Values are estimated and may vary. The performance score is calculated directly from these metrics.See calculator.
0–49 50–89 90–100
Metrics
First Contentful Paint
0.8 s
First Contentful Paint marks the time at which the first text or image is painted. Learn more about the First Contentful Paint metric.
Largest Contentful Paint
0.8 s
Largest Contentful Paint marks the time at which the largest text or image is painted. Learn more about the Largest Contentful Paint metric
Total Blocking Time
30 ms
Sum of all time periods between FCP and Time to Interactive, when task length exceeded 50ms, expressed in milliseconds. Learn more about the Total Blocking Time metric.
Cumulative Layout Shift
0
Cumulative Layout Shift measures the movement of visible elements within the viewport. Learn more about the Cumulative Layout Shift metric.
Speed Index
1.1 s
Speed Index shows how quickly the contents of a page are visibly populated. Learn more about the Speed Index metric.
- Captured at Mar 18, 2026, 6:58 PM GMT-3
- Emulated Moto G Power with Lighthouse 13.0.1Unthrottled CPU/Memory Power: 487 CPU throttling: 1.2x slowdown (Simulated) Screen emulation: 412x823, DPR 1.75 Axe version: 4.11.0
- Single page sessionThis data is taken from a single page session, as opposed to field data summarizing many sessions.
- Initial page load
- Slow 4G throttlingNetwork throttling: 150 ms TCP RTT, 1,638.4 kb/s throughput (Simulated) Browser location: North America
- Using HeadlessChromium 145.0.7632.116 with lrUser agent (network): "Mozilla/5.0 (Linux; Android 11; moto g power (2022)) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/145.0.0.0 Mobile Safari/537.36"
Show audits relevant to:
Insights
Legacy JavaScript Est savings of 11 KiB
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 transpilingLCPFCPUnscored
URL | Wasted bytes | |
|---|---|---|
vercel.app 1st party | 11.5 KiB | |
…chunks/255-ebd51be49873d76c.js (v0-mba-fiap-fee-final-work.vercel.app) | 11.5 KiB | |
…chunks/255-ebd51be49873d76c.js:1:4077 (v0-mba-fiap-fee-final-work.vercel.app) | Array.prototype.at | |
…chunks/255-ebd51be49873d76c.js:1:3465 (v0-mba-fiap-fee-final-work.vercel.app) | Array.prototype.flat | |
…chunks/255-ebd51be49873d76c.js:1:3578 (v0-mba-fiap-fee-final-work.vercel.app) | Array.prototype.flatMap | |
…chunks/255-ebd51be49873d76c.js:1:3954 (v0-mba-fiap-fee-final-work.vercel.app) | Object.fromEntries | |
…chunks/255-ebd51be49873d76c.js:1:4212 (v0-mba-fiap-fee-final-work.vercel.app) | Object.hasOwn | |
…chunks/255-ebd51be49873d76c.js:1:3207 (v0-mba-fiap-fee-final-work.vercel.app) | String.prototype.trimEnd | |
…chunks/255-ebd51be49873d76c.js:1:3122 (v0-mba-fiap-fee-final-work.vercel.app) | String.prototype.trimStart |
LCP breakdown
Each subpart has specific improvement strategies. Ideally, most of the LCP time should be spent on loading the resources, not within delays.LCPUnscored
Subpart | Duration |
|---|---|
Time to first byte | 0 ms |
Element render delay | 560 ms |
Significado: O cheiro terroso e agradável que sobe do solo quando a chuva cai a…
<p class="MuiTypography-root MuiTypography-body1 MuiTypography-paragraph css-1h3vj05" data-testid="description-0">
Diagnostics
Reduce unused JavaScript Est savings of 41 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.LCPFCPUnscored
URL | Transfer Size | Est Savings |
|---|---|---|
vercel.app 1st party | 98.8 KiB | 41.2 KiB |
…chunks/4bd1b696-c023c6e3521b1417.js (v0-mba-fiap-fee-final-work.vercel.app) | 54.2 KiB | 20.9 KiB |
…chunks/255-ebd51be49873d76c.js (v0-mba-fiap-fee-final-work.vercel.app) | 44.5 KiB | 20.4 KiB |
Avoid long main-thread tasks 1 long task found
Lists the longest tasks on the main thread, useful for identifying worst contributors to input delay. Learn how to avoid long main-thread tasksTBTUnscored
URL | Start Time | Duration |
|---|---|---|
