Lighthouse Desktop
· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.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.
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
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.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Imagem de um índio ilustrando um banner sobre como contribuir para um mundo mai… bb-card-banner#cardBanner_6a10cc56cb5c4 > div.bb-card-banner--image > picture > img | cdn.bb.com.br/wp-content/uploads/2025/12/Card-Banner-desk-1.png | 470.2 KiB | 421.4 KiB |
Imagem de um sinal de trânsito com a cor amarela acionada para alertar sobre go… bb-card-banner#cardBanner_6a10cc56cc8b7 > div.bb-card-banner--image > picture > img | cdn.bb.com.br/wp-content/uploads/2025/12/Seguranca-DT.jpg | 149.5 KiB | 99.1 KiB |
div.full-click > figure.banner-full__imagem > picture > img div.full-click > figure.banner-full__imagem > picture > img | /wp-content/uploads/2026/04/2026-C006-CAMPANHA-TORCIDA-BB... | 318.0 KiB | 97.0 KiB |
div.full-click > figure.banner-full__imagem > picture > img div.full-click > figure.banner-full__imagem > picture > img | /wp-content/uploads/2026/05/Banner-full-new_desenrolabras... | 303.4 KiB | 82.4 KiB |
Um boneco de madeira de mulher e um de homem, ambos com bengalas e com um coraç… div.item > a.item-context > picture > img | cdn.bb.com.br/wp-content/uploads/2022/12/Momentos-home-voce-previdencia-DT.jpg | 82.4 KiB | 57.0 KiB |
Fotografia de uma mulher sorrindo com fones de ouvido pendurados no pescoço. div.item > a.item-context > picture > img | /wp-content/uploads/2022/12/Momentos-home-voce-qual-carre... | 55.7 KiB | 44.0 KiB |
Mulher feliz com a sua conta corrente BB. bb-card-banner#cardBanner_6a10cc56c2f58 > div.bb-card-banner--image > picture > img | cdn.bb.com.br/wp-content/uploads/2023/09/Card_Banner-ContaBB-DT.png | 73.4 KiB | 40.5 KiB |
div > figure.banner-full__imagem > picture > img div > figure.banner-full__imagem > picture > img | /wp-content/uploads/2025/12/Banner_Full-Campanha_de_Credi... | 252.3 KiB | 32.3 KiB |
IIlustração de uma pessoa segurando embalagens de compra e caminhando ao lado d… div.item > a.item-context > picture > img | /wp-content/uploads/2022/12/Momentos-home-voce-educacao-f... | 41.1 KiB | 24.6 KiB |
Homem apontando para o dinheiro no bolso da sua camisa. div.item > a.item-context > picture > img | cdn.bb.com.br/wp-content/uploads/2022/09/bloco2-min.jpg | 25.0 KiB | 13.3 KiB |
Mulher analisando os seus investimentos no Banco do Brasil. div.item > a.item-context > picture > img | cdn.bb.com.br/wp-content/uploads/2022/09/bloco1-min.jpg | 33.5 KiB | 8.1 KiB |
Menina beijando a bochecha de uma mulher. div.item > a.item-context > picture > img | cdn.bb.com.br/wp-content/uploads/2022/09/unsplash_jgvKWT2iRtw-min.jpg | 31.5 KiB | 6.1 KiB |
logo Pix div.swiper-slide > a.card-item > div.image > img | cdn.bb.com.br/wp-content/uploads/2025/10/Pix-Logo-2.png | 6.1 KiB | 5.1 KiB |
imagem de acesso a informação div.container > div.image > a > img | cdn.bb.com.br/wp-content/uploads/2022/03/acesso_a_informacao.png | 5.7 KiB | 5.0 KiB |
Ilustração de uma calculadora. div.swiper-slide > a.card-item > div.image > img | cdn.bb.com.br/wp-content/uploads/2024/04/Icone-Pacotes-e-tarifas.png | 6.7 KiB | 4.4 KiB |
HTTP/2 and HTTP/3 offer many benefits over HTTP/1.1, such as multiplexing. Learn more about using modern HTTP.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| bb.com.br/ | 270 ms |
| bb.com.br/site | 77 ms |
| www.bb.com.br/site | 190 ms |
| www.bb.com.br/site | 187 ms |
| www.bb.com.br/site/ | 0.0 ms |
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.
Performance issues directly impact user engagement and conversion rates.
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.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/styles.css | 41.3 KiB | 38.5 KiB |
| /site/wp-content/plugins/elementor/assets/css/frontend-li... | 12.4 KiB | 11.9 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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 2.7 s |
| Parse HTML & CSS | 1.4 s |
| Other | 422 ms |
| Style & Layout | 234 ms |
| Script Parsing & Compilation | 159 ms |
| Garbage Collection | 61 ms |
| Rendering | 35 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
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure type |
|---|---|
| The page has an unload handler in the main frame. | Actionable |
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| cdn.evgnet.com/beacon/bancodobrasilsa/bb_prod/scripts/evergage.min.js | 52.5 KiB | 8.9 KiB |
| cdn.evgnet.com/beacon/bancodobrasilsa/bb_prod/scripts/evergage.min.js | 52.5 KiB | 8.9 KiB |
| inline: function decodeEntity(inputStr) { … | 7.8 KiB | 2.4 KiB |
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.
