Skip to content
https://prevention.com

Lighthouse Desktop

· 0 checks — Desktop Lighthouse audit -- Performance, Accessibility, Best Practices, and SEO category breakdown.
SCORE
0
GRADE
FIX
0
REVIEW
0
PASS
0
INFO
0

Detailed Report

Audit breakdown by category with detailed findings.

67

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:node label:Element subItemsHeading:map[key:extra] valueType:node] map[granularity:0.001 key:score label:Layout shift score subItemsHeading:map[key:cause valueType:text] valueType:numeric]]
items: [map[node:map[type:text value:Total] score:0.101647] map[node:map[boundingRect:map[bottom:7926 height:7771 left:0 right:1350 top:155 width:1350] lhId:page-6-MAIN nodeLabel:Scientists Discover 1 Simple Habit That Could Half Heart Disease Risk in Some D… path:1,HTML,1,BODY,1,DIV,10,MAIN selector:body > div#__next > main#main-content snippet:<main id="main-content" class="css-rk6tbh ewq0ot91"> type:node] score:0.07697 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:709 height:393 left:75 right:862 top:316 width:787] lhId:page-0-IMG nodeLabel:Senior woman in hospital bed path:1,HTML,1,BODY,1,DIV,10,MAIN,2,SECTION,0,DIV,0,A,0,DIV,0,DIV,0,PICTURE,6,IMG selector:div.css-79elbk > div.__resp-container > picture.css-0 > img snippet:<img src="https://hips.hearstapps.com/hmg-prod/images/31542bf2-3a06-4d29-9c28-c4f5d4…" alt="Senior woman in hospital bed" width="7988" height="5328" decoding="async" loading="lazy" sizes="100vw"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:907 height:148 left:882 right:1275 top:759 width:393] lhId:page-1-A nodeLabel:Doctor-Recommended Home Remedies for UTI Relief path:1,HTML,1,BODY,1,DIV,10,MAIN,2,SECTION,0,DIV,1,DIV,0,DIV,3,A selector:div.css-1o1ws1x > div > div.css-hhmn3a > a.ee4ms354 snippet:<a data-theme-key="custom-item" label="" data-vars-cta=" 4" data-vars-ga-position="5" data-vars-ga-call-to-action="Doctor-Recommended Home Remedies for UTI Relief" data-vars-ga-outbound-link="https://www.prevention.com/health/a71042510/doctor-recommended-remedies-ut…" data-vars-ga-ux-element="big_story_feed_block" href="/health/a71042510/doctor-recommended-remedies-uti-symptoms/" class="ee4ms354 css-95hrmj e1socmtw0"> type:node] score:0.024677 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:454 height:138 left:882 right:1019 top:316 width:138] lhId:page-12-IMG nodeLabel:Doctor Going Over Test Results With Patient path:1,HTML,1,BODY,1,DIV,10,MAIN,2,SECTION,0,DIV,1,DIV,0,DIV,0,A,0,DIV,0,DIV,0,IMG selector:a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img.css-0 snippet:<img alt="Doctor Going Over Test Results With Patient" loading="lazy" width="6230" height="4153" decoding="async" data-nimg="1" style="color:transparent;width:100%;height:auto;" sizes="100vw" srcset="https://hips.hearstapps.com/hmg-prod/images/92d70e6c-b706-4a09-974e-8ef11f…" src="https://hips.hearstapps.com/hmg-prod/images/92d70e6c-b706-4a09-974e-8ef11f…" class="css-0 e1g79fud0"> type:node]]] type:subitems]]]

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.

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:145.523 source:map[type:text value:[unattributed]]]]

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

lhId: page-0-IMG
nodeLabel: Senior woman in hospital bed
path: 1,HTML,1,BODY,1,DIV,10,MAIN,2,SECTION,0,DIV,0,A,0,DIV,0,DIV,0,PICTURE,6,IMG
selector: div.css-79elbk > div.__resp-container > picture.css-0 > img
snippet: <img src="https://hips.hearstapps.com/hmg-prod/images/31542bf2-3a06-4d29-9c28-c4f5d4…" alt="Senior woman in hospital bed" width="7988" height="5328" decoding="async" loading="lazy" sizes="100vw">

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
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

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.

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.