vercel.app 1st party | 78 ms | |
…chunks/4bd1b696-c023c6e3521b1417.js (v0-mba-fiap-fee-final-work.vercel.app) | 1,501 ms | 78 ms |
Passed audits (23) Show Hide
Passed audits (23)
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Use efficient cache lifetimes
A long cache lifetime can speed up repeat visits to your page. Learn more about caching.LCPFCPUnscored
Layout shift culprits
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.CLSUnscored
Document request latency
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.LCPFCPUnscored
- Avoids redirects
- Server responds quickly (observed 1 ms)
- Applies text compression
Optimize DOM size
A large DOM can increase the duration of style calculations and layout reflows, impacting page responsiveness. A large DOM will also increase memory usage. Learn how to avoid an excessive DOM size.Unscored
Statistic | Element | Value |
|---|---|---|
Total elements | 100 | |
DOM depth | .css-b9zgoq{overflow:hidden;text-overflow:ellipsis;padding-left:12px;padding-ri… <style data-emotion="css b9zgoq" data-s=""> | 10 |
Most children | body <body> | 12 |
Duplicated JavaScript
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.LCPFCPUnscored
Font display
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.Unscored
Forced reflow
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.Unscored
Improve image delivery
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image sizeLCPFCPUnscored
INP breakdown
Start investigating how to improve INP by looking at the longest subpart.Unscored
LCP request discovery
Optimize LCP by making the LCP image discoverable from the HTML immediately, and avoiding lazy-loadingUnscored
Network dependency tree
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.LCPUnscored
Maximum critical path latency: 528 ms
Initial Navigation
- 528 ms, 6.34 KiB
Preconnected origins
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.
no origins were preconnected
Preconnect candidates
Add preconnect hints to your most important origins, but try to use no more than 4.
No additional origins are good candidates for preconnecting
Render blocking requests
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.LCPFCPUnscored
3rd parties
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.Unscored
Optimize viewport for mobile
Tap interactions may be delayed by up to 300 ms if the viewport is not optimized for mobile.Unscored
head > meta <meta name="viewport" content="width=device-width, initial-scale=1"> |
Minify CSS
Minify JavaScript
Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.LCPFCPUnscored
Reduce unused CSS
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.LCPFCPUnscored
Avoids enormous network payloads Total size was 171 KiB
Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.Unscored
URL | Transfer Size |
|---|---|
vercel.app 1st party | 171.4 KiB |
…chunks/4bd1b696-c023c6e3521b1417.js (v0-mba-fiap-fee-final-work.vercel.app) | 55.0 KiB |
…chunks/255-ebd51be49873d76c.js (v0-mba-fiap-fee-final-work.vercel.app) | 45.3 KiB |
…chunks/193-0b5c16df9a2997b5.js (v0-mba-fiap-fee-final-work.vercel.app) | 27.3 KiB |
…chunks/363-53c88a6b81357116.js (v0-mba-fiap-fee-final-work.vercel.app) | 22.8 KiB |
6.3 KiB | |
…chunks/598-30384b1f7ec7b5f3.js (v0-mba-fiap-fee-final-work.vercel.app) | 5.6 KiB |
…app/page-e4f7c689aa2243c5.js (v0-mba-fiap-fee-final-work.vercel.app) | 4.0 KiB |
…chunks/webpack-30b9dd9193356b11.js (v0-mba-fiap-fee-final-work.vercel.app) | 2.6 KiB |
…app/layout-c13632a76caf7e96.js (v0-mba-fiap-fee-final-work.vercel.app) | 1.4 KiB |
…chunks/main-app-f9b5d20365cb8be2.js (v0-mba-fiap-fee-final-work.vercel.app) | 1.2 KiB |
User Timing marks and measures
Consider instrumenting your app with the User Timing API to measure your app's real-world performance during key user experiences. Learn more about User Timing marks.Unscored
