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Lighthouse Mobile

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

Audit breakdown by category with detailed findings.

22

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:0.107957] map[node:map[boundingRect:map[bottom:823 height:304 left:146 right:412 top:519 width:266] lhId:page-5-IFRAME nodeLabel:body.home > div#hubspot-messages-iframe-container > iframe#hubspot-conversations-iframe path:1,HTML,1,BODY,66,DIV,1,IFRAME selector:body.home > div#hubspot-messages-iframe-container > iframe#hubspot-conversations-iframe snippet:<iframe src="https://app.hubspot.com/conversations-visitor/20263761/threads/utk/95f8cc9…" id="hubspot-conversations-iframe" allowfullscreen="" data-test-id="chat-widget-iframe"> type:node] score:0.060273] map[node:map[boundingRect:map[bottom:740 height:703 left:0 right:412 top:37 width:412] lhId:page-4-VIDEO nodeLabel:div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted path:1,HTML,1,BODY,4,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO selector:div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted snippet:<video class="elementor-background-video-hosted" role="presentation" autoplay="" muted="" playsinline="" loop="" src="https://ogm.uk.com/wp-content/uploads/2024/11/new-header-1.mp4" style="width: 1249.78px; height: 703px;"> type:node] score:0.028312] map[node:map[boundingRect:map[bottom:740 height:703 left:0 right:412 top:37 width:412] lhId:page-4-VIDEO nodeLabel:div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted path:1,HTML,1,BODY,4,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO selector:div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted snippet:<video class="elementor-background-video-hosted" role="presentation" autoplay="" muted="" playsinline="" loop="" src="https://ogm.uk.com/wp-content/uploads/2024/11/new-header-1.mp4" style="width: 1249.78px; height: 703px;"> type:node] score:0.019372]]

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:Top function call valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:38.961 source:map[column:68089 line:13 type:source-location url:https://ogm.uk.com/wp-content/plugins/elementor/assets/lib/swiper/v8/swiper.min.js?ver=8.4.5 urlProvider:network]]]
headings: [map[key:source label:Source valueType:source-location] map[granularity:1 key:reflowTime label:Total reflow time valueType:ms]]
items: [map[reflowTime:49.827 source:map[column:15980 line:102 type:source-location url:https://ogm.uk.com/wp-content/plugins/revslider/public/assets/js/jquery.themepunch.tools.min.js?ver=5.4.6.2 urlProvider:network]] map[reflowTime:0.622 source:map[column:16066 line:102 type:source-location url:https://ogm.uk.com/wp-content/plugins/revslider/public/assets/js/jquery.themepunch.tools.min.js?ver=5.4.6.2 urlProvider:network]] map[reflowTime:198.263 source:map[column:9022 line:0 type:source-location url:https://ogm.uk.com/wp-content/themes/astra/assets/js/minified/frontend.min.js?ver=4.13.1 urlProvider:network]] map[reflowTime:2.876 source:map[column:509 line:0 type:source-location url:https://ogm.uk.com/wp-content/themes/astra/assets/js/minified/frontend.min.js?ver=4.13.1 urlProvider:network]] map[reflowTime:2.075 source:map[column:7143 line:1 type:source-location url:https://ogm.uk.com/wp-content/plugins/elementor/assets/lib/e-gallery/js/e-gallery.min.js?ver=1.2.0 urlProvider:network]] map[reflowTime:25.168 source:map[type:text value:[unattributed]]] map[reflowTime:49.254 source:map[column:45921 line:12 type:source-location url:https://ogm.uk.com/wp-content/plugins/elementor/assets/lib/swiper/v8/swiper.min.js?ver=8.4.5 urlProvider:network]] map[reflowTime:1.847 source:map[column:76190 line:3 type:source-location url:https://script.hotjar.com/modules.6a0f3932cb1341a35c18.js urlProvider:network]] map[reflowTime:0.91 source:map[column:486 line:586 type:source-location url:https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js urlProvider:network]] map[reflowTime:4.411 source:map[column:444 line:348 type:source-location url:https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js urlProvider:network]] map[reflowTime:0.474 source:map[column:490 line:247 type:source-location url:https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js urlProvider:network]] map[reflowTime:8.074 source:map[column:306 line:298 type:source-location url:https://www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js urlProvider:network]] map[reflowTime:0.381 source:map[column:19178 line:0 type:source-location url:https://js.usemessages.com/conversations-embed.js urlProvider:network]] map[reflowTime:0.893 source:map[column:17869 line:18 type:source-location url:https://js.hs-analytics.net/analytics/1778420700000/20263761.js urlProvider:network]]]

Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLResource SizeEst Savings
div.elementor-element > div.elementor-widget-container > a > img.attachment-large div.elementor-element > div.elementor-widget-container > a > img.attachment-large
ogm.uk.com/wp-content/uploads/2026/02/VerifiedStamp.png93.7 KiB89.4 KiB
div.elementor-element > div.elementor-widget-container > a > img.attachment-large div.elementor-element > div.elementor-widget-container > a > img.attachment-large
ogm.uk.com/wp-content/uploads/2021/07/OGM-Reshoring-Logo-01.png72.7 KiB67.1 KiB
british plastics federation div.elementor-element > div.elementor-widget-container > a > img.attachment-large
ogm.uk.com/wp-content/uploads/2023/01/transp-Member-of-the-BPF-768x269.png32.5 KiB26.7 KiB
Cyber essentials div.elementor-element > div.elementor-widget-container > a > img.attachment-large
ogm.uk.com/wp-content/uploads/2023/11/Cyber-essentials.png7.5 KiB6.6 KiB

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

headings: [map[key:label label:Subpart valueType:text] map[key:duration label:Duration valueType:ms]]
items: [map[duration:252.653 label:Time to first byte subpart:timeToFirstByte] map[duration:1656.856 label:Resource load delay subpart:resourceLoadDelay] map[duration:0 label:Resource load duration subpart:resourceLoadDuration] map[duration:610.199 label:Element render delay subpart:elementRenderDelay]]
lhId: page-4-VIDEO
nodeLabel: div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted
path: 1,HTML,1,BODY,4,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO
selector: div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted
snippet: <video class="elementor-background-video-hosted" role="presentation" autoplay="" muted="" playsinline="" loop="" src="https://ogm.uk.com/wp-content/uploads/2024/11/new-header-1.mp4" style="width: 1249.78px; height: 703px;">

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-4-VIDEO
nodeLabel: div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted
path: 1,HTML,1,BODY,4,DIV,1,DIV,0,DIV,0,DIV,0,DIV,0,DIV,0,VIDEO
selector: div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted
snippet: <video class="elementor-background-video-hosted" role="presentation" autoplay="" muted="" playsinline="" loop="" src="https://ogm.uk.com/wp-content/uploads/2024/11/new-header-1.mp4" style="width: 1249.78px; height: 703px;">