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
Mid Adult Caucasian Woman Shopping for Groceries in a Bright Supermarket Aisle a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/7b0ed91f-9a53-4f14-a7e6-dda02e3d20be.jpe...37.1 KiB32.1 KiB
asian woman in pink sweater sitting on a bench in park and laughing happily div.css-79elbk > div.__resp-container > picture.css-0 > img
/hmg-prod/images/asian-woman-in-pink-sweater-sitting-on-a...57.4 KiB29.1 KiB
Heated blanket with remote control on a blue background with dollar signs. a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img.css-0
/hmg-prod/images/3bb2c9bf-1c27-434c-92c9-0e10626a51f8.png...31.7 KiB28.6 KiB
Pasta salad a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/bec3b11a-2778-4f82-b226-fb9e7769d54d.jpe...27.3 KiB22.4 KiB
Senior woman in hospital bed div.css-79elbk > div.__resp-container > picture.css-0 > img
/hmg-prod/images/31542bf2-3a06-4d29-9c28-c4f5d4d90e10.jpe...43.0 KiB21.8 KiB
Doctor Going Over Test Results With Patient a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img.css-0
/hmg-prod/images/92d70e6c-b706-4a09-974e-8ef11f62276d.jpe...18.6 KiB15.9 KiB
Woman experiencing chest pain having difficulty breathing at home a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img.css-0
/hmg-prod/images/f4d7360f-b72b-4b1e-9f36-8ca7a480dffe.jpe...16.9 KiB14.4 KiB
Senior man sorting prescription medications at kitchen table a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/d4f7cd9e-3195-4a5f-a4d6-5a605bb9bd95.jpe...17.6 KiB13.4 KiB
Nurse checking senior woman's vital signs in her home a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/48e51c24-cac1-4ea0-985a-5db2fb157380.jpe...17.5 KiB13.3 KiB
alo vs lulu jacket a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img.css-0
/hmg-prod/images/34d40f31-22bc-4150-a549-007daf2ba2cc.png...15.4 KiB13.1 KiB
woman working at home office hand on keyboard close up a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img.css-0
/hmg-prod/images/woman-working-at-home-office-hand-on-key...15.1 KiB12.9 KiB
baked sweet potato a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/baked-sweet-potato-royalty-free-image-17...19.6 KiB10.5 KiB
healthy mature woman drinking water in living room. healthy lifestyle and welln… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/healthy-mature-woman-drinking-water-in-l...17.7 KiB9.5 KiB
high protein breakfasts dietitians recommend - Granola with fruit in bowl a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/e44b254c-25d4-4e9c-bbe2-6b58cbe53707.jpe...16.0 KiB8.6 KiB
high temperature a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/56c781f3-1e02-4643-b534-911427951d80.jpe...10.9 KiB8.3 KiB
Woman measuring colagen or protein powder supplement with spoon into glass of w… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/b4e92d34-e511-497b-b1b6-9f05e74ac08d.jpe...10.8 KiB8.2 KiB
Chips a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/5b9f7db6-52a3-4009-b79d-43626bc6372a.jpe...9.6 KiB7.3 KiB
Xanax tablet a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/b298c7bd-c529-460e-af34-602fa4435249.jpe...8.1 KiB6.2 KiB
Woman Holds Pills in Palm of Hand a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/3e93b4e2-d239-4c81-aeb4-f2945722f26c.jpe...10.4 KiB5.6 KiB

These insights are also available in the Chrome DevTools Performance Panel - record a trace to view more detailed information.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 256 ms
URLTime Spent
prevention.com/256 ms
www.prevention.com/0.0 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

ElementLayout shift score
Scientists Discover 1 Simple Habit That Could Half Heart Disease Risk in Some D… body > div#__next > main#main-content
0.077
Doctor-Recommended Home Remedies for UTI Relief div.css-1o1ws1x > div > div.css-hhmn3a > a.ee4ms354
0.025

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

CategoryTime Spent
Script Evaluation1.9 s
Other541 ms
Style & Layout294 ms
Script Parsing & Compilation219 ms
Rendering66 ms
Garbage Collection63 ms
Parse HTML & CSS46 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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failure reasonFailure 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

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.

