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Audit Complete

Results for https://nutrimuscle.com

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Spain Spain · Madrid Completed: Apr 8, 2026 08:17 UTC

Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C71

Site Health

Score: 71 / 100

Based on 8 categories, 0 sections

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

Top Priorities (5)

1

Content-Security-Policy header is missing

Security › Security Headers
2

HSTS header is missing

Security › Security Headers
3

No Content-Security-Policy header found

Security › Content Security Policy
4

Page weighs 15.8 MB (6.2 MB transferred)

Performance › Page Weight Budget
5

2 button(s) with no accessible text

Accessibility › Link & Button Quality
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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

21
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
80
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
92
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

4.33 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

7.63 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

2.28 s

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.186

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

10.61 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

30.83 s

Detailed Report

Audit breakdown by category with detailed findings.

21

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

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

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

RequestCache TTLTransfer Size
cdn-widgetsrepository.yotpo.com/v1/loader/ya0u5A9TkDdPGwgC8w1R9w0.0 ms106.6 KiB
t.contentsquare.net/uxa/6f2b763a3f85e.js900.0 s116.9 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s95.0 KiB
connect.nosto.com/include/shopify-31857180809-65419018569-es600.0 s48.4 KiB
/signals/config/601578687020392?v=2.9.293&r=stable&domain...1200.0 s37.4 KiB
eu-assets.i.posthog.com/static/surveys.js?v=1.315.0300.0 s31.9 KiB
wisepops.net/v2/feed.js?h=qY9HMDuzbJ1800.0 s31.2 KiB
/websites/42644/campaigns/30485/teaser/5e552b34-3e4c-47d0...0.0 ms25.9 KiB
/v1/loader/T96lI65wxNcVssjr1epM9GPnMRfQtbd82DCCBCDO?langu...0.0 ms21.9 KiB
wisepops.net/loader.js?v=2&h=qY9HMDuzbJ1800.0 s24.4 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
js-tag.zemanta.com/zcpt.js1200.0 s16.9 KiB
d18eg7dreypte5.cloudfront.net/browse-abandonment/v2/generic.js0.0 ms14.9 KiB
nutrimuscle.my.join-stories.com/scripts/global.js30.0 s11.9 KiB
files.webyn.ai/webyn.min.js3600.0 s14.5 KiB
/websites/42644/campaigns/42689/teaser/4209ff8a-061b-4d97...0.0 ms10.5 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
static.klaviyo.com/onsite/js/T9argN/klaviyo.js?company_id=T9argN1.0 s3.0 KiB
s.kk-resources.com/leadtag.js3600.0 s2.8 KiB
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...300.0 s2.1 KiB
wisepops.net/shopify/shopify.js?h=qY9HMDuzbJ1800.0 s1.8 KiB
/array/phc_EKMR6Jt4OTMEYmoUlz0v58KPwqcFxI7aZCLckpSD8Tv/co...300.0 s1.1 KiB
/config/com/14b8090c-7648-4a2a-8bc5-598f90b54203.js?v=3.5...0.0 ms475 B
/js/core/nutrimuscle-france.js?shop=nutrimuscle-france.my...1800.0 s418 B
/init.json?shop=nutrimuscle-france.myshopify.com&vt=17719...5326.0 s383 B
/_/set_cookie?val=aQwkiy2ymlXP87MPeKd16dOOXcqQ5d6imIbcx3S...0.0 ms48 B
/tr/?id=601578687020392&ev=PageView&dl=https%3A%2F%2Fes.n...0.0 ms18 B
/tr/?ev=PageView&id=601578687020392&eid=1775637020145_177...0.0 ms16 B

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.

