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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.

26

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.

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.

RequestCache TTLTransfer Size
cdn.quantummetric.com/qscripts/quantum-vistaprint.js300.0 s138.7 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s96.6 KiB
fe-assets.workmagic.io/pixel/latest/wm.min.js1800.0 s83.9 KiB
cdn.attn.tv/tag/4-latest/unified-tag.js?v=4-latest_01f9dc8d10300.0 s49.3 KiB
/signals/config/1050145865347054?v=2.9.303&r=stable&domai...1200.0 s46.3 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
b-code.liadm.com/a-051j.min.js86400.0 s45.9 KiB
/swan/v3/fonts/tiempos-regular2.e4e5aee576677174d2fbcddb1...86400.0 s38.7 KiB
/swan/v3/fonts/graphic_regular2.7c96db81b23a97fd67cbeb7e7...86400.0 s36.1 KiB
/swan/v3/fonts/graphic_medium2.3829398551b96ac319a4812246...86400.0 s34.9 KiB
js.adsrvr.org/up_loader.1.1.0.js0.0 ms12.3 KiB
evs.dcp.vpdcp.com/next-integrations/actions/3962/1faa179dfb20d0a3f5a0.js0.0 ms9.5 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
ct.pinterest.com/static/ct/token_create.js7200.0 s3.9 KiB
cdn.veritonic.com/static/vpr.min.js0.0 ms2.7 KiB
s.pinimg.com/ct/lib/main.10d2511a.js1209600.0 s27.6 KiB
/next-integrations/actions/algolia-plugins/cb031e19c7ec5e...0.0 ms2.5 KiB
tags.creativecdn.com/Sou99GdoKN3iP18UHlb8.js3600.0 s2.7 KiB
cdn.attn.tv/vp/dtag.js120.0 s2.1 KiB
cdn.attn.tv/growth-tag-assets/client-configs/Vkc.js120.0 s2.0 KiB
s.pinimg.com/ct/core.js7200.0 s2.1 KiB
js.adsrvr.org/universal_pixel.js0.0 ms935 B
/collect?v=2&fmt=js&pid=1245164&time=1776799177571&url=ht...0.0 ms912 B
/rp.gif?ts=1776799177563&id=t2_he8iaecu&event=PageVisit&m...0.0 ms666 B
www.vistaprint.com/swan/v3/icons/polish.f96d8f23d25c94848faad3002d02b45e.svg86400.0 s1.6 KiB
/swan/v3/icons/guaranteed_satisfaction.f5e5ab2db7017b2604...86400.0 s1.3 KiB
www.vistaprint.com/swan/v3/icons/phone.e2d8fff5c99f40dc6096bc97d3c2e04b.svg86400.0 s1.2 KiB
js.adsrvr.org/universal_pixel.js0.0 ms442 B
www.vistaprint.com/swan/v3/icons/live_chat.0c91b22f94451864870cbcfb132e04d6.svg86400.0 s976 B
/swan/v3/icons/browse_designs.b4620fac13a93ee4c9d6e812951...86400.0 s933 B
d7pet6vgg99z9.cloudfront.net/JS-build/en-us/ca-controller-production-en-us.js0.0 ms354 B
/swan/v3/icons/work_with_a_pro.54f00512b71a6a5080a43705e0...86400.0 s864 B
www.vistaprint.com/swan/v3/icons/search.0ed88af2d9772071041f88a0eb491cc0.svg86400.0 s781 B
/swan/v3/icons/arrow_right.7e7f4793540a01cdedae0eb039b23b...86400.0 s767 B
www.vistaprint.com/swan/v3/icons/check.f40333dc3e38ee20800b3d79994563c7.svg86400.0 s719 B
/swan/v3/styles/field-set.d41d8cd98f00b204e9800998ecf8427...86400.0 s581 B
/swan/v3/styles/pricing.d41d8cd98f00b204e9800998ecf8427e....86400.0 s457 B
/swan/v3/styles/button.d41d8cd98f00b204e9800998ecf8427e.m...86400.0 s427 B
www.vistaprint.com/swan/v3/styles/icon.d41d8cd98f00b204e9800998ecf8427e.min.css86400.0 s256 B
/tr/?id=1050145865347054&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms19 B

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.

