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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

60

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.

RequestCache TTLTransfer Size
/injector.js/v2/0072?website_code=83c6ae62-0926-450e-a47d...3600.0 s943.0 KiB
www.caixa.gov.br/PublishingImages/nova-home/carrossel/2026-seguranca/desktop.jpg86400.0 s1.1 MiB
www.caixa.gov.br/PublishingImages/nova-home/carrossel/2026-seguranca/mobile.jpg86400.0 s766.4 KiB
/PublishingImages/nova-home/carrossel/novo-desenrola/DEST...86400.0 s626.5 KiB
/PublishingImages/nova-home/carrossel/novo-desenrola/DEST...86400.0 s581.8 KiB
/PublishingImages/nova-home/carrossel/mega-30-anos/HomeSi...86400.0 s395.5 KiB
www.caixa.gov.br/Style%20Library/fontawesome6/webfonts/fa-solid-900.woff23600.0 s154.7 KiB
/PublishingImages/nova-home/destaque-produtos/806x516/202...86400.0 s272.2 KiB
/PublishingImages/nova-home/carrossel/mega-30-anos/HomeSi...86400.0 s267.5 KiB
/PublishingImages/nova-home/destaque-produtos/806x516/202...86400.0 s235.2 KiB
/PublishingImages/nova-home/destaque-produtos/806x516/202...86400.0 s234.4 KiB
www.caixa.gov.br/Style%20Library/fontawesome6/webfonts/fa-brands-400.woff23600.0 s116.4 KiB
/PublishingImages/nova-home/destaque-produtos/806x516/202...86400.0 s214.2 KiB
/PublishingImages/nova-home/destaque-produtos/806x516/202...86400.0 s210.2 KiB
/PublishingImages/nova-home/destaque-produtos/806x516/202...86400.0 s201.7 KiB
/PublishingImages/nova-home/carrossel/trabalhador-2026/Ho...86400.0 s162.0 KiB
www.caixa.gov.br/PublishingImages/nova-home/carrossel/mega-30-anos/selo.png86400.0 s133.7 KiB
/PublishingImages/nova-home/carrossel/copa-visa-2026/V9-D...86400.0 s132.7 KiB
/PublishingImages/nova-home/carrossel/trabalhador-2026/BG...86400.0 s120.4 KiB
/PublishingImages/nova-home/carrossel/copa-visa-2026/V9-M...86400.0 s100.8 KiB
www.caixa.gov.br/Style%20Library/js/jquery-ui.min.js86400.0 s88.8 KiB
www.caixa.gov.br/Style%20Library/fonts/CAIXAStd-SemiBold.woff3600.0 s40.3 KiB
www.caixa.gov.br/Style%20Library/fonts/CAIXAStd-Bold.woff3600.0 s40.1 KiB
www.caixa.gov.br/Style%20Library/fonts/CAIXAStd-Book.woff3600.0 s39.2 KiB
www.caixa.gov.br/Style%20Library/js/swiper-bundle.min.js86400.0 s61.8 KiB
www.caixa.gov.br/Style%20Library/fontawesome6/webfonts/fa-regular-400.woff23600.0 s25.9 KiB
www.caixa.gov.br/PublishingImages/nova-home/carrossel/novo-desenrola/selo.png86400.0 s46.7 KiB
/PublishingImages/nova-home/carrossel/copa-visa-2026/V9-D...86400.0 s44.8 KiB
www.caixa.gov.br/PublishingImages/nova-home/carrossel/2026-seguranca/selo.png86400.0 s44.5 KiB
www.caixa.gov.br/Style%20Library/js/jquery.min.js86400.0 s38.8 KiB
www.caixa.gov.br/Style%20Library/fontawesome6/css/font-awesome.min.css86400.0 s29.7 KiB
scripts.clarity.ms/0.8.64/clarity.js86400.0 s25.1 KiB
www.caixa.gov.br/Style%20Library/images/icos_loterias.png86400.0 s18.9 KiB
/PublishingImages/nova-home/carrossel/trabalhador-2026/Se...86400.0 s17.2 KiB
www.caixa.gov.br/Style%20Library/js/slick.min.js86400.0 s14.8 KiB
www.caixa.gov.br/Style%20Library/css/loterias-home.css86400.0 s14.6 KiB
www.caixa.gov.br/Style%20Library/images/ic-libras-azul-v1.png86400.0 s8.4 KiB
www.caixa.gov.br/Style%20Library/js/busca-caixa.js86400.0 s7.6 KiB
www.caixa.gov.br/Style%20Library/css/swiper-bundle.min.css86400.0 s6.7 KiB
www.caixa.gov.br/Style%20Library/css/header.css86400.0 s6.6 KiB
www.caixa.gov.br/Style%20Library/js/loterias-home.js86400.0 s4.9 KiB
www.caixa.gov.br/Style%20Library/css/carrossel-home.css86400.0 s4.9 KiB
www.caixa.gov.br/Style%20Library/js/cabecalho.js86400.0 s3.8 KiB
www.caixa.gov.br/Style%20Library/css/rodape-caixa.css86400.0 s3.6 KiB
www.caixa.gov.br/Style%20Library/css/solucoes-conglomerado.css86400.0 s3.0 KiB
www.caixa.gov.br/PublishingImages/nova-home/icones/x-volume-negativa-54.png86400.0 s3.0 KiB
www.caixa.gov.br/Style%20Library/css/acesso-rapido.css86400.0 s1.8 KiB
www.caixa.gov.br/Style%20Library/js/carrossel-home.js86400.0 s1.7 KiB
www.caixa.gov.br/Style%20Library/css/destaques-home.css86400.0 s1.7 KiB
www.caixa.gov.br/Style%20Library/js/solucoes-conglomerado.js86400.0 s1.5 KiB
www.caixa.gov.br/Style%20Library/css/clean.css86400.0 s1.4 KiB
www.caixa.gov.br/Style%20Library/images/logo-caixa-branco.png86400.0 s1.3 KiB
www.caixa.gov.br/Style%20Library/css/botao-acessibilidade.css86400.0 s1.1 KiB
www.caixa.gov.br/Style%20Library/js/destaques-home.js86400.0 s1.1 KiB
www.caixa.gov.br/Style%20Library/js/acesso-rapido.js86400.0 s1.1 KiB
www.caixa.gov.br/Style%20Library/js/rodape-caixa.js86400.0 s1007 B