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:0.077764] map[node:map[boundingRect:map[bottom:1750 height:1750 left:0 right:412 top:0 width:412] lhId:page-1-BODY nodeLabel:body.gradient path:1,HTML,1,BODY selector:body.gradient snippet:<body class="gradient template-index- klaviyo-prevent-body-scrolling" style="--dialog-background-color: #FFFFFF; --dialog-primary-color: #EDEDF1;"> type:node] score:0.038882 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:83 height:43 left:113 right:293 top:40 width:180] lhId:page-11-IMG nodeLabel:logo path:1,HTML,1,BODY,71,SECTION,2,HEADER-MENU,4,HEADER,0,DIV,1,A,0,IMG selector:header.header-mobile > div.header-mobile-bar > a.header-mobile-bar-logo > img.header__logo snippet:<img src="//es.nutrimuscle.com/cdn/shop/files/Nutrimuscle-RVB-blue-logo-line_1.png?v…" alt="logo" srcset="//es.nutrimuscle.com/cdn/shop/files/Nutrimuscle-RVB-blue-logo-line_1.png?v…" width="300" height="71" loading="eager" class="header__logo" fetchpriority="high"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1750 height:1750 left:0 right:412 top:0 width:412] lhId:page-1-BODY nodeLabel:body.gradient path:1,HTML,1,BODY selector:body.gradient snippet:<body class="gradient template-index- klaviyo-prevent-body-scrolling" style="--dialog-background-color: #FFFFFF; --dialog-primary-color: #EDEDF1;"> type:node] score:0.038882 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:83 height:43 left:113 right:293 top:40 width:180] lhId:page-11-IMG nodeLabel:logo path:1,HTML,1,BODY,71,SECTION,2,HEADER-MENU,4,HEADER,0,DIV,1,A,0,IMG selector:header.header-mobile > div.header-mobile-bar > a.header-mobile-bar-logo > img.header__logo snippet:<img src="//es.nutrimuscle.com/cdn/shop/files/Nutrimuscle-RVB-blue-logo-line_1.png?v…" alt="logo" srcset="//es.nutrimuscle.com/cdn/shop/files/Nutrimuscle-RVB-blue-logo-line_1.png?v…" width="300" height="71" loading="eager" class="header__logo" fetchpriority="high"> type:node]] map[cause:Web font extra:map[type:url value:https://fonts.gstatic.com/s/dmsans/v17/rP2Hp2ywxg089UriCZOIHTWEBlw.woff2]]] type:subitems]]]
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:0.18633] map[node:map[boundingRect:map[bottom:823 height:823 left:11 right:401 top:0 width:390] lhId:page-3-DIV nodeLabel: INSCRIVEZ-VOUS À NOTRE NEWSLETTER   -10% dès 50€ d'achat sur votre première co… path:1,HTML,1,BODY,123,DIV,0,DIV,1,DIV,0,DIV selector:div > div.needsclick > div.needsclick > div.needsclick snippet:<div class="needsclick kl-private-reset-css-Xuajs1" style="overflow: visible; transform: scale(1); transform-origin: center center;"> type:node] score:0.18633 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:49 height:19 left:156 right:256 top:30 width:100] lhId:page-12-IMG nodeLabel:div.needsclick > div.needsclick > div.needsclick > img.needsclick path:1,HTML,1,BODY,123,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,DIV,1,FORM,0,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,IMG selector:div.needsclick > div.needsclick > div.needsclick > img.needsclick snippet:<img src="https://d3k81ch9hvuctc.cloudfront.net/company/T9argN/images/aabd789c-379e-…" tabindex="-1" class="needsclick kl-private-reset-css-Xuajs1" style="max-width: 100%; width: 100px; height: auto; cursor: initial;"> type:node]]] type:subitems]]]

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

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.

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.