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
Pasta salad a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/bec3b11a-2778-4f82-b226-fb9e7769d54d.jpe...
Nurse checking senior woman's vital signs in her home a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/48e51c24-cac1-4ea0-985a-5db2fb157380.jpe...
Xanax tablet a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/b298c7bd-c529-460e-af34-602fa4435249.jpe...
Chips a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/5b9f7db6-52a3-4009-b79d-43626bc6372a.jpe...
high temperature a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/56c781f3-1e02-4643-b534-911427951d80.jpe...
Mid Adult Caucasian Woman Shopping for Groceries in a Bright Supermarket Aisle a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/7b0ed91f-9a53-4f14-a7e6-dda02e3d20be.jpe...
Woman measuring colagen or protein powder supplement with spoon into glass of w… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/b4e92d34-e511-497b-b1b6-9f05e74ac08d.jpe...
Senior man sorting prescription medications at kitchen table a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/d4f7cd9e-3195-4a5f-a4d6-5a605bb9bd95.jpe...
Woman Holds Pills in Palm of Hand a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/3e93b4e2-d239-4c81-aeb4-f2945722f26c.jpe...
baked sweet potato a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/baked-sweet-potato-royalty-free-image-17...
high protein breakfasts dietitians recommend - Granola with fruit in bowl a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/e44b254c-25d4-4e9c-bbe2-6b58cbe53707.jpe...
healthy mature woman drinking water in living room. healthy lifestyle and welln… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/healthy-mature-woman-drinking-water-in-l...
Two views of a woman wearing a pink sports bra a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/b747cf03-c870-4045-b181-98f040d1ad01.png...
Adult women exercising together at home a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/37d9a926-3381-4130-a935-6c53667585b5.jpe...
denise austin 2024 espy awards arrivals a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/denise-austin-attends-the-2024-espy-awar...
Footwear display featuring two styles of shoes. a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/49edc063-b402-4e1b-b75b-72271ca2eba6.jpg...
Woman thorough self-care routine includes applying oil to her hair using a drop… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/dd432582-4934-4c47-9742-0ba3680d2aa1.jpe...
Gift guide featuring a baby sleep light and a framed artwork of a mother with h… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/f38bb5fe-ecfb-4292-ba6e-bb0998cba019.png...
2023 ESPYs Awards - Arrivals a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/739cb0c4-d353-421d-a724-c06d6fb128d6.jpe...
common-norovirus-symptoms - Young woman suffering from abdominal pain while sit… a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/1d713eb6-c167-4d56-b79f-d02fab22fe0d.jpe...
Woman discussing mammogram exam with technician. a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/67eac434-de39-48bf-898a-2ce134d33b1b.jpe...
Comparison of two different types of athletic shoes. a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/ecc09783-3285-4943-96af-5315dac7d329.png...
Three pairs of athletic shoes against a turquoise background. a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/afbfd526-8bfc-44e9-ab54-b13f3767c822.jpg...
doctors recommend sore throat remedies a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/ac34e882-4472-4ecd-b5d9-2f3bdd15ad37.jpe...
Happy woman with a glass of infused water sitting on the couch at home a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/ce36754a-031a-4318-bb17-0c95d7be2dae.jpe...
Diverse coworkers enjoy a lunch break at a self-service Asian restaurant a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/d140a81e-953f-4c6e-ac09-976600d0f450.jpe...
walnut nuts on brown wood a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/walnut-nuts-on-brown-wood-royalty-free-i...
mineral sunscreens a.ee4ms354 > div.css-79elbk > div.css-ftsoqv > img
/hmg-prod/images/mineral-sunscreen-2025-6887c8f8b52be.png...
Logo div.css-mt5vg7 > a.css-8aa961 > div.css-zcysxb > img.css-7flfmd
/_assets/design-tokens/prevention/static/images/logos/log...
Logo div.css-1ss7lvu > div.css-iz4391 > a.css-17k8bem > img.css-0
/_assets/design-tokens/prevention/static/images/logos/log...

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

●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Render blocking requests
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Reduce unused CSS
●User Timing marks and measures 40 user timings
●Avoid long main-thread tasks 12 long tasks found
●Avoid non-composited animations 1 animated element found
●Network Requests
●Network Round Trip Times 10 ms
●Server Backend Latencies 100 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 10 ms
○INP breakdown
99

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Want the very best health news and wellness tips all week long? Sign up for the… section > div.css-1wl9jwd > div.css-131rjty > h4.css-os3ib0

These are opportunities to improve keyboard navigation in your application.

○Interactive controls are keyboard focusable
○Interactive elements indicate their purpose and state
○The page has a logical tab order
○Visual order on the page follows DOM order
○User focus is not accidentally trapped in a region
○The user's focus is directed to new content added to the page
○HTML5 landmark elements are used to improve navigation
○Offscreen content is hidden from assistive technology
○Custom controls have associated labels
○Custom controls have ARIA roles
●`[aria-*]` attributes match their roles
●`[aria-hidden="true"]` is not present on the document `<body>`
●`[role]`s have all required `[aria-*]` attributes
●`[role]` values are valid
●`[aria-*]` attributes have valid values
●`[aria-*]` attributes are valid and not misspelled
●Buttons have an accessible name
●Image elements have `[alt]` attributes
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●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.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Uses ARIA roles only on compatible elements
●Identical links have the same purpose.
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
○`[role]`s are contained by their required parent element
○Elements with the `role=text` attribute do not have focusable descendents.
○ARIA toggle fields have accessible names
○ARIA `tooltip` elements have accessible names
○ARIA `treeitem` elements have accessible names
○The page contains a heading, skip link, or landmark region
○`<dl>`'s contain only properly-ordered `<dt>` and `<dd>` groups, `<script>`, `<template>` or `<div>` elements.
○Definition list items are wrapped in `<dl>` elements
○ARIA IDs are unique
○No form fields have multiple labels
○`<frame>` or `<iframe>` elements have a title
○`<html>` element has an `[xml:lang]` attribute with the same base language as the `[lang]` attribute.
○Input buttons have discernible text.
○`<input type="image">` elements have `[alt]` text
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○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.
100

Best Practices

●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
100

SEO

These checks ensure that your page is following basic search engine optimization advice. There are many additional factors Lighthouse does not score here that may affect your search ranking, including performance on Core Web Vitals. Learn more about Google Search Essentials.

○Structured data is valid
●Page isn’t blocked from indexing
●Document has a `<title>` element
●Document has a meta description
●Page has successful HTTP status code
●Links have descriptive text
●Links are crawlable
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

Send Feedback