Performance issues directly impact user engagement and conversion rates.
Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions
Performance issues directly impact user engagement and conversion rates.
| URL | |
|---|---|
imagem de acesso a informação div.container > div.image > a > img | cdn.bb.com.br/wp-content/uploads/2022/03/acesso_a_informacao.png |
More information about the performance of your application. These numbers don't directly affect the Performance score.
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
Using ARIA attributes in roles where they are prohibited can mean that important information is not communicated to users of assistive technologies. Learn more about prohibited ARIA roles.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Segurança section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-0 > div.sbm-items__level-1__label |
Atendimento section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-1 > div.sbm-items__level-1__label |
Soluções Digitais section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-2 > div.sbm-items__level-1__label |
Open Finance section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-3 > div.sbm-items__level-1__label |
O BB section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-0 > div.sbm-items__level-1__label |
Blog BB section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-1 > div.sbm-items__level-1__label |
BB nas redes sociais section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-2 > div.sbm-items__level-1__label |
Coligadas section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-3 > div.sbm-items__level-1__label |
Acesso a informação section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-4 > div.sbm-items__level-1__label |
Transparência section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-5 > div.sbm-items__level-1__label |
Declaração de Acessibilidade section.sbm-items > ul.sbm-items__level-1 > li#menu-lateral-id-6 > div.sbm-items__level-1__label |
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Pra Você li > bb-navbar-select#pra-voc > button > span |
Pro Seu Negócio li > bb-navbar-select#pro-seu-negcio > button > span |
Agronegócios li > bb-navbar-select#agronegcios > button > span |
Setor Público li > bb-navbar-select#setor-pblico > button > span |
Pesquisar form > bb-text-field.mr-0 > div.bb-textfield-group > input#0086e5d6-01d2-4883-b01e-fbad5b3db907 |
ACESSE SUA CONTA div.d-none > bb-navbar-select#acesse-sua-conta > button > span |
ABRIR CONTA div.bb-card-banner--content > div.bb-card-banner--content--text > bb-link-nav.button > a.d-inline-flex |
SIMULE AQUI div.bb-card-image--content > div > div.group-buttons > button.button |
SAIBA MAIS div.bb-card-image--content > div > div.group-buttons > button.button |
ACESSE O SHOPPING BB div.bb-card-image--content > div > div.group-buttons > button.button |
Produtos div.item > a.item-context > bb-badge.bb-badge > span |
Produtos div.item > a.item-context > bb-badge.bb-badge > span |
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Crédito do Trabalhador
é no BB! div.col-16 > div.text-content > div > h3.bb-header-xlarge |
Cliente + Premiado div.col-16 > div.text-content > div > h3.bb-header-xlarge |
These are opportunities to improve keyboard navigation in your application.
Best Practices
General
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| SharedStorage | |
| StorageType.persistent is deprecated. Please use standardized navigator.storage instead. | |
| Fledge | |
| Unload event listeners are deprecated and will be removed. | cdn.appdynamics.com/adrum/adrum-24.4.0.4454.js line 206, col 460 |
| AttributionReporting |
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
Performance issues directly impact user engagement and conversion rates.
| Source | Description |
|---|---|
Access to fetch at 'https://portal.api.web.bb.com.br/writesonic' from origin 'https://www.bb.com.br' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource. | |
cdn.appdynamics.com/adrum/adrum-24.4.0.4454.js line 47, col 55 | Erro ao capturar breadcrumb: Error: Breadcrumb not found after max attempts
at checkExist (https://cdn.evgnet.com/beacon/bancodobrasilsa/bb_prod/scripts/evergage.min.js:1399:32)
at M.<computed> (https://cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/polyfills.min.js:2:12545)
at v.invokeTask (https://cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/polyfills.min.js:1:7063)
at L.runTask (https://cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/polyfills.min.js:1:2426)
at invokeTask (https://cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/polyfills.min.js:1:8134)
at k.useG.invoke (https://cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/polyfills.min.js:1:8035)
at y.args.<computed> (https://cdn.bb.com.br/wp-content/uploads/assets-dls-ngfifteen/polyfills.min.js:2:12262)
at b.xh (https://cdn.appdynamics.com/adrum/adrum-24.4.0.4454.js:42:146)
at https://cdn.appdynamics.com/adrum/adrum-24.4.0.4454.js:43:361 |
Failed to load resource: net::ERR_FAILED | |
Failed to load resource: the server responded with a status of 404 (Not Found) | |
cdn.appdynamics.com/adrum/adrum-24.4.0.4454.js line 143, col 460 | Uncaught (in promise) TypeError: Cannot read properties of undefined (reading 'url') |
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.
Performance issues directly impact user engagement and conversion rates.
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.