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:13.447 source:map[column:36008 line:5 type:source-location url:https://wisepops.net/loader.js?v=2&h=qY9HMDuzbJ 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:148.066 source:map[type:text value:[unattributed]]] map[reflowTime:8.754 source:map[column:489 line:9515 type:source-location url:https://es.nutrimuscle.com/?shpxid=8ee1b50c-83f4-49e4-b18b-83b26add04e6 urlProvider:network]] map[reflowTime:12.841 source:map[column:35004 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.3.1.min.js urlProvider:network]] map[reflowTime:0.831 source:map[column:5426 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.header.js?v=91783241816871928351775562372 urlProvider:network]] map[reflowTime:0.678 source:map[column:5319 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.header.js?v=91783241816871928351775562372 urlProvider:network]] map[reflowTime:0.383 source:map[column:19413 line:0 type:source-location url:https://nutrimuscle.my.join-stories.com/scripts/global.js urlProvider:network]] map[reflowTime:1.641 source:map[column:36719 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.theme.js?v=100706698426218933961775562414 urlProvider:network]] map[reflowTime:2.997 source:map[column:80069 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.theme.js?v=100706698426218933961775562414 urlProvider:network]] map[reflowTime:1.341 source:map[column:41612 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.theme.js?v=100706698426218933961775562414 urlProvider:network]] map[reflowTime:0.315 source:map[column:7273 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.home-banner.js?v=39654749141426499891775562375 urlProvider:network]] map[reflowTime:8.469 source:map[column:49112 line:0 type:source-location url:https://wisepops.net/v2/feed.js?h=qY9HMDuzbJ urlProvider:network]] map[reflowTime:4.978 source:map[column:61681 line:0 type:source-location url:https://wisepops.net/v2/feed.js?h=qY9HMDuzbJ 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.

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
value: No additional origins are good candidates for preconnecting

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

URLResource SizeEst Savings
Black friday div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/94102784-ed9e-4b08-9ae2-bc318ef1c2...1.2 MiB1.2 MiB
div.swiper-slide > a.slide-link > picture > img.product__media div.swiper-slide > a.slide-link > picture > img.product__media
/cdn/shop/files/Slider_Mobile_51bca7cd-c44f-4ef4-b465-7ca...175.5 KiB82.1 KiB
div.needsclick > div.needsclick > div.needsclick > img.needsclick div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/aabd789c-379e-4eaa-b328-1a98a2a350...82.3 KiB81.3 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.

TTI

Redirects introduce additional delays before the page can be loaded. Learn how to avoid page redirects.

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

ElementLayout shift score
INSCRIVEZ-VOUS À NOTRE NEWSLETTER   -10% dès 50€ d'achat sur votre première co… div > div.needsclick > div.needsclick > div.needsclick
0.186
body.gradient body.gradient
0.039
body.gradient body.gradient
0.039

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.

Diagnostics

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.

