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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.

7

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
assets.qualified.com/static-media/piperx-loading/Ruby.mp40.0 ms2.6 MiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s868.1 KiB
js.qualified.com/qualified.js?token=zCnvhQFqeieM7u1560.0 s369.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s389.6 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...7200.0 s300.0 KiB
assets.qualified.com/packs/media/Inter-roman.var.b2129c00.woff20.0 ms222.3 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s223.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s232.8 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s213.8 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s198.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s207.7 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s176.1 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s176.0 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s164.4 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s151.0 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s148.4 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s138.8 KiB
assets.qualified.com/packs/media/Inter-SemiBold.fcb100c7.woff20.0 ms104.0 KiB
assets.qualified.com/packs/media/Inter-Regular.f1f0c35b.woff20.0 ms96.9 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s121.1 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s126.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s126.1 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...7200.0 s124.6 KiB
connect.facebook.net/en_US/fbevents.js1200.0 s95.0 KiB
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...7200.0 s99.6 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s89.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s93.1 KiB
assets.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js3600.0 s75.5 KiB
/content/dam/twilio-com/global/en/homepage/personalizatio...3600.0 s74.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s73.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s73.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s72.7 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s72.6 KiB
/content/dam/twilio-com/global/en/products/cpaas/gartner-...3600.0 s65.5 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s63.3 KiB
www.datadoghq-browser-agent.com/us1/v6/datadog-rum.js14400.0 s58.3 KiB
/signals/config/1040773425961662?v=2.9.291&r=stable&domai...1200.0 s38.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s39.8 KiB
/analytics.js/v1/NBBzVMlQO9GFFqU6upGyk4gqf6zV28TH/analyti...120.0 s28.8 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s34.0 KiB
euob.powerrobotflower.com/sxp/i/40532d5df9f288cf593998bcff0654c9.js43200.0 s44.5 KiB
www.redditstatic.com/ads/pixel.js60.0 s19.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s22.8 KiB
analytics.silktide.com/300433ab0ed34c0bb2bb1cd50cb4f829.js0.0 ms16.5 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s20.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s20.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s17.2 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s13.5 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js600.0 s11.8 KiB
scripts.clarity.ms/0.8.59/clarity.js86400.0 s26.2 KiB
tags.srv.stackadapt.com/events.js5.0 s8.1 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s10.6 KiB
cdn.siftscience.com/s.js86400.0 s19.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s10.4 KiB
/notice?domain=twilio.com&c=teconsent&gtm=1&js=nj&noticeT...3600.0 s9.7 KiB
snap.licdn.com/li.lms-analytics/insight.min.js86400.0 s18.7 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s9.2 KiB
/etc.clientlibs/clientlibs/granite/utils.lc-e7bf340a353e6...7200.0 s8.9 KiB
js.zi-scripts.com/zi-tag.js0.0 ms5.7 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s7.1 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s6.7 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s6.4 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s5.8 KiB
/beacon.min.js/v8c78df7c7c0f484497ecbca7046644da177152312...86400.0 s10.7 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s4.8 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...3600.0 s4.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s3.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s2.7 KiB
scout-cdn.salesloft.com/sl.js14400.0 s2.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s2.1 KiB
jscloud.net/x/13724/inlinks.js14400.0 s2.2 KiB
munchkin.marketo.net/munchkin.js0.0 ms1.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s1.2 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/micro.js3600.0 s1.1 KiB
/a62564f453ce/b1b9d7ec982b/b31050163b61/RCfe5fa4ba4d174dd...3600.0 s832 B
/rp.gif?ts=1775591829755&id=t2_i1au5p4&event=PageVisit&m....0.0 ms637 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s801 B
/collect?v=2&fmt=js&pid=19502%2C6807113&time=177559182933...0.0 ms452 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s520 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...7200.0 s519 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...7200.0 s509 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s507 B
/collect?v=2&fmt=js&pid=19502%2C6807113&time=177559183065...0.0 ms41 B
/tr/?id=1040773425961662&ev=PageView&dl=https%3A%2F%2Fwww...0.0 ms19 B
/tr/?id=1040773425961662&ev=CHEQ&dl=https%3A%2F%2Fwww.twi...0.0 ms16 B