JavaScript execution time 0.2 s
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.TBTUnscored
URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
vercel.app 1st party | 154 ms | 128 ms | 24 ms |
…chunks/4bd1b696-c023c6e3521b1417.js (v0-mba-fiap-fee-final-work.vercel.app) | 81 ms | 68 ms | 13 ms |
…chunks/255-ebd51be49873d76c.js (v0-mba-fiap-fee-final-work.vercel.app) | 73 ms | 60 ms | 11 ms |
Minimizes main-thread work 0.3 s
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 workTBTUnscored
Category | Time Spent |
|---|---|
Script Evaluation | 152 ms |
Script Parsing & Compilation | 41 ms |
Other | 34 ms |
Style & Layout | 20 ms |
Parse HTML & CSS | 3 ms |
Rendering | 2 ms |
Avoid non-composited animations
Animations which are not composited can be janky and increase CLS. Learn how to avoid non-composited animationsCLSUnscored
Image elements have explicit width and height
width and height Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensionsCLSUnscored
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
Background and foreground colors do not have a sufficient contrast ratio.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Failing Elements |
|---|
Memorise estas 5 palavras antes de começar o quiz <h6 class="MuiTypography-root MuiTypography-h6 css-up3f0w"> |
Aprendendo Vocabulário em Inglês
Memorise estas 5 palavras antes de começar o q… <div class="MuiPaper-root MuiPaper-elevation MuiPaper-rounded MuiPaper-elevation1 css-…" style="--Paper-shadow: 0px 2px 1px -1px rgba(0,0,0,0.2),0px 1px 1px 0px rgba(0,0,0…;"> |
Exemplo: Eu amo o aroma de petrichor que preenche o ar logo após uma tempestade… <p class="MuiTypography-root MuiTypography-body2 css-1m1ikss" data-testid="usecase-0"> |
Exemplo: Eu amo o aroma de petrichor que preenche o ar logo após uma tempestade… <div class="MuiBox-root css-jcowb3"> |
Exemplo: <strong> |
Exemplo: Eu amo o aroma de petrichor que preenche o ar logo após uma tempestade… <div class="MuiBox-root css-jcowb3"> |
Exemplo: Conhecer meu mentor naquela cafeteria pequena foi uma verdadeira seren… <p class="MuiTypography-root MuiTypography-body2 css-1m1ikss" data-testid="usecase-1"> |
Exemplo: Conhecer meu mentor naquela cafeteria pequena foi uma verdadeira seren… <div class="MuiBox-root css-jcowb3"> |
Exemplo: <strong> |
Exemplo: Conhecer meu mentor naquela cafeteria pequena foi uma verdadeira seren… <div class="MuiBox-root css-jcowb3"> |
Exemplo: Hoje em dia, o acesso à internet tornou-se ubíquo na maioria das áreas… <p class="MuiTypography-root MuiTypography-body2 css-1m1ikss" data-testid="usecase-2"> |
Exemplo: Hoje em dia, o acesso à internet tornou-se ubíquo na maioria das áreas… <div class="MuiBox-root css-jcowb3"> |
Exemplo: <strong> |
Exemplo: Hoje em dia, o acesso à internet tornou-se ubíquo na maioria das áreas… <div class="MuiBox-root css-jcowb3"> |
Exemplo: A beleza das flores de cerejeira é efêmera, pois elas florescem e caem… <p class="MuiTypography-root MuiTypography-body2 css-1m1ikss" data-testid="usecase-3"> |
Exemplo: A beleza das flores de cerejeira é efêmera, pois elas florescem e caem… <div class="MuiBox-root css-jcowb3"> |
Exemplo: <strong> |
Exemplo: A beleza das flores de cerejeira é efêmera, pois elas florescem e caem… <div class="MuiBox-root css-jcowb3"> |
Exemplo: A lua estava tão luminosa que conseguíamos caminhar pela trilha sem o … <p class="MuiTypography-root MuiTypography-body2 css-1m1ikss" data-testid="usecase-4"> |
Exemplo: A lua estava tão luminosa que conseguíamos caminhar pela trilha sem o … <div class="MuiBox-root css-jcowb3"> |
Exemplo: <strong> |
Exemplo: A lua estava tão luminosa que conseguíamos caminhar pela trilha sem o … <div class="MuiBox-root css-jcowb3"> |
Navigation
Heading elements are not in a sequentially-descending order
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.