URLTotal CPU TimeScript EvaluationScript Parse
Unattributable2.3 s280 ms0.0 ms
es.nutrimuscle.com/?shpxid=8ee1b50c-83f4-49e4-b18b-83b26add04e61.7 s195 ms40 ms
/cdn/shop/t/59/assets/bundle.theme.js?v=10070669842621893...1.4 s381 ms16 ms
es.nutrimuscle.com/cdn/wpm/b0e8c7c7aw41bd75a1p837d7fd4m8b145375m.js806 ms698 ms17 ms
/extensions/019d672b-e7b5-7f1f-b84d-49a7eade0c6f/dialog-a...665 ms525 ms5.9 ms
/cdn/shop/t/59/assets/bundle.ax-search.js?v=8368503230196...643 ms555 ms5.2 ms
t.contentsquare.net/uxa/6f2b763a3f85e.js621 ms548 ms41 ms
wisepops.net/loader.js?v=2&h=qY9HMDuzbJ544 ms385 ms7.8 ms
www.googletagmanager.com/gtag/js?id=G-R4JW57JMV9&cx=c&gtm=4e6461441 ms367 ms62 ms
www.googletagmanager.com/gtm.js?id=GTM-P9K2SD7371 ms310 ms50 ms
scripts.clarity.ms/0.8.59/clarity.js336 ms287 ms6.1 ms
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...327 ms290 ms3.7 ms
www.googletagmanager.com/gtag/js?id=AW-1040244031289 ms249 ms38 ms
cdn-widgetsrepository.yotpo.com/v1/loader/ya0u5A9TkDdPGwgC8w1R9w287 ms44 ms242 ms
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...229 ms188 ms6.7 ms
/extensions/019d5d53-9cea-7c48-a488-aff626849cbc/sale-man...209 ms142 ms12 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMw.js180 ms141 ms38 ms
connect.facebook.net/en_US/fbevents.js159 ms118 ms40 ms
es.nutrimuscle.com/cdn/shopifycloud/perf-kit/shopify-perf-kit-3.3.1.min.js157 ms91 ms7.1 ms
connect.nosto.com/include/shopify-31857180809-65419018569-es141 ms121 ms12 ms
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...137 ms113 ms23 ms
nutrimuscle.my.join-stories.com/scripts/global.js119 ms114 ms3.2 ms
sc-static.net/scevent.min.js117 ms104 ms5.3 ms
/cdn/shopifycloud/shop-js/modules/v2/chunk.index_4uAqGWkW...112 ms56 ms0.5 ms
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...105 ms67 ms2.6 ms
wisepops.net/v2/feed.js?h=qY9HMDuzbJ98 ms80 ms9.1 ms
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...97 ms80 ms16 ms
/cdn/shop/t/59/assets/bundle.announcement-bar.js?v=188972...92 ms71 ms0.7 ms
/signals/config/601578687020392?v=2.9.293&r=stable&domain...91 ms76 ms15 ms
/widget-assets/yotpo-pixel/2026-03-10_12-14-30/bundle.js87 ms63 ms14 ms
www.google-analytics.com/analytics.js83 ms62 ms6.2 ms
/extensions/019cf428-dcd3-7c76-9dc0-224f715a5db3/biscuits...77 ms27 ms1.0 ms
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...73 ms65 ms2.0 ms
/cdn/shop/t/59/assets/sidecart.js?v=598875628226009293817...67 ms40 ms5.4 ms
www.googletagmanager.com/gtag/js?id=AW-1040244031&cx=c&gtm=4e646165 ms23 ms42 ms
/v1/loader/T96lI65wxNcVssjr1epM9GPnMRfQtbd82DCCBCDO?langu...58 ms17 ms40 ms
files.webyn.ai/webyn.min.js54 ms45 ms3.7 ms
/cdn/shop/t/59/assets/bundle.home-banner.js?v=39654749141...50 ms38 ms0.7 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

CategoryTime Spent
Script Evaluation8.0 s
Other3.3 s
Style & Layout1.7 s
Script Parsing & Compilation996 ms
Rendering300 ms
Garbage Collection204 ms
Parse HTML & CSS144 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Failure reasonFailure type
The page has an unload handler in a sub frame.Actionable
Pages with WebSocket cannot enter back/forward cache.Pending browser support

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Estimated savings: 0.0 ms 3.0 KiB
URLTransfer SizeEst Savings
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...15.3 KiB3.0 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

URL
Black friday div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/94102784-ed9e-4b08-9ae2-bc318ef1c2...
div.needsclick > div.needsclick > div.needsclick > img.needsclick div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/aabd789c-379e-4eaa-b328-1a98a2a350...

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

Optimize DOM size
LCP breakdown
LCP request discovery
Modern HTTP
Optimize viewport for mobile
Reduce unused CSS
User Timing marks and measures 137 user timings
Avoid long main-thread tasks 20 long tasks found
Avoid non-composited animations 2 animated elements found
Network Requests
Network Round Trip Times 120 ms
Server Backend Latencies 320 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 40 ms
INP breakdown
80

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.

Failing Elements
Toutes les actualités et les nouveautés en avant-première div.newsletter-footer > div.newsletter-footer-newsletter > div.newsletter-footer-newsletter__content > p.newsletter-footer-newsletter__content-text
J'accepte de recevoir des offres et communications par email div > form#NewsletterForm--newsletter-footer > div.field > label
JE M'INSCRIS div.needsclick > div.needsclick > div.needsclick > button.needsclick

These are opportunities to improve the legibility of your content.