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:0.371838] map[node:map[boundingRect:map[bottom:823 height:491 left:56 right:412 top:332 width:356] lhId:page-3-IFRAME nodeLabel:iframe#q-messenger-frame path:1,HTML,2,IFRAME selector:iframe#q-messenger-frame snippet:<iframe name="" class="qlfd-is-mobile" id="q-messenger-frame" data-mirrored="true" allow="camera;microphone" style="height: 491px !important; width: 356px !important;" src="https://app.qualified.com/w/1/zCnvhQFqeieM7u15/messenger?uuid=d46f759b-97d…"> type:node] score:0.166616 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3502 height:200 left:66 right:346 top:3302 width:280] lhId:page-9-IMG nodeLabel:div.layout-column > figure.media > div.media-image--mobile > img path:1,HTML,1,BODY,7,MAIN,5,DIV,0,DIV,0,DIV,2,A,0,DIV,0,DIV,2,FIGURE,1,DIV,0,IMG selector:div.layout-column > figure.media > div.media-image--mobile > img snippet:<img src="/content/dam/twilio-com/global/en/homepage/one-twilio-temp/home_voice_twil…" loading="lazy"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:3974 height:200 left:66 right:346 top:3774 width:280] lhId:page-4-IMG nodeLabel:div.layout-column > figure.media > div.media-image--mobile > img path:1,HTML,1,BODY,7,MAIN,5,DIV,0,DIV,0,DIV,3,A,0,DIV,0,DIV,2,FIGURE,1,DIV,0,IMG selector:div.layout-column > figure.media > div.media-image--mobile > img snippet:<img src="/content/dam/twilio-com/global/en/homepage/one-twilio-temp/home_authentica…" loading="lazy"> type:node] score:0.126531 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3502 height:200 left:66 right:346 top:3302 width:280] lhId:page-9-IMG nodeLabel:div.layout-column > figure.media > div.media-image--mobile > img path:1,HTML,1,BODY,7,MAIN,5,DIV,0,DIV,0,DIV,2,A,0,DIV,0,DIV,2,FIGURE,1,DIV,0,IMG selector:div.layout-column > figure.media > div.media-image--mobile > img snippet:<img src="/content/dam/twilio-com/global/en/homepage/one-twilio-temp/home_voice_twil…" loading="lazy"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1108 height:909 left:0 right:412 top:199 width:412] lhId:page-1-DIV nodeLabel:Where amazing customer experiences are built The Twilio Customer Engagement pl… path:1,HTML,1,BODY,7,MAIN,2,DIV selector:body#base-page-bc527d2ac7 > main.column-container > div.layout-container snippet:<div id="" class="layout-container bg-color-ink-100 full-width top--lg bot--sm m-bot--sm dar…" style="background-image: url(&quot;&quot;);" background-image="" is-background-video="false" mobile-background-image=""> type:node] score:0.078544] map[node:map[boundingRect:map[bottom:0 height:0 left:0 right:0 top:0 width:0] lhId:page-2-INPUT nodeLabel:Search path:1,HTML,1,BODY,6,HEADER,0,DIV,0,SECTION,1,DIV,0,DIV,2,DIV,0,DIV,1,DIV,0,DIV,0,DIV,0,FORM,0,INPUT selector:div#search-box > div.ais-SearchBox > form.ais-SearchBox-form > input.ais-SearchBox-input snippet:<input class="ais-SearchBox-input" type="search" placeholder="" autocomplete="off" autocorrect="off" autocapitalize="off" spellcheck="false" maxlength="512" aria-label="Search"> type:node] score:0.000147 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:3502 height:200 left:66 right:346 top:3302 width:280] lhId:page-9-IMG nodeLabel:div.layout-column > figure.media > div.media-image--mobile > img path:1,HTML,1,BODY,7,MAIN,5,DIV,0,DIV,0,DIV,2,A,0,DIV,0,DIV,2,FIGURE,1,DIV,0,IMG selector:div.layout-column > figure.media > div.media-image--mobile > img snippet:<img src="/content/dam/twilio-com/global/en/homepage/one-twilio-temp/home_voice_twil…" loading="lazy"> type:node]] map[cause:Web font extra:map[type:url value:https://assets.qualified.com/packs/media/Inter-roman.var.b2129c00.woff2]]] type:subitems]]]

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.