Failing Elements |
|---|
Memorise estas 5 palavras antes de começar o quiz <h6 class="MuiTypography-root MuiTypography-h6 css-up3f0w"> |
Additional items to manually check (10) Show Hide
Additional items to manually check (10)
Show Hide
Interactive controls are keyboard focusable
Custom interactive controls are keyboard focusable and display a focus indicator. Learn how to make custom controls focusable.Unscored
Interactive elements indicate their purpose and state
Interactive elements, such as links and buttons, should indicate their state and be distinguishable from non-interactive elements. Learn how to decorate interactive elements with affordance hints.Unscored
The page has a logical tab order
Tabbing through the page follows the visual layout. Users cannot focus elements that are offscreen. Learn more about logical tab ordering.Unscored
Visual order on the page follows DOM order
DOM order matches the visual order, improving navigation for assistive technology. Learn more about DOM and visual ordering.Unscored
User focus is not accidentally trapped in a region
A user can tab into and out of any control or region without accidentally trapping their focus. Learn how to avoid focus traps.Unscored
The user's focus is directed to new content added to the page
If new content, such as a dialog, is added to the page, the user's focus is directed to it. Learn how to direct focus to new content.Unscored
HTML5 landmark elements are used to improve navigation
Landmark elements (
<main>, <nav>, etc.) are used to improve the keyboard navigation of the page for assistive technology. Learn more about landmark elements.Unscored Offscreen content is hidden from assistive technology
Offscreen content is hidden with display: none or aria-hidden=true. Learn how to properly hide offscreen content.Unscored
Custom controls have associated labels
Custom interactive controls have associated labels, provided by aria-label or aria-labelledby. Learn more about custom controls and labels.Unscored
Custom controls have ARIA roles
Custom interactive controls have appropriate ARIA roles. Learn how to add roles to custom controls.Unscored
Passed audits (17) Show Hide
Passed audits (17)
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[aria-*] attributes match their roles
[aria-*] attributes match their roles Each ARIA
role supports a specific subset of aria-* attributes. Mismatching these invalidates the aria-* attributes. Learn how to match ARIA attributes to their roles. [aria-hidden="true"] is not present on the document <body>
[aria-hidden="true"] is not present on the document <body> Assistive technologies, like screen readers, work inconsistently when
aria-hidden="true" is set on the document <body>. Learn how aria-hidden affects the document body. [role]s have all required [aria-*] attributes
[role]s have all required [aria-*] attributes Some ARIA roles have required attributes that describe the state of the element to screen readers. Learn more about roles and required attributes.
[role] values are valid
[role] values are valid ARIA roles must have valid values in order to perform their intended accessibility functions. Learn more about valid ARIA roles.
[aria-*] attributes have valid values
[aria-*] attributes have valid values Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.
[aria-*] attributes are valid and not misspelled
[aria-*] attributes are valid and not misspelled Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid names. Learn more about valid ARIA attributes.
Buttons have an accessible name
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.
[user-scalable="no"] is not used in the <meta name="viewport"> element and the [maximum-scale] attribute is not less than 5.
[user-scalable="no"] is not used in the <meta name="viewport"> element and the [maximum-scale] attribute is not less than 5. 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.
ARIA attributes are used as specified for the element's role
Some ARIA attributes are only allowed on an element under certain conditions. Learn more about conditional ARIA attributes.
Elements use only permitted ARIA attributes
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.
Document has a <title> element
<title> element The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more about document titles.
<html> element has a [lang] attribute
<html> element has a [lang] attribute If a page doesn't specify a
lang attribute, a screen reader assumes that the page is in the default language that the user chose when setting up the screen reader. If the page isn't actually in the default language, then the screen reader might not announce the page's text correctly. Learn more about the lang attribute. <html> element has a valid value for its [lang] attribute
<html> element has a valid value for its [lang] attribute Specifying a valid BCP 47 language helps screen readers announce text properly. Learn how to use the
lang attribute. No element has a [tabindex] value greater than 0
[tabindex] value greater than 0 A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the
tabindex attribute. Touch targets have sufficient size and spacing.
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.
Document has a main landmark.
One main landmark helps screen reader users navigate a web page. Learn more about landmarks.
Deprecated ARIA roles were not used
Deprecated ARIA roles may not be processed correctly by assistive technology. Learn more about deprecated ARIA roles.