Names and labels

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Failing Elements
div.needsclick > div.needsclick > div.needsclick > img.needsclick div.needsclick > div.needsclick > div.needsclick > img.needsclick

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Failing Elements
header.header-mobile > div.header-mobile-bar > div.header-mobile-bar-cta > a.header__icon header.header-mobile > div.header-mobile-bar > div.header-mobile-bar-cta > a.header__icon
div#Swiper-template--19614745592137__5769f06b-d9ef-4f37-b564-3f71cdeab6eb > div#swiper-wrapper-c381b8437b543174 > div.swiper-slide > a.slide-link div#Swiper-template--19614745592137__5769f06b-d9ef-4f37-b564-3f71cdeab6eb > div#swiper-wrapper-c381b8437b543174 > div.swiper-slide > a.slide-link
div#Swiper-template--19614745592137__5769f06b-d9ef-4f37-b564-3f71cdeab6eb > div#swiper-wrapper-c381b8437b543174 > div.swiper-slide > a.slide-link div#Swiper-template--19614745592137__5769f06b-d9ef-4f37-b564-3f71cdeab6eb > div#swiper-wrapper-c381b8437b543174 > div.swiper-slide > a.slide-link

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Failing Elements
head > meta head > meta

Touch targets with sufficient size and spacing help users who may have difficulty targeting small controls to activate the targets. Learn more about touch targets.

Failing Elements
Conditions générales de vente div.footer__container > div.footer__cgu > div.footer__cgu-entries > a.z-text
Politique de confidentialité div.footer__container > div.footer__cgu > div.footer__cgu-entries > a.z-text
Accessibilité : Non conforme div.footer__container > div.footer__cgu > div.footer__cgu-entries > a.z-text

These items highlight common accessibility best practices.

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
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Form elements have associated labels
`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
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
Document has a main landmark.
Deprecated ARIA roles were not used
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
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
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
Heading elements appear in a sequentially-descending order
`<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
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.
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.
77

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Deprecation / WarningSource
AttributionReporting
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.

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

SourceDescription
Uncaught [object Object]
Uncaught [object Object]
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
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
92

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

Informative elements should aim for short, descriptive alternate text. Decorative elements can be ignored with an empty alt attribute. Learn more about the `alt` attribute.

Failing Elements
div.needsclick > div.needsclick > div.needsclick > img.needsclick div.needsclick > div.needsclick > div.needsclick > img.needsclick

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

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
Document has a valid `hreflang`
Document has a valid `rel=canonical`

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

74
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
84
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
81
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

1.57 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

1.88 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

158 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.003

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

3.95 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

6.94 s

Detailed Report

Audit breakdown by category with detailed findings.