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

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
/wp-content/plugins/revslider/public/assets/js/jquery.the...37.7 KiB328 ms
ogm.uk.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.129.9 KiB164 ms
ogm.uk.com/wp-content/plugins/cf7-gated-content/js/cf7_gated_content.js?ver=11.2 KiB
/wp-content/plugins/revslider/public/assets/js/jquery.the...17.8 KiB
/wp-content/plugins/ultimate-elementor/assets/min-css/uae...81.2 KiB1.1 s
ogm.uk.com/wp-includes/js/jquery/jquery-migrate.min.js?ver=3.4.15.0 KiB
/wp-content/plugins/elementor/assets/lib/font-awesome/css...12.6 KiB164 ms
/wp-content/uploads/elementor/google-fonts/css/manrope.cs...1020 B
/wp-content/uploads/elementor/google-fonts/css/roboto.css...3.0 KiB
/wp-content/plugins/elementor-pro/assets/css/modules/stic...352 B
/wp-content/plugins/elementor-pro/assets/css/widget-nav-m...3.6 KiB
ogm.uk.com/wp-content/uploads/elementor/css/post-10404.css?ver=1778085810571 B164 ms
/wp-content/plugins/elementor/assets/lib/eicons/css/eleme...4.6 KiB
ogm.uk.com/wp-content/uploads/elementor/css/post-10333.css?ver=17780858101.1 KiB
ogm.uk.com/wp-content/uploads/elementor/css/post-8066.css?ver=17780858102.4 KiB
/wp-content/plugins/elementor/assets/css/widget-contact-b...3.0 KiB
/wp-content/plugins/elementor/assets/lib/animations/style...359 B
/wp-content/uploads/elementor/google-fonts/css/robotoslab...1.1 KiB
/wp-content/plugins/elementor/assets/lib/animations/style...355 B
/wp-content/plugins/elementor/assets/lib/font-awesome/css...13.1 KiB164 ms
/wp-content/plugins/elementor/assets/lib/animations/style...358 B
/wp-content/uploads/elementor/google-fonts/css/outfit.css...725 B
/wp-content/plugins/elementor/assets/lib/animations/style...341 B
/wp-content/plugins/elementor/assets/css/widget-icon-box....671 B
/wp-content/plugins/elementor-pro/assets/css/conditionals...857 B
/wp-content/plugins/elementor-pro/assets/css/widget-galle...1.3 KiB164 ms
/wp-content/plugins/elementor-pro/assets/css/widget-slide...859 B
/wp-content/plugins/elementor/assets/lib/animations/style...359 B
/wp-content/plugins/elementor-pro/assets/css/modules/moti...546 B
/wp-content/plugins/elementor/assets/lib/animations/style...314 B
/wp-content/plugins/elementor/assets/lib/swiper/v8/css/sw...4.7 KiB
/wp-content/plugins/elementor/assets/lib/animations/style...353 B
/wp-content/plugins/elementor/assets/lib/font-awesome/css...561 B
/wp-content/plugins/elementor/assets/css/widget-contact-b...1.2 KiB
/wp-content/plugins/elementor/assets/lib/font-awesome/css...544 B
/wp-content/plugins/elementor-pro/assets/css/conditionals...656 B
/wp-content/plugins/elementor/assets/lib/e-gallery/css/e-...1.1 KiB
ogm.uk.com/wp-content/uploads/elementor/css/post-8047.css?ver=17780858102.7 KiB
ogm.uk.com/wp-content/uploads/elementor/css/post-2754.css?ver=1778085809636 B164 ms
ogm.uk.com/wp-content/uploads/elementor/css/post-8034.css?ver=17780858104.3 KiB
/wp-content/uploads/elementor/google-fonts/css/plusjakart...1.1 KiB
/wp-content/plugins/elementor/assets/lib/font-awesome/css...545 B164 ms
/wp-content/plugins/elementor/assets/css/widget-heading.m...396 B
/wp-content/plugins/elementor/assets/lib/font-awesome/css...544 B
/wp-content/plugins/elementor/assets/css/conditionals/e-s...1.0 KiB
ogm.uk.com/wp-content/themes/astra/assets/css/minified/main.min.css?ver=4.13.18.7 KiB
/wp-content/plugins/elementor/assets/css/widget-social-ic...1.3 KiB
/wp-content/uploads/astra-addon/astra-addon-69f0db3aa8c26...7.2 KiB
ogm.uk.com/wp-content/plugins/elementor/assets/css/frontend.min.css?ver=4.0.47.3 KiB164 ms
/wp-content/plugins/wpcf7-redirect/build/assets/frontend-...330 B
/wp-content/plugins/elementor/assets/css/conditionals/app...783 B
/wp-content/plugins/elementor/assets/css/widget-icon-list...1.2 KiB164 ms
/wp-content/plugins/elementor/assets/lib/animations/style...354 B
/wp-content/plugins/elementor/assets/css/widget-social-ic...1.3 KiB
ogm.uk.com/wp-content/plugins/contact-form-7/includes/css/styles.css?ver=6.1.51.2 KiB
/wp-content/plugins/elementor/assets/css/widget-image.min...371 B
/wp-content/plugins/elementor/assets/lib/font-awesome/css...558 B
/wp-content/plugins/revslider/public/assets/css/settings....7.2 KiB
/css?family=Open+Sans%3A400%2C600%2C700%2C800&display=swa...2.3 KiB793 ms
/css?family=Poppins:100,100italic,200,200italic,300,300it...1.0 KiB154 ms

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

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.

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
body.home > div#hubspot-messages-iframe-container > iframe#hubspot-conversations-iframe body.home > div#hubspot-messages-iframe-container > iframe#hubspot-conversations-iframe
0.060
div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted
0.028
div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted div.elementor > div.elementor-element > div.elementor-background-video-container > video.elementor-background-video-hosted
0.019