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:352.646 label:Time to first byte subpart:timeToFirstByte] map[duration:45.941 label:Resource load delay subpart:resourceLoadDelay] map[duration:79.939 label:Resource load duration subpart:resourceLoadDuration] map[duration:2052.283 label:Element render delay subpart:elementRenderDelay]]
lhId: page-0-IMG
nodeLabel: A smiling woman in branded Gym Sisters workout gear, alongside the Gym Sisters …
path: 1,HTML,1,BODY,1,MAIN,0,DIV,7,DIV,2,DIV,0,DIV,0,DIV,0,IMG
selector: div.swan-banner > div.swan-banner-image-container > div.swan-banner-image > img.swan-fluid-image
snippet: <img alt="A smiling woman in branded Gym Sisters workout gear, alongside the Gym Sis…" srcset="https://cms.cloudinary.vpsvc.com/image/upload/w_320/f_avif/q_auto/v1741353…" src="https://cms.cloudinary.vpsvc.com/image/upload/w_768/f_avif/q_auto/v1741353…" sizes="(max-width: 768px) 100vw, (max-width: 2840px) 50vw, …" loading="eager" fetchpriority="high" class="swan-fluid-image">

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
/swan/v3/styles/button.d41d8cd98f00b204e9800998ecf8427e.m...427 B514 ms
www.vistaprint.com/swan/v3/styles/icon.d41d8cd98f00b204e9800998ecf8427e.min.css256 B
/swan/v3/styles/pricing.d41d8cd98f00b204e9800998ecf8427e....457 B
/swan/v3/styles/field-set.d41d8cd98f00b204e9800998ecf8427...581 B

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
Get found on Yelp promo background image div.swan-banner > div.swan-banner-image-container > div.swan-banner-image > img.swan-fluid-image
/image/upload/f_auto/q_auto/v1756719037/digital/partners/...242.1 KiB234.1 KiB
Vista x Wix Domain name div.swan-visible-xs > div.swan-banner-image-container > div.swan-banner-image > img.swan-fluid-image
/image/upload/w_768/f_avif/q_auto/v1670452392/digital/par...71.9 KiB56.6 KiB
A smiling woman in branded Gym Sisters workout gear, alongside the Gym Sisters … div.swan-banner > div.swan-banner-image-container > div.swan-banner-image > img.swan-fluid-image
/image/upload/w_768/f_avif/q_auto/v1741353552/digital/par...37.5 KiB30.4 KiB
Woman in branded Pom Pom t-shirt, with pink and yellow website, mobile, and soc… div.swan-grid-container > div.swan-row > div.swan-col-12 > img.swan-fluid-image
/image/upload/w_768/f_avif/q_auto/v1739267791/digital/par...37.9 KiB28.6 KiB

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

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

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: 804 ms
URLTime Spent
webs.com/804 ms
www.vistaprint.com/digital-marketing/webs-shutdown0.0 ms

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

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.

Estimated savings: 6.7 s 1.2 MiB
URLTransfer SizeEst Savings
/assets/ubik/web/@vp/chatbot-ui/1.0.66/lib/web/systemjs/c...183.0 KiB119.9 KiB
/assets/ubik/web/@vp/swan/3.34.0/systemjs/web/systemjs/sw...166.7 KiB101.9 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js109.2 KiB84.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-PKH9B2B&gtm=4e64k0h2149.6 KiB79.2 KiB
www.googletagmanager.com/gtag/js?id=G-3TW2S49QDP&cx=c&gtm=4e64k0h2169.2 KiB64.4 KiB
www.googletagmanager.com/gtag/js?id=DC-9815365&cx=c&gtm=4e64k0h2129.9 KiB60.4 KiB
www.googletagmanager.com/gtag/js?id=DC-14876881&cx=c&gtm=4e64k0h2129.7 KiB60.2 KiB
www.googletagmanager.com/gtag/js?id=AW-620967259&cx=c&gtm=4e64k0h2144.0 KiB56.6 KiB
www.googletagmanager.com/gtm.js?id=GTM-MQMB4G9R&gtm=4e64k0h2142.2 KiB56.2 KiB
www.googletagmanager.com/gtag/js?id=AW-618990810&cx=c&gtm=4e64k0h2144.0 KiB55.7 KiB
www.googletagmanager.com/gtag/js?id=AW-867422543&cx=c&gtm=4e64k0h2137.7 KiB54.5 KiB
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js105.2 KiB54.2 KiB
www.googletagmanager.com/gtm.js?id=GTM-TX2GVCC&l=dataLayer185.6 KiB52.7 KiB
/assets/ubik/web/@vp/react-bookends/10.46.7/lib/web/syste...102.0 KiB49.5 KiB
/assets/ubik/web/@vp/tracking/11.14.2173/systemjs/web/tra...100.5 KiB48.2 KiB
/assets/ubik/web/@vp/auth/7.0.16/lib/web/systemjs/auth-CB...53.9 KiB42.1 KiB
/assets/ubik/web/@vp/fragment-wix-websites-fragments/1.5....48.6 KiB35.7 KiB
/assets/ubik/web/@vp/fragment-wix-websites-fragments/1.5....50.1 KiB34.6 KiB
connect.facebook.net/en_US/fbevents.js96.5 KiB32.8 KiB
cdn.attn.tv/tag/4-latest/unified-tag.js?v=4-latest_01f9dc8d1048.8 KiB30.0 KiB
cdn.quantummetric.com/qscripts/quantum-vistaprint.js138.1 KiB29.1 KiB
/assets/ubik/web/@vp/ubik-react/19.2.3/dist/web/react-dom...54.2 KiB20.3 KiB