Not applicable (41) Show Hide
Not applicable (41)
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[accesskey] values are unique
[accesskey] values are unique Access keys let users quickly focus a part of the page. For proper navigation, each access key must be unique. Learn more about access keys.Unscored
button, link, and menuitem elements have accessible names
button, link, and menuitem elements have accessible names When an element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to make command elements more accessible.Unscored
Elements with role="dialog" or role="alertdialog" have accessible names.
role="dialog" or role="alertdialog" have accessible names. 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.Unscored
[aria-hidden="true"] elements do not contain focusable descendents
[aria-hidden="true"] elements do not contain focusable descendents 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.Unscored ARIA input fields have accessible names
When an input field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about input field labels.Unscored
ARIA meter elements have accessible names
meter elements have accessible names When a meter element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to name
meter elements.Unscored ARIA progressbar elements have accessible names
progressbar elements have accessible names When a
progressbar element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to label progressbar elements.Unscored Elements with an ARIA [role] that require children to contain a specific [role] have all required children.
[role] that require children to contain a specific [role] have all required children. Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.Unscored
[role]s are contained by their required parent element
[role]s are contained by their required parent element Some ARIA child roles must be contained by specific parent roles to properly perform their intended accessibility functions. Learn more about ARIA roles and required parent element.Unscored
Elements with the role=text attribute do not have focusable descendents.
role=text attribute do not have focusable descendents. Adding
role=text around a text node split by markup enables VoiceOver to treat it as one phrase, but the element's focusable descendents will not be announced. Learn more about the role=text attribute.Unscored ARIA toggle fields have accessible names
When a toggle field doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about toggle fields.Unscored
ARIA tooltip elements have accessible names
tooltip elements have accessible names When a tooltip element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn how to name
tooltip elements.Unscored ARIA treeitem elements have accessible names
treeitem elements have accessible names When a
treeitem element doesn't have an accessible name, screen readers announce it with a generic name, making it unusable for users who rely on screen readers. Learn more about labeling treeitem elements.Unscored The page contains a heading, skip link, or landmark region
Adding ways to bypass repetitive content lets keyboard users navigate the page more efficiently. Learn more about bypass blocks.Unscored
<dl>'s contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements.
<dl>'s contain only properly-ordered <dt> and <dd> groups, <script>, <template> or <div> elements. When definition lists are not properly marked up, screen readers may produce confusing or inaccurate output. Learn how to structure definition lists correctly.Unscored
Definition list items are wrapped in <dl> elements
<dl> elements Definition list items (
<dt> and <dd>) must be wrapped in a parent <dl> element to ensure that screen readers can properly announce them. Learn how to structure definition lists correctly.Unscored ARIA IDs are unique
The value of an ARIA ID must be unique to prevent other instances from being overlooked by assistive technologies. Learn how to fix duplicate ARIA IDs.Unscored
No form fields have multiple labels
Form fields with multiple labels can be confusingly announced by assistive technologies like screen readers which use either the first, the last, or all of the labels. Learn how to use form labels.Unscored
<frame> or <iframe> elements have a title
<frame> or <iframe> elements have a title Screen reader users rely on frame titles to describe the contents of frames. Learn more about frame titles.Unscored
<html> element has an [xml:lang] attribute with the same base language as the [lang] attribute.
<html> element has an [xml:lang] attribute with the same base language as the [lang] attribute. If the webpage does not specify a consistent language, then the screen reader might not announce the page's text correctly. Learn more about the
lang attribute.Unscored Image elements have [alt] attributes
[alt] attributes 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.Unscored Input buttons have discernible text.
Adding discernable and accessible text to input buttons may help screen reader users understand the purpose of the input button. Learn more about input buttons.Unscored
<input type="image"> elements have [alt] text
<input type="image"> elements have [alt] text When an image is being used as an
<input> button, providing alternative text can help screen reader users understand the purpose of the button. Learn about input image alt text.Unscored Form elements have associated labels
Labels ensure that form controls are announced properly by assistive technologies, like screen readers. Learn more about form element labels.Unscored
Links are distinguishable without relying on color.
Low-contrast text is difficult or impossible for many users to read. Link text that is discernible improves the experience for users with low vision. Learn how to make links distinguishable.Unscored
Links have a discernible name
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.Unscored
Lists contain only <li> elements and script supporting elements (<script> and <template>).
