer Size	Est Savings
static-assets.nike.com/video-player/2.2.0/nike-one-video-player.min.js	188.5 KiB	83.2 KiB
/static/bellotti/playcard/_reco/public/180ba9b95e2f7d6c7d...	158.8 KiB	76.8 KiB
/static/cssf/async-chat/_reco/public/5b29be0fed8a7cf7a2bb...	89.5 KiB	55.0 KiB
www.nike.com/static/uxf/web-shell-client/3.1.0/329.chunk.4ef61d.js	58.6 KiB	49.2 KiB
www.nike.com/_next/static/chunks/pages/_app-3c18c220996fff23.js	98.3 KiB	45.6 KiB
www.nike.com/_next/static/chunks/864-340035b9ccf95bac.js	71.0 KiB	32.5 KiB
/static/uxf/dotcom-nav-v3/packages/header-footer-renderer...	80.7 KiB	29.7 KiB
/static/dotcom-privacy/mfe-inline-cookie/_reco/public/8bd...	54.0 KiB	24.0 KiB
/static/uxf/error-modal/_reco/public/2d4f2410b5481d5c079a...	32.6 KiB	23.9 KiB
www.nike.com/_next/static/chunks/pages/%5B%5B...page%5D%5D-3dad83b37ff91285.js	53.1 KiB	21.3 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
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	739 ms	672 ms	12 ms
www.nike.com/assets/vendor/react/18.3.1/react.production.min.js	661 ms	585 ms	0.3 ms
www.nike.com/es/	451 ms	161 ms	18 ms
Unattributable	249 ms	63 ms	0.2 ms
www.nike.com/static/analytics-client/public/5169.chunk.85d010.js	142 ms	128 ms	7.3 ms
www.nike.com/_next/static/chunks/739.cbc3e3ac6a649ed4.js	118 ms	20 ms	0.5 ms
static-assets.nike.com/video-player/2.2.0/nike-one-video-player.min.js	104 ms	43 ms	18 ms
js-agent.newrelic.com/nr-spa-1.312.1.min.js	89 ms	72 ms	2.4 ms
/static/bellotti/playcard/_reco/public/180ba9b95e2f7d6c7d...	64 ms	40 ms	15 ms
/static/cssf/async-chat/_reco/public/5b29be0fed8a7cf7a2bb...	53 ms	45 ms	5.8 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	2.2 s
Other	417 ms
Style & Layout	231 ms
Script Parsing & Compilation	186 ms
Rendering	60 ms
Garbage Collection	43 ms
Parse HTML & CSS	41 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 42.4 KiB

URL	Transfer Size	Est Savings
*:where(.pds--globals) { box-sizing: border-box; margin: 0; } …	60.9 KiB	42.4 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
/video/f6407733e105cfc1/f6407733e105cfc1video_3_000000001...	2.2 MiB
/video/64bbda1cd0c88e86/64bbda1cd0c88e86video_3_000000001...	1.8 MiB
/video/64bbda1cd0c88e86/64bbda1cd0c88e86video_3_000000002...	547.2 KiB
/ESWWebSpanishGuest1710551531643/webruntime/view/00c34257...	394.5 KiB
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	273.2 KiB
static-assets.nike.com/video-player/2.2.0/nike-one-video-player.min.js	191.1 KiB
/static/bellotti/playcard/_reco/public/180ba9b95e2f7d6c7d...	159.5 KiB
/a/images/f_auto,cs_srgb/w_1920,c_limit/afefac9b-9c1c-408...	151.1 KiB
assets.nmp.nike.com/video/f6407733e105cfc1/f6407733e105cfc1audio_000000001.cmfa	141.3 KiB
www.nike.com/es/	128.1 KiB