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.

A forced reflow occurs when JavaScript queries geometric properties (such as offsetWidth) after styles have been invalidated by a change to the DOM state. This can result in poor performance. Learn more about forced reflows and possible mitigations.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:2.735 source:map[column:5653 line:12 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:9.94 source:map[column:12547 line:12 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/swiper-bundle.min.js urlProvider:network]] map[reflowTime:5.473 source:map[column:50335 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:0.405 source:map[column:50393 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:0.338 source:map[column:50457 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:4.224 source:map[column:49637 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:0.509 source:map[column:51395 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:0.345 source:map[column:52814 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:0.775 source:map[column:49615 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:15.787 source:map[column:85575 line:1 type:source-location url:https://www.caixa.gov.br/Style%20Library/js/jquery.min.js urlProvider:network]] map[reflowTime:6.139 source:map[column:15939 line:1 type:source-location url:https://scripts.clarity.ms/0.8.64/clarity.js urlProvider:network]]]

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.

URLResource SizeEst Savings
div#carrosselHomeDesktop > div#swiper-wrapper-7410987410d9c7425 > div.swiper-slide > img div#carrosselHomeDesktop > div#swiper-wrapper-7410987410d9c7425 > div.swiper-slide > img
/PublishingImages/nova-home/carrossel/novo-desenrola/DEST...580.4 KiB476.7 KiB
Homem jovem turista viajante com chapéu de roupas de verão trabalhando no compu… div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...271.2 KiB237.1 KiB
div#carrosselHomeDesktop > div#swiper-wrapper-7410987410d9c7425 > div.swiper-slide > img div#carrosselHomeDesktop > div#swiper-wrapper-7410987410d9c7425 > div.swiper-slide > img
/PublishingImages/nova-home/carrossel/mega-30-anos/HomeSi...394.3 KiB230.0 KiB
Homem conversando ou digitando mensagem de texto usando telefone celular div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...234.2 KiB200.1 KiB
Imagem de uma mulher olhando para um celular div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...233.5 KiB199.4 KiB
Imagem de uma mulher segurando um chave div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...213.3 KiB179.2 KiB
Imagem para Open Finance div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...209.2 KiB175.1 KiB
Imagem de uma mulher sorrindo em frente a uma floresta. div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...200.8 KiB166.7 KiB
A Mega-Sena trintou! div.swiper-slide > div.descricao-carrossel > div > img
www.caixa.gov.br/PublishingImages/nova-home/carrossel/mega-30-anos/selo.png132.8 KiB111.8 KiB
Aproveite o Novo Desenrola Brasil. Negocie suas dívidas com a CAIXA e fique com… div.swiper-slide > div.descricao-carrossel > div > img
www.caixa.gov.br/PublishingImages/nova-home/carrossel/novo-desenrola/selo.png45.9 KiB24.9 KiB
Ser Brasileiro é pura emoção. Concorra a experiências na Copa do Mundo da Fifa … div.swiper-slide > div.descricao-carrossel > div > img
/PublishingImages/nova-home/carrossel/copa-visa-2026/V9-D...44.1 KiB23.0 KiB
QUINA div#jogoSelecionadoHome > div#selectQuina > div.product-column > p.quina
www.caixa.gov.br/Style%20Library/images/icos_loterias.png18.2 KiB15.4 KiB
Quem trabalha merece mais. Confira os benefícios da CAIXA para o Dia do Trabalh… div.swiper-slide > div.descricao-carrossel > div > img
/PublishingImages/nova-home/carrossel/trabalhador-2026/Se...16.4 KiB5.5 KiB

Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:2762.428 label:Time to first byte subpart:timeToFirstByte] map[duration:740.568 label:Resource load delay subpart:resourceLoadDelay] map[duration:119.208 label:Resource load duration subpart:resourceLoadDuration] map[duration:1646.206 label:Element render delay subpart:elementRenderDelay]]
lhId: page-2-IMG
nodeLabel: div#carrosselHomeDesktop > div#swiper-wrapper-7410987410d9c7425 > div.swiper-slide > img
path: 1,HTML,1,BODY,1,FORM,12,DIV,0,DIV,1,DIV,5,DIV,1,DIV,0,SPAN,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,5,DIV,0,DIV,0,DIV,0,DIV,0,IMG
selector: div#carrosselHomeDesktop > div#swiper-wrapper-7410987410d9c7425 > div.swiper-slide > img
snippet: <img src="/PublishingImages/nova-home/carrossel/mega-30-anos/HomeSite-Desktop1920x68…" fetchpriority="high" aria-hidden="true">

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

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.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused 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: 70 ms 77.8 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure type
The page has an unload handler in the main frame.Actionable

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 7.8 KiB
URLTransfer SizeEst Savings
www.caixa.gov.br/Style%20Library/css/loterias-home.css14.6 KiB4.3 KiB
--sxs { --sxs: 0; } …37.6 KiB3.4 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 11.8 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
Imagem de uma mulher segurando um chave div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...
Imagem de uma mulher olhando para um celular div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...
Homem jovem turista viajante com chapéu de roupas de verão trabalhando no compu… div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...
Homem conversando ou digitando mensagem de texto usando telefone celular div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...
Imagem para Open Finance div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...
Imagem de uma mulher sorrindo em frente a uma floresta. div#destaquesHome > div.card-destaque > div.imagem-destaque > img
/PublishingImages/nova-home/destaque-produtos/806x516/202...
Acesso a página inicial da CAIXA li.header-logo-caixa > div.logo > a.data-layer > img
www.caixa.gov.br/PublishingImages/nova-home/icones/x-volume-negativa-54.png
Imagem do interior de um ônibus. div.slick-slide > div.item-solucao > div.imagem-solucao > img
div.slick-slide > div.item-solucao > div.imagem-solucao > img div.slick-slide > div.item-solucao > div.imagem-solucao > img
carrossel home solucoes tagcaixa empresas div.slick-slide > div.item-solucao > div.imagem-solucao > img
div.slick-slide > div.item-solucao > div.imagem-solucao > img div.slick-slide > div.item-solucao > div.imagem-solucao > img
Homem com celular na mão do lado esquerdo da imagem. div#slick-slide00 > div.item-solucao > div.imagem-solucao > img
Apple Pay div#slick-slide01 > div.item-solucao > div.imagem-solucao > img
Logo da azulzinha, uma mulher ao lado das maquininhas da CAIXA. div#slick-slide02 > div.item-solucao > div.imagem-solucao > img
Proteção e benefícios para você e sua família! Garanta a proteção da sua famíli… div#slick-slide03 > div.item-solucao > div.imagem-solucao > img
Chaveiro, eletricista e outros serviços para o seu dia a dia. Contrate o seguro… div#slick-slide04 > div.item-solucao > div.imagem-solucao > img
Com a tagCAIXA você não pega filas e faz pagamentos sem sair do carro! Utilize … div#slick-slide05 > div.item-solucao > div.imagem-solucao > img
Consórcio da Gente - Agora ficou mais fácil conquistar o patrimônio com parcela… div#slick-slide06 > div.item-solucao > div.imagem-solucao > img
Cartão CAIXA Mulher div#slick-slide07 > div.item-solucao > div.imagem-solucao > img
Já pensou em ser um milionário? Guarde dinheiro e realize seus sonhos concorren… div#slick-slide08 > div.item-solucao > div.imagem-solucao > img
Todos os benefícios da Previdência para seu futuro e assistências para sua saúd… div#slick-slide09 > div.item-solucao > div.imagem-solucao > img
Imagem do interior de um ônibus. div#slick-slide010 > div.item-solucao > div.imagem-solucao > img