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

Reduce unused rules from stylesheets and defer CSS not used for above-the-fold content to decrease bytes consumed by network activity. Learn how to reduce unused CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTotal CPU TimeScript EvaluationScript Parse
www.gstatic.com/recaptcha/releases/U5VsmTDhJM1iOJUyw4DEUTYv/recaptcha__en.js4.5 s3.9 s199 ms
js.hs-analytics.net/analytics/1778420700000/20263761.js2.1 s1.4 s19 ms
Unattributable1.9 s68 ms0.0 ms
script.hotjar.com/modules.6a0f3932cb1341a35c18.js1.7 s1.5 s56 ms
ogm.uk.com/1.2 s88 ms45 ms
ogm.uk.com/wp-includes/js/jquery/jquery.min.js?ver=3.7.1917 ms813 ms16 ms
ogm.uk.com/wp-content/themes/astra/assets/js/minified/frontend.min.js?ver=4.13.1886 ms41 ms5.7 ms
/wp-content/plugins/elementor/assets/lib/swiper/v8/swiper...598 ms205 ms31 ms
www.googletagmanager.com/gtag/js?id=GT-MBL4T29554 ms392 ms92 ms
js.usemessages.com/conversations-embed.js440 ms306 ms22 ms
js.hsforms.net/forms/embed/v2.js?ver=11.3.45345 ms227 ms109 ms
/wp-content/plugins/revslider/public/assets/js/jquery.the...342 ms93 ms18 ms
/wp-content/plugins/elementor-pro/assets/js/slides.c00296...246 ms191 ms1.2 ms
/wp-content/plugins/astra-pro-sites/inc/lib/onboarding/as...236 ms174 ms3.3 ms
js.hscollectedforms.net/collectedforms.js236 ms186 ms13 ms
cdn.leadinfo.net/ping.js181 ms104 ms12 ms
/wp-content/uploads/astra-addon/astra-addon-69f0db3aaa13a...157 ms40 ms11 ms
/wp-content/plugins/elementor/assets/js/frontend-modules....142 ms125 ms12 ms
/wp-content/plugins/elementor-pro/assets/js/nav-menu.8521...118 ms90 ms1.4 ms
snap.licdn.com/li.lms-analytics/insight.min.js112 ms94 ms11 ms
/wp-content/plugins/ultimate-elementor/assets/min-css/uae...108 ms0.0 ms0.0 ms
/wp-content/plugins/elementor-pro/assets/js/gallery.06be1...92 ms75 ms1.6 ms
js.hs-banner.com/20263761.js88 ms57 ms17 ms
ogm.uk.com/wp-content/plugins/elementor/assets/js/frontend.min.js?ver=4.0.479 ms72 ms5.6 ms
/wp-content/plugins/elementor/assets/js/shared-frontend-h...54 ms50 ms1.8 ms

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 Evaluation10.9 s
Other3.1 s
Style & Layout2.6 s
Script Parsing & Compilation821 ms
Parse HTML & CSS503 ms
Garbage Collection341 ms
Rendering116 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 WebSocket cannot enter back/forward cache.Pending browser support

Minifying CSS files can reduce network payload sizes. Learn how to minify CSS.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 8.6 KiB

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

Document request latency
Optimize DOM size
Modern HTTP
Optimize viewport for mobile
Minify JavaScript
User Timing marks and measures 6 user timings
Avoid long main-thread tasks 20 long tasks found
Image elements have explicit `width` and `height`
Network Requests
Network Round Trip Times 30 ms
Server Backend Latencies 320 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Avoid multiple page redirects
Initial server response time was short Root document took 200 ms
INP breakdown
Avoid non-composited animations
91

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.

Contrast

Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Privacy Policy div#hs-eu-cookie-confirmation-inner > div#hs-eu-policy-wording > p > a
© 2026 All Rights Reserved. div.e-con-inner > div.elementor-element > div.elementor-widget-container > p.elementor-heading-title

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Policies div.elementor-element > div.elementor-element > div.elementor-widget-container > h6.elementor-heading-title

These are opportunities to improve keyboard navigation in your application.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.e-con-inner > div.elementor-element > div.elementor-widget-container > a div.e-con-inner > div.elementor-element > div.elementor-widget-container > a
div.elementor-element > div.elementor-element > div.elementor-widget-container > a div.elementor-element > div.elementor-element > div.elementor-widget-container > a
div.e-con-inner > div.elementor-element > div.elementor-widget-container > a div.e-con-inner > div.elementor-element > div.elementor-widget-container > a
div.elementor-element > div.elementor-element > div.elementor-widget-container > a div.elementor-element > div.elementor-element > div.elementor-widget-container > 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
html.hs-messages-mobile html.hs-messages-mobile

These items highlight common accessibility best practices.

Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
Elements with an ARIA `[role]` that require children to contain a specific `[role]` have all required children.
`[role]`s are contained by their required parent element
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Image elements have `[alt]` attributes
`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
`button`, `link`, and `menuitem` elements have accessible names
ARIA attributes are used as specified for the element's role
`[aria-hidden="true"]` elements do not contain focusable descendents
Elements use only permitted ARIA attributes
Document has a `<title>` element
`<frame>` or `<iframe>` elements have a title
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
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.
Deprecated ARIA roles were not used
`<video>` elements contain a `<track>` element with `[kind="captions"]`
Uses ARIA roles only on compatible elements
Identical links have the same purpose.
`[accesskey]` values are unique
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
ARIA input fields have accessible names
ARIA `meter` elements have accessible names
ARIA `progressbar` elements have accessible names
Elements with the `role=text` attribute do not have focusable descendents.
ARIA toggle fields have accessible names
ARIA `tooltip` elements have accessible names
ARIA `treeitem` elements have accessible names
Buttons have an accessible name
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
`<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
Form elements have associated labels
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
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.
Elements with visible text labels have matching accessible names.
Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
`<td>` elements in a large `<table>` have one or more table headers.
81

Best Practices

General

Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

SEO

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

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

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