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

●Optimize DOM size

●Forced reflow

●LCP breakdown

●Modern HTTP

●Optimize viewport for mobile

●Minify JavaScript

●User Timing marks and measures 13 user timings

●Avoid long main-thread tasks 7 long tasks found

●Avoid non-composited animations 22 animated elements found

●Image elements have explicit `width` and `height`

●Page didn't prevent back/forward cache restoration

●Network Requests

●Network Round Trip Times 100 ms

●Server Backend Latencies 210 ms

●Tasks

●Diagnostics

●Metrics

●Screenshot Thumbnails

●Final Screenshot

●Script Treemap Data

●Resources Summary

●Initial server response time was short Root document took 210 ms

○INP breakdown

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Novedad Hombre Mujer Niño/a Deporte NikeSKIMS `div.nds-grid > div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category`

Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Menú Ayuda `ul.desktop-list > li.link-item > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Menú Novedad `li > div.nav-css-jq32a0 > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Menú Hombre `li > div.nav-css-jq32a0 > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Menú Mujer `li > div.nav-css-jq32a0 > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Menú Niño/a `li > div.nav-css-jq32a0 > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Menú Deporte `li > div.nav-css-jq32a0 > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Menú NikeSKIMS `li > div.nav-css-jq32a0 > details.nav-css-1qehhq > summary.drop-down-accessibility-button`
Guías `li > div.nav-css-s8yvqs > details.nav-css-1qehhq > summary.drop-down-accessibility-button`

ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Datos para mejorar tu experiencia Para mejorar tu experiencia en nuestras plat… `div.modal-portal-content-wrapper > div > div.css-lulp55 > div.cookie-modal-base`

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.

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
McIlroy demuestra que tiene talla de campeón y encadena dos triunfos consecutiv… `figure.image-card > figcaption._13xDDA0A > div._3T7SP3hk > p.nds-text`
GOLPEA ALTO. SUELTA TU SWING. `figure.image-card > figcaption._13xDDA0A > div._3T7SP3hk > h3#a11y_react-aria-:R6ulpl6:-title`

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
Zapatillas `div#3271d803-bbb7-4e2c-abb7-d17e4768107e > div#c74ceb50-ec75-4546-906c-e3ea59464b4f > div.merchMenuWrapper > h4.merch-menu-heading`

These are opportunities to improve keyboard navigation in your application.

Tables and lists

Screen readers require list items (`<li>`) to be contained within a parent `<ul>`, `<ol>` or `<menu>` to be announced properly. Learn more about proper list structure.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Novedad `div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category > li`
Hombre `div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category > li`
Mujer `div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category > li`
Niño/a `div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category > li`
Deporte `div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category > li`
NikeSKIMS `div.shopping-menu-grid > nav.nav-css-1q2uc33 > ul.desktop-category > li`

These are opportunities to improve the experience of reading tabular or list data using assistive technology, like a screen reader.

○Interactive controls are keyboard focusable

○Interactive elements indicate their purpose and state

○The page has a logical tab order

○Visual order on the page follows DOM order

○User focus is not accidentally trapped in a region

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

○HTML5 landmark elements are used to improve navigation

○Offscreen content is hidden from assistive technology

○Custom controls have associated labels

○Custom controls have ARIA roles

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

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

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

●`[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

●`[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>`).

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

●Touch targets have sufficient size and spacing.

●`[lang]` attributes have a valid value

●Document has a main landmark.

●Deprecated ARIA roles were not used

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

●Uses ARIA roles only on compatible elements

●Identical links have the same purpose.

●Elements with visible text labels have matching accessible names.

○`[accesskey]` values are unique

○Elements with `role="dialog"` or `role="alertdialog"` 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

○`<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.

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

○All heading elements contain content.

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

○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
SharedStorage	line 2, col 92
StorageType.persistent is deprecated. Please use standardized navigator.storage instead.	line 2, col 37
Fledge	line 2, col 37

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
api.nike.com/buy/carts/v2/ES/NIKE/NIKECOM	`Failed to load resource: the server responded with a status of 403 ()`
api.nike.com/buy/carts/v2/ES/NIKE/NIKECOM	`Failed to load resource: the server responded with a status of 404 ()`
/149e9513-01fa-4fb0-aad4-566afd725d1b/2d206a39-8ed7-437e-...	`Failed to load resource: the server responded with a status of 429 ()`

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.

●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 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

○Redirects HTTP traffic to HTTPS

○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`