Lighthouse Mobile
· 0 checks — Mobile 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.
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.
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.
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.
Performance issues directly impact user engagement and conversion rates.
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loading
Performance issues directly impact user engagement and conversion rates.
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.
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.
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.
| URL | Transfer Size | Duration |
|---|---|---|
| banco.bradesco/assets/common/css/intervencao-neb.css | 2.5 KiB | 166 ms |
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 | |
|---|---|---|---|
#BradescoAcessível #PraTodoMundoVer: Banner dividido em duas partes. Na parte s… div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... | 96.0 KiB | 48.6 KiB |
#BradescoAcessível #ParaTodoMundoVer: Banner publicitário do Bradesco com fundo… div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... | 82.6 KiB | 35.2 KiB |
BIA div.cmp-floating-bia > div.cmp-floating-bia__container > div.cmp-floating-bia__icon-wrapper > img.cmp-floating-bia__icon | /content/dam/banco-bradesco/assets/bia/arquivos/Caminho 6... | 5.2 KiB | 4.4 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.
Performance issues directly impact user engagement and conversion rates.
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 |
|---|---|
| banco.bradesco/ | 766 ms |
| banco.bradesco/html/classic/index.shtm | 0.0 ms |
Keep the server response time for the main document short because all other requests depend on it. Learn more about the Time to First Byte metric.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| banco.bradesco/html/classic/index.shtm | 830 ms |
These are the largest layout shifts observed on the page. Each table item represents a single layout shift, and shows the element that shifted the most. Below each item are possible root causes that led to the layout shift. Some of these layout shifts may not be included in the CLS metric value due to windowing. Learn how to improve CLS
Performance issues directly impact user engagement and conversion rates.
| Element | Layout shift score |
|---|---|
Contrate on-line, mesmo sem conta-corrente
Renegocie suas dívidas
Peça seu ca… body > div.item-to-add-padding > section.online-hire | 0.166 |
Contrate on-line, mesmo sem conta-corrente section.online-hire > a > div.non-account-holder > span | 0.007 |
Conheça mais opções div.cards > div.card-destaque > a.card-link-destaque > p.text-destaque | 0.000 |
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 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 | 4.1 s |
| Other | 2.1 s |
| Style & Layout | 761 ms |
| Script Parsing & Compilation | 671 ms |
| Rendering | 427 ms |
| Parse HTML & CSS | 78 ms |
| Garbage Collection | 74 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 |
|---|---|
| Pages with cache-control:no-store header cannot enter back/forward cache. | Actionable |
| Pages whose main resource has cache-control:no-store cannot enter back/forward cache. | Not actionable |
| Back/forward cache is disabled because some JavaScript network request received resource with Cache-Control: no-store header. | Not 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/bradesco/bu_bradesco_237/scripts/evergage.min.js | 105.8 KiB | 42.6 KiB |
| banco.bradesco/assets/common/js/valida_agenciaconta.js?nc=20210920 | 5.7 KiB | 2.3 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 | |
|---|---|
#BradescoAcessível #PraTodoMundoVer: Banner do programa Desenrola Brasil em par… div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... |
#BradescoAcessível #ParaTodoMundoVer: Banner publicitário do Bradesco com fundo… div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... |
#BradescoAcessível #PraTodoMundoVer: Banner dividido em duas partes. Na parte s… div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... |
#BradescoAcessível #PraTodoMundoVer: Banner da "Promoção Cartão que dá Jogo". A… div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... |
#BradescoAcessível #PraTodoMundoVer: Banner com a frase em destaque: "Abra sua … div.swiper-slide > button > picture > img | /content/dam/banco-bradesco/banners/homes/classic/imagens... |
Logo Bradesco div.footer__brand > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/logo-bradesco.svg |
X li > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/x.png |
linkedin li > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/linkedin-01.svg |
facebook li > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/facebook-01.svg |
youtube li > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/youtube-01.svg |
instagram li > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/instagram-01.svg |
tiktok li > a > picture > img | banco.bradesco/static/wcomp/header-footer-v2/assets/common/svg/tiktok-01.svg |
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
Focusable descendents within an `[aria-hidden="true"]` element prevent those interactive elements from being available to users of assistive technologies like screen readers. Learn how `aria-hidden` affects focusable elements.