<li> elements and script supporting elements (<script> and <template>). Screen readers have a specific way of announcing lists. Ensuring proper list structure aids screen reader output. Learn more about proper list structure.Unscored
List items (<li>) are contained within <ul>, <ol> or <menu> parent elements
<li>) are contained within <ul>, <ol> or <menu> parent elements Screen readers require list items (
<li>) to be contained within a parent <ul>, <ol> or <menu> to be announced properly. Learn more about proper list structure.Unscored The document does not use <meta http-equiv="refresh">
<meta http-equiv="refresh"> Users do not expect a page to refresh automatically, and doing so will move focus back to the top of the page. This may create a frustrating or confusing experience. Learn more about the refresh meta tag.Unscored
<object> elements have alternate text
<object> elements have alternate text Screen readers cannot translate non-text content. Adding alternate text to
<object> elements helps screen readers convey meaning to users. Learn more about alt text for object elements.Unscored Select elements have associated label elements.
Form elements without effective labels can create frustrating experiences for screen reader users. Learn more about the
select element.Unscored Skip links are focusable.
Including a skip link can help users skip to the main content to save time. Learn more about skip links.Unscored
Cells in a <table> element that use the [headers] attribute refer to table cells within the same table.
<table> element that use the [headers] attribute refer to table cells within the same table. Screen readers have features to make navigating tables easier. Ensuring
<td> cells using the [headers] attribute only refer to other cells in the same table may improve the experience for screen reader users. Learn more about the headers attribute.Unscored <th> elements and elements with [role="columnheader"/"rowheader"] have data cells they describe.
<th> elements and elements with [role="columnheader"/"rowheader"] have data cells they describe. Screen readers have features to make navigating tables easier. Ensuring table headers always refer to some set of cells may improve the experience for screen reader users. Learn more about table headers.Unscored
[lang] attributes have a valid value
[lang] attributes have a valid value Specifying a valid BCP 47 language on elements helps ensure that text is pronounced correctly by a screen reader. Learn how to use the
lang attribute.Unscored <video> elements contain a <track> element with [kind="captions"]
<video> elements contain a <track> element with [kind="captions"] When a video provides a caption it is easier for deaf and hearing impaired users to access its information. Learn more about video captions.Unscored
Tables have different content in the summary attribute and <caption>.
<caption>. The summary attribute should describe the table structure, while
<caption> should have the onscreen title. Accurate table mark-up helps users of screen readers. Learn more about summary and caption.Unscored All heading elements contain content.
A heading with no content or inaccessible text prevent screen reader users from accessing information on the page's structure. Learn more about headings.Unscored
Uses ARIA roles only on compatible elements
Many HTML elements can only be assigned certain ARIA roles. Using ARIA roles where they are not allowed can interfere with the accessibility of the web page. Learn more about ARIA roles.Unscored
Image elements do not have [alt] attributes that are redundant text.
[alt] attributes that are redundant text. Informative elements should aim for short, descriptive alternative text. Alternative text that is exactly the same as the text adjacent to the link or image is potentially confusing for screen reader users, because the text will be read twice. Learn more about the
alt attribute.Unscored Identical links have the same purpose.
Links with the same destination should have the same description, to help users understand the link's purpose and decide whether to follow it. Learn more about identical links.Unscored
Trust and Safety
Ensure CSP is effective against XSS attacks
A strong Content Security Policy (CSP) significantly reduces the risk of cross-site scripting (XSS) attacks. Learn how to use a CSP to prevent XSSUnscored
Description | Directive | Severity |
|---|---|---|
No CSP found in enforcement mode | High |
Ensure proper origin isolation with COOP
The Cross-Origin-Opener-Policy (COOP) can be used to isolate the top-level window from other documents such as pop-ups. Learn more about deploying the COOP header.Unscored
Description | Directive | Severity |
|---|---|---|
No COOP header found | High |
Mitigate clickjacking with XFO or CSP
The
X-Frame-Options (XFO) header or the frame-ancestors directive in the Content-Security-Policy (CSP) header control where a page can be embedded. These can mitigate clickjacking attacks by blocking some or all sites from embedding the page. Learn more about mitigating clickjacking.UnscoredDescription | Severity |
|---|---|
No frame control policy found | High |
Mitigate DOM-based XSS with Trusted Types
The
require-trusted-types-for directive in the Content-Security-Policy (CSP) header instructs user agents to control the data passed to DOM XSS sink functions. Learn more about mitigating DOM-based XSS with Trusted Types.UnscoredDescription | Severity |
|---|---|
No `Content-Security-Policy` header with Trusted Types directive found | High |
Passed audits (13) Show Hide
Passed audits (13)
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Uses HTTPS
All sites should be protected with HTTPS, even ones that don't handle sensitive data. This includes avoiding mixed content, where some resources are loaded over HTTP despite the initial request being served over HTTPS. HTTPS prevents intruders from tampering with or passively listening in on the communications between your app and your users, and is a prerequisite for HTTP/2 and many new web platform APIs. Learn more about HTTPS.