div#slick-slide011 > div.item-solucao > div.imagem-solucao > img div#slick-slide011 > div.item-solucao > div.imagem-solucao > img
carrossel home solucoes tagcaixa empresas div#slick-slide012 > div.item-solucao > div.imagem-solucao > img
div#slick-slide013 > div.item-solucao > div.imagem-solucao > img div#slick-slide013 > div.item-solucao > div.imagem-solucao > img
Homem com celular na mão do lado esquerdo da imagem. div.slick-slide > div.item-solucao > div.imagem-solucao > img
Apple Pay div.slick-slide > div.item-solucao > div.imagem-solucao > img
Logo da azulzinha, uma mulher ao lado das maquininhas da CAIXA. div.slick-slide > div.item-solucao > div.imagem-solucao > img
Proteção e benefícios para você e sua família! Garanta a proteção da sua famíli… div.slick-slide > div.item-solucao > div.imagem-solucao > img
Chaveiro, eletricista e outros serviços para o seu dia a dia. Contrate o seguro… div.slick-slide > div.item-solucao > div.imagem-solucao > img
Com a tagCAIXA você não pega filas e faz pagamentos sem sair do carro! Utilize … div.slick-slide > div.item-solucao > div.imagem-solucao > img
Consórcio da Gente - Agora ficou mais fácil conquistar o patrimônio com parcela… div.slick-slide > div.item-solucao > div.imagem-solucao > img
Cartão CAIXA Mulher div.slick-slide > div.item-solucao > div.imagem-solucao > img
Já pensou em ser um milionário? Guarde dinheiro e realize seus sonhos concorren… div.slick-slide > div.item-solucao > div.imagem-solucao > img
Todos os benefícios da Previdência para seu futuro e assistências para sua saúd… div.slick-slide > div.item-solucao > div.imagem-solucao > img
Imagem do interior de um ônibus. div.slick-slide > div.item-solucao > div.imagem-solucao > img
div.slick-slide > div.item-solucao > div.imagem-solucao > img div.slick-slide > div.item-solucao > div.imagem-solucao > img
carrossel home solucoes tagcaixa empresas div.slick-slide > div.item-solucao > div.imagem-solucao > img
div.slick-slide > div.item-solucao > div.imagem-solucao > img div.slick-slide > div.item-solucao > div.imagem-solucao > img

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 request discovery
●Modern HTTP
●Optimize viewport for mobile
●JavaScript execution time 1.1 s
●Minimizes main-thread work 2.0 s
●Avoid long main-thread tasks 7 long tasks found
●Avoid non-composited animations 1 animated element found
●Network Requests
●Network Round Trip Times 350 ms
●Server Backend Latencies 270 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 370 ms
●Avoid large layout shifts 9 layout shifts found
○INP breakdown
○User Timing marks and measures
96

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.

Names and labels

When a button doesn't have an accessible name, screen readers announce it as "button", making it unusable for users who rely on screen readers. Learn how to make buttons more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
li#headerMenuHamburguer > div.border-conteudo-lista > div.conteudo-header-lista > button#tituloHeaderMenu0 li#headerMenuHamburguer > div.border-conteudo-lista > div.conteudo-header-lista > button#tituloHeaderMenu0

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.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
●`[role]`s are contained by their required parent element
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●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.
●Select elements have associated label elements.
●ARIA attributes are used as specified for the element's role
●Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●Background and foreground colors have a sufficient contrast ratio
●Document has a `<title>` element
●`<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.
●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 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
○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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
●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
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Ensure proper origin isolation with COOP
○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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