Informational: a Permissions-Policy directive showing feature -> allowed origins.
Source: MDN Permissions-Policy
| Failing Elements |
|---|
App Bradesco
Experimente uma
vida mais prática div.carrossel-destaques > div.slick-list > div.slick-track > div.destaque |
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.
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.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
li#info-2 > ul.footer__info-atendimento > li > a li#info-2 > ul.footer__info-atendimento > li > a |
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
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
html html |
These items highlight common accessibility best practices.
Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
Ok body > header.header > div.header__mobile > a.header__mobile-button |
PREFERÊNCIA COOKIES nav > ul > li > a |
Best Practices
User Experience
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Performance issues directly impact user engagement and conversion rates.
| URL | Aspect Ratio (Displayed) | Aspect Ratio (Actual) | |
|---|---|---|---|
background busca div.item-to-add-padding > div.modal-busca > picture > img.background-busca | /content/dam/portal-bradesco/assets/classic/home/images/s... | 1436 x 793 (1.81) | 360 x 640 (0.56) |
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
Performance issues directly impact user engagement and conversion rates.
| URL | Displayed size | Actual size | Expected size | |
|---|---|---|---|---|
Pessoas apertando as mãos div.item-container > div.item > picture > img | /content/dam/portal-bradesco/assets/classic/home/images/s... | 152 x 100 | 152 x 100 | 228 x 150 |
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 |
|---|---|
| AttributionReporting | connect.facebook.net/en_US/fbevents.js line 279, col 1174 |
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 |
|---|---|
Creating a worker from 'blob:https://banco.bradesco/3a28969a-5bc6-4932-a262-81943f534f7b' violates the following Content Security Policy directive: "default-src * 'self' 'unsafe-inline' 'unsafe-hashes' 'unsafe-eval' nic.bradesco imprensa.bradesco vivaprime.bradesco assets.bradesco *.prebanco.com.br *.adobedtm.com *.bing.com *.google.com *.google.com.br *.facebook.com *.facebook.net *.youtube.com *.youtube.com.br *.tiktok.com *.googleapis.com https://fonts.gstatic.com *.googletagmanager.com *.google-analytics.com *.googleadservices.com https://canalconsorciado.bradesco.com.br *.googleoptimize.com static.ads-twitter.com *.doubleclick.net *.rybena.com.br *.navdmp.com t.co https://banco.bradesco *.bradesco.com.br *.banco.bradesco *.interneth.bradesco.com.br *.bradescopessoajuridica.com.br *.bradescocelular.com.br *.omny.fm *.ggpht.com *.ytimg.com https://turn2c-sandbox.com https://wa.onelink.me https://apps.sae1.pure.cloud *.virtualearth.net https://bancobradesco.tt.omtrdc.net https://dpm.demdex.net https://www.unibrad.com.br". Note that 'worker-src' was not explicitly set, so 'default-src' is used as a fallback. Note that '*' matches only URLs with network schemes ('http', 'https', 'ws', 'wss'), or URLs whose scheme matches `self`'s scheme. The scheme 'blob:' must be added explicitly. The action has been blocked. |
Issues logged to the `Issues` panel in Chrome Devtools indicate unresolved problems. They can come from network request failures, insufficient security controls, and other browser concerns. Open up the Issues panel in Chrome DevTools for more details on each issue.
Performance issues directly impact user engagement and conversion rates.
| Issue type |
|---|
| Content security policy |
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.
Content Best Practices
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Performance issues directly impact user engagement and conversion rates.
Format your HTML in a way that enables crawlers to better understand your app’s content.
Crawling and Indexing
If your robots.txt file is malformed, crawlers may not be able to understand how you want your website to be crawled or indexed. Learn more about robots.txt.
Performance issues directly impact user engagement and conversion rates.
| Line # | Content | Error |
|---|---|---|
| 19 | Disallow: https://wspf.bradesco.com.br/wsabrasuaconta/site/Formulario-paravoce.aspx | Pattern should either be empty, start with "/" or "*" |
To appear in search results, crawlers need access to your app.