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
/assets/ubik/web/@vp/ubik-react/19.2.3/dist/web/react-dom...1.6 s1.5 s1.0 ms
Unattributable1.3 s284 ms0.0 ms
www.vistaprint.com/digital-marketing/webs-shutdown1.3 s849 ms38 ms
cdn.quantummetric.com/qscripts/quantum-vistaprint.js591 ms509 ms50 ms
www.googletagmanager.com/gtm.js?id=GTM-PKH9B2B&gtm=4e64k0h2528 ms477 ms39 ms
www.googletagmanager.com/gtm.js?id=GTM-TX2GVCC&l=dataLayer446 ms347 ms56 ms
www.googletagmanager.com/gtm.js?id=GTM-MQMB4G9R&gtm=4e64k0h2401 ms327 ms41 ms
www.googletagmanager.com/gtag/js?id=G-3TW2S49QDP&cx=c&gtm=4e64k0h2370 ms326 ms40 ms
www.googletagmanager.com/gtag/js?id=AW-620967259&cx=c&gtm=4e64k0h2295 ms226 ms33 ms
www.googletagmanager.com/gtag/js?id=AW-618990810&cx=c&gtm=4e64k0h2281 ms240 ms38 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMA.js257 ms216 ms40 ms
www.googletagmanager.com/gtag/js?id=AW-867422543&cx=c&gtm=4e64k0h2256 ms219 ms33 ms
cdn.attn.tv/tag/4-latest/unified-tag.js?v=4-latest_01f9dc8d10228 ms201 ms15 ms
www.googletagmanager.com/gtag/js?id=DC-14876881&cx=c&gtm=4e64k0h2195 ms158 ms36 ms
www.googletagmanager.com/gtag/js?id=DC-9815365&cx=c&gtm=4e64k0h2162 ms134 ms26 ms
js-agent.newrelic.com/nr-spa-1.277.0.min.js138 ms119 ms8.7 ms
/signals/config/1050145865347054?v=2.9.303&r=stable&domai...131 ms114 ms17 ms
/assets/ubik/web/@vp/ubik-react/19.2.3/dist/web/react-dom...126 ms105 ms18 ms
connect.facebook.net/en_US/fbevents.js125 ms95 ms29 ms
b-code.liadm.com/a-051j.min.js124 ms107 ms13 ms
fe-assets.workmagic.io/pixel/latest/wm.min.js108 ms85 ms22 ms
/assets/ubik/web/@vp/auth-react/7.0.16/lib/web/systemjs/a...108 ms107 ms0.3 ms
/assets/ubik/web/@vp/fragment-wix-websites-fragments/1.5....103 ms102 ms0.2 ms
/assets/ubik/web/@vp/newrelic-browser-micro-agent/1.0.5/d...102 ms86 ms2.2 ms
analytics.tiktok.com/i18n/pixel/static/main.MWE0ZWQ3ZWQwMQ.js93 ms53 ms40 ms
/assets/ubik/web/@vp/auth/7.0.16/lib/web/systemjs/auth-CB...88 ms67 ms13 ms
s.pinimg.com/ct/lib/main.10d2511a.js83 ms56 ms8.9 ms
/assets/ubik/web/@vp/swan/3.34.0/systemjs/web/systemjs/sw...80 ms14 ms46 ms
/assets/ubik/web/@vp/ubik-logging/2.2.13/lib/web/systemjs...72 ms71 ms0.9 ms
snap.licdn.com/li.lms-analytics/insight.min.js65 ms54 ms5.0 ms
/assets/ubik/web/@vp/chatbot-ui/1.0.66/lib/web/systemjs/c...60 ms9.3 ms50 ms
analytics.tiktok.com/i18n/pixel/static/identify_5cff1caf.js56 ms43 ms13 ms
evs.dcp.vpdcp.com/next-integrations/actions/3962/1faa179dfb20d0a3f5a0.js54 ms48 ms3.9 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 Evaluation8.0 s
Other1.2 s
Script Parsing & Compilation949 ms
Parse HTML & CSS219 ms
Garbage Collection189 ms
Style & Layout188 ms
Rendering20 ms