74

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

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

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

RequestCache TTLTransfer Size
cdn-widgetsrepository.yotpo.com/v1/loader/ya0u5A9TkDdPGwgC8w1R9w0.0 ms106.6 KiB
t.contentsquare.net/uxa/6f2b763a3f85e.js900.0 s116.9 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s95.0 KiB
connect.nosto.com/include/shopify-31857180809-65419018569-es600.0 s48.4 KiB
cdn.cookielaw.org/scripttemplates/6.18.0/otBannerSdk.js86400.0 s84.2 KiB
/signals/config/601578687020392?v=2.9.293&r=stable&domain...1200.0 s37.4 KiB
eu-assets.i.posthog.com/static/surveys.js?v=1.315.0300.0 s32.0 KiB
wisepops.net/v2/feed.js?h=qY9HMDuzbJ1800.0 s31.3 KiB
/websites/42644/campaigns/30485/teaser/5e552b34-3e4c-47d0...0.0 ms25.9 KiB
/v1/loader/T96lI65wxNcVssjr1epM9GPnMRfQtbd82DCCBCDO?langu...0.0 ms21.9 KiB
wisepops.net/loader.js?v=2&h=qY9HMDuzbJ1800.0 s24.5 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
js-tag.zemanta.com/zcpt.js1200.0 s16.9 KiB
d18eg7dreypte5.cloudfront.net/browse-abandonment/v2/generic.js0.0 ms14.9 KiB
nutrimuscle.my.join-stories.com/scripts/global.js30.0 s11.9 KiB
files.webyn.ai/webyn.min.js3600.0 s14.5 KiB
/websites/42644/campaigns/42689/teaser/4209ff8a-061b-4d97...0.0 ms10.5 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
static.klaviyo.com/onsite/js/T9argN/klaviyo.js?company_id=T9argN1.0 s3.0 KiB
s.kk-resources.com/leadtag.js3600.0 s2.8 KiB
/cdn/shopifycloud/portable-wallets/latest/accelerated-che...300.0 s2.2 KiB
wisepops.net/shopify/shopify.js?h=qY9HMDuzbJ1800.0 s1.7 KiB
/array/phc_EKMR6Jt4OTMEYmoUlz0v58KPwqcFxI7aZCLckpSD8Tv/co...300.0 s1.1 KiB
/config/com/14b8090c-7648-4a2a-8bc5-598f90b54203.js?v=3.5...0.0 ms475 B
/js/core/nutrimuscle-france.js?shop=nutrimuscle-france.my...1800.0 s419 B
/init.json?shop=nutrimuscle-france.myshopify.com&vt=17719...5297.0 s383 B
/_/set_cookie?val=PaexRl3nfO6TDZTCzWUpvppCJZyMHZzMLge9MOx...0.0 ms48 B
/tr/?id=601578687020392&ev=PageView&dl=https%3A%2F%2Fes.n...0.0 ms19 B
/tr/?ev=PageView&id=601578687020392&eid=1775636797774_177...0.0 ms16 B

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

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.

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.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:99.121 source:map[type:text value:[unattributed]]] map[reflowTime:16.048 source:map[column:489 line:9515 type:source-location url:https://es.nutrimuscle.com/?shpxid=7425605f-2691-41a4-9f33-4a280d3a4217 urlProvider:network]] map[reflowTime:13.939 source:map[column:5319 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/bundle.header.js?v=91783241816871928351775562372 urlProvider:network]] map[reflowTime:22.538 source:map[column:2946 line:0 type:source-location url:https://es.nutrimuscle.com/cdn/shop/t/59/assets/component-cart-progressbar-rewards.js?v=75713399163430325591726646624 urlProvider:network]]]

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

lhId: page-0-IMG
nodeLabel: nutrimuscle
path: 1,HTML,1,BODY,73,MAIN,0,DIV,3,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,A,2,DIV,0,DIV,0,IMG
selector: a.slide-link > div.slide-separator > div.slide-separator_image > img.product__media
snippet: <img src="https://es.nutrimuscle.com/cdn/shop/files/Slider_Desktop_Pilier_seche.png?…" alt="nutrimuscle" srcset="//es.nutrimuscle.com/cdn/shop/files/Slider_Desktop_Pilier_seche.png?v=1775…" width="1920" height="600" loading="eager" class="product__media" fetchpriority="high">

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.

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
value: No additional origins are good candidates for preconnecting

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

URLResource SizeEst Savings
form.needsclick > div.needsclick > div.needsclick > img.needsclick form.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/41e399ab-a455-4d0d-8b48-6cba18787f...1.5 MiB1.5 MiB
Nutrimuscle div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/aabd789c-379e-4eaa-b328-1a98a2a350...82.3 KiB82.0 KiB
nutrimuscle a.slide-link > div.slide-separator > div.slide-separator_image > img.product__media
/cdn/shop/files/Slider_Desktop_Pilier_seche.png?v=1775239...104.6 KiB9.7 KiB
div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item > img div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item > img
/cdn/shop/files/Diagnostic_f406d1c5-9429-485e-b824-b84b16...24.8 KiB9.7 KiB
div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item > img div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item > img
/cdn/shop/files/MegaMenu_ORIGINS_484x282_1248cbc2-ebf4-4b...20.2 KiB5.1 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.