Avoids deprecated APIs
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Avoids third-party cookies
Third-party cookies may be blocked in some contexts. Learn more about preparing for third-party cookie restrictions.
Allows users to paste into input fields
Preventing input pasting is a bad practice for the UX, and weakens security by blocking password managers.Learn more about user-friendly input fields.
Avoids requesting the geolocation permission on page load
Users are mistrustful of or confused by sites that request their location without context. Consider tying the request to a user action instead. Learn more about the geolocation permission.
Avoids requesting the notification permission on page load
Users are mistrustful of or confused by sites that request to send notifications without context. Consider tying the request to user gestures instead. Learn more about responsibly getting permission for notifications.
Displays images with correct aspect ratio
Image display dimensions should match natural aspect ratio. Learn more about image aspect ratio.
Serves images with appropriate resolution
Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.
Page has the HTML doctype
Specifying a doctype prevents the browser from switching to quirks-mode. Learn more about the doctype declaration.
Properly defines charset
A character encoding declaration is required. It can be done with a
<meta> tag in the first 1024 bytes of the HTML or in the Content-Type HTTP response header. Learn more about declaring the character encoding. No browser errors logged to the console
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
No issues in the Issues panel in Chrome Devtools
Issues panel in Chrome Devtools 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. Page has valid source maps
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.Unscored
Not applicable (3) Show Hide
Not applicable (3)
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Redirects HTTP traffic to HTTPS
Make sure that you redirect all HTTP traffic to HTTPS in order to enable secure web features for all your users. Learn more.Unscored
Use a strong HSTS policy
Deployment of the HSTS header significantly reduces the risk of downgrading HTTP connections and eavesdropping attacks. A rollout in stages, starting with a low max-age is recommended. Learn more about using a strong HSTS policy.Unscored
Detected JavaScript libraries
All front-end JavaScript libraries detected on the page. Learn more about this JavaScript library detection diagnostic audit.Unscored
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.
Additional items to manually check (1) Show Hide
Additional items to manually check (1)
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Structured data is valid
Run the Structured Data Testing Tool to validate structured data. Learn more about Structured Data.Unscored
Passed audits (7) Show Hide
Passed audits (7)
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Page isn’t blocked from indexing
Search engines are unable to include your pages in search results if they don't have permission to crawl them. Learn more about crawler directives.
Document has a <title> element
<title> element The title gives screen reader users an overview of the page, and search engine users rely on it heavily to determine if a page is relevant to their search. Learn more about document titles.
Document has a meta description
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
Page has successful HTTP status code
Pages with unsuccessful HTTP status codes may not be indexed properly. Learn more about HTTP status codes.
Links have descriptive text
Descriptive link text helps search engines understand your content. Learn how to make links more accessible.
Links are crawlable
Search engines may use
href attributes on links to crawl websites. Ensure that the href attribute of anchor elements links to an appropriate destination, so more pages of the site can be discovered. Learn how to make links crawlable Document has a valid hreflang
hreflang hreflang links tell search engines what version of a page they should list in search results for a given language or region. Learn more about
hreflang. Not applicable (3) Show Hide
Not applicable (3)
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robots.txt is valid
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.Unscored
Image elements have [alt] attributes
[alt] attributes 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.Unscored Document has a valid rel=canonical
rel=canonical Canonical links suggest which URL to show in search results. Learn more about canonical links.Unscored