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.

Estimated savings: 0.0 ms 13.5 KiB
URLTransfer SizeEst Savings
/*https://www.vistaprint.com/swan/v3/styles/utility.bd5eb5f5b9f2f431bd5920e8fc1675db.min.css*/ @key…14.2 KiB13.5 KiB

Large network payloads cost users real money and are highly correlated with long load times. Learn how to reduce payload sizes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer Size
/image/upload/f_auto/q_auto/v1756719037/digital/partners/...242.9 KiB
www.googletagmanager.com/gtm.js?id=GTM-TX2GVCC&l=dataLayer185.9 KiB
/assets/ubik/web/@vp/chatbot-ui/1.0.66/lib/web/systemjs/c...183.2 KiB
www.googletagmanager.com/gtag/js?id=G-3TW2S49QDP&cx=c&gtm=4e64k0h2169.2 KiB
/assets/ubik/web/@vp/swan/3.34.0/systemjs/web/systemjs/sw...166.7 KiB
www.googletagmanager.com/gtm.js?id=GTM-PKH9B2B&gtm=4e64k0h2149.6 KiB
www.googletagmanager.com/gtag/js?id=AW-618990810&cx=c&gtm=4e64k0h2144.0 KiB
www.googletagmanager.com/gtag/js?id=AW-620967259&cx=c&gtm=4e64k0h2144.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-MQMB4G9R&gtm=4e64k0h2142.2 KiB
cdn.quantummetric.com/qscripts/quantum-vistaprint.js138.7 KiB

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
Wix Vista Wix Black Logo div.swan-banner-text-container > div.swan-banner-text > div.swan-banner-eyebrow > img.swan-fluid-image
/image/upload/w_320/f_avif/q_auto/v1732610556/digital/par...

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

●Layout shift culprits
●Optimize DOM size
●Font display
●Forced reflow
●LCP request discovery
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●User Timing marks and measures 48 user timings
●Avoid long main-thread tasks 20 long tasks found
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 170 ms
●Server Backend Latencies 320 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 240 ms
○INP breakdown
○Avoid non-composited animations
○Avoid large layout shifts
97

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.

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.swan-bounded-content > div.site-header-main > nav.site-header-links > a.site-header-link div.swan-bounded-content > div.site-header-main > nav.site-header-links > a.site-header-link

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.

○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]` 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
●`[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
●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.
●Heading elements appear in a sequentially-descending order
●Document has a main landmark.
●Deprecated ARIA roles were not used
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○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
○`[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
○Links are distinguishable without relying on color.
○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.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○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.
58

Best Practices

Trust and Safety

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Insecure URLRequest Resolution
node:diagnostics_channelAllowed

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
snap.licdn.com/li.lms-analytics/insight.min.js

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

SourceDescription
www.vistaprint.com/digital-marketing/webs-shutdown
Access to script at 'node:diagnostics_channel' from origin 'https://www.vistaprint.com' has been blocked by CORS policy: Cross origin requests are only supported for protocol schemes: chrome, chrome-extension, chrome-untrusted, data, http, https, isolated-app.
node:diagnostics_channel
Failed to load resource: net::ERR_FAILED
●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 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
92

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.

Crawling and Indexing

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Uncrawlable Link
connect a domain you already own. div.swan-banner-text-container > div.swan-banner-text > p.swan-banner-footnote > a.swan-link
Claim your free Yelp page div.swan-banner-text-container > div.swan-banner-text > div.swan-banner-links > a.swan-link

To appear in search results, crawlers need access to your app.

○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
●robots.txt is valid
●Image elements have `[alt]` attributes
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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