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.

TTI

Diagnostics

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.

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

CategoryTime Spent
Script Evaluation2.5 s
Other1.0 s
Style & Layout528 ms
Script Parsing & Compilation283 ms
Rendering107 ms
Garbage Collection59 ms
Parse HTML & CSS56 ms

Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache

Failure reasonFailure type
The page has an unload handler in a sub frame.Actionable
Pages with WebSocket cannot enter back/forward cache.Pending browser support

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Estimated savings: 0.0 ms 3.0 KiB
URLTransfer SizeEst Savings
/onsite/js/build-preview/commit-98747c9b1816a2f78e748cdc0...15.4 KiB3.0 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.

Estimated savings: 0.0 ms 30.0 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.

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

URL
Nutrimuscle div.needsclick > div.needsclick > div.needsclick > img.needsclick
/company/T9argN/images/aabd789c-379e-4eaa-b328-1a98a2a350...

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

Max Potential First Input Delay 110 ms
Layout shift culprits
Optimize DOM size
LCP breakdown
Modern HTTP
Optimize viewport for mobile
User Timing marks and measures 164 user timings
Avoid long main-thread tasks 8 long tasks found
Avoid non-composited animations 3 animated elements found
Network Requests
Network Round Trip Times 120 ms
Server Backend Latencies 250 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 30 ms
Avoid large layout shifts 15 layout shifts found
INP breakdown
84

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

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Failing Elements
En cliquant sur « Accepter », vous acceptez le stockage de cookies sur votre ap… body.gradient > div#onetrust-consent-sdk > div#onetrust-banner-sdk > div.ot-sdk-container

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.

Failing Elements
Toutes les actualités et les nouveautés en avant-première div.newsletter-footer > div.newsletter-footer-newsletter > div.newsletter-footer-newsletter__content > p.newsletter-footer-newsletter__content-text
J'accepte de recevoir des offres et communications par email div > form#NewsletterForm--newsletter-footer > div.field > label
Accepter div#onetrust-button-group-parent > div#onetrust-button-group > div.onetrust-banner-options > button#onetrust-accept-btn-handler
Paramétrer les cookies div.ot-sdk-row > div#onetrust-button-group-parent > div#onetrust-button-group > button#onetrust-pc-btn-handler
JE M'INSCRIS div.needsclick > div.needsclick > div.needsclick > button.needsclick

These are opportunities to improve the legibility of your content.

Names and labels

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Failing Elements
div.menu-dropdown__content-list > div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item div.menu-dropdown__content-list > div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item
div.menu-dropdown__content-list > div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item div.menu-dropdown__content-list > div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item
div.menu-dropdown__content-list > div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item div.menu-dropdown__content-list > div.menu-dropdown__content-list-item-dropdown > div.menu-dropdown__content-list-item-dropdown-push > a.menu-dropdown__content-list-item-dropdown-push-item

These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of assistive technology, like a screen reader.

Best practices

Disabling zooming is problematic for users with low vision who rely on screen magnification to properly see the contents of a web page. Learn more about the viewport meta tag.

Failing Elements
head > meta head > meta

These items highlight common accessibility best practices.

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
`[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
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
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.
Heading elements appear in a sequentially-descending order
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
Elements with visible text labels have matching accessible names.
`[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 an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[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
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
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.
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
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.
81

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Deprecation / WarningSource
AttributionReporting
Specifying overflow: visible on img, video and canvas tags may cause them to produce visual content outside of the element bounds. See https://github.com/WICG/shared-element-transitions/blob/main/debugging_overflow_on_images.md.
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
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`

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