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.

URLEst Savings
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...50 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...45 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...40 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...35 ms

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:994.882 source:map[column:71450 line:1 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/7941.84fb182c4d4df94034ad.js 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:87.218 source:map[column:376826 line:19 type:source-location url: urlProvider:network]] map[reflowTime:2.141 source:map[column:181 line:107 type:source-location url:https://www.twilio.com/etc.clientlibs/clientlibs/granite/jquery.lc-7842899024219bcbdb5e72c946870b79-lc.min.js urlProvider:network]] map[reflowTime:429.122 source:map[column:4339 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/7941.84fb182c4d4df94034ad.js urlProvider:network]] map[reflowTime:514.673 source:map[column:34939 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/7941.84fb182c4d4df94034ad.js urlProvider:network]] map[reflowTime:16.034 source:map[column:41110 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/7941.84fb182c4d4df94034ad.js urlProvider:network]] map[reflowTime:250.957 source:map[column:170 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/2733.763624ea7e5271a68ff8.js urlProvider:network]] map[reflowTime:97.703 source:map[column:35443 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/7941.84fb182c4d4df94034ad.js urlProvider:network]] map[reflowTime:8.944 source:map[column:2759 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/2733.763624ea7e5271a68ff8.js urlProvider:network]] map[reflowTime:1.242 source:map[column:4159 line:0 type:source-location url:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dynamic-modules/resources/2733.763624ea7e5271a68ff8.js urlProvider:network]] map[reflowTime:11.857 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: div.layout-column > figure.media > div.media-image--mobile > img
path: 1,HTML,1,BODY,7,MAIN,2,DIV,0,DIV,0,DIV,1,DIV,0,FIGURE,1,DIV,0,IMG
selector: div.layout-column > figure.media > div.media-image--mobile > img
snippet: <img src="/content/dam/twilio-com/global/en/homepage/one-twilio-temp/hero_personaliz…" loading="lazy">

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
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...300.0 KiB1.5 s
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...4.2 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...124.6 KiB752 ms
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...99.6 KiB451 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...126.1 KiB601 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...389.6 KiB2.6 s
/etc.clientlibs/clientlibs/granite/utils.lc-e7bf340a353e6...8.9 KiB150 ms
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...507 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...520 B
consent.trustarc.com/get?name=trustarc-segment-wrapper-v1.1.js4.4 KiB756 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...509 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...519 B
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...13.5 KiB150 ms

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.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...197.5 KiB179.0 KiB
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...163.7 KiB148.3 KiB
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...147.7 KiB133.8 KiB
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...138.1 KiB125.1 KiB
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...120.3 KiB109.1 KiB
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...88.5 KiB65.7 KiB
Search div.navigation-v2__search-viewport > div#search-box > div.ais-SearchBox > form.ais-SearchBox-form
/uploads/7U9MgMQ6uePz13d8qcmSoMTKcS6bDmqd866pJ/d0f8c211b5...68.1 KiB61.3 KiB
A man wearing headphones working on a dual-monitor computer setup with code dis… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...33.3 KiB8.8 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

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.

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: 784 ms
URLTime Spent
www.twilio.com/784 ms
www.twilio.com/en-us0.0 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
iframe#q-messenger-frame iframe#q-messenger-frame
0.167
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
0.127
Where amazing customer experiences are built The Twilio Customer Engagement pl… body#base-page-bc527d2ac7 > main.column-container > div.layout-container
0.079
Search div#search-box > div.ais-SearchBox > form.ais-SearchBox-form > input.ais-SearchBox-input
0.000

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.

Estimated savings: 3.5 s 635.9 KiB
URLTransfer SizeEst Savings
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...388.6 KiB351.7 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...299.2 KiB284.2 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 9.4 s 1.9 MiB
URLTransfer SizeEst Savings
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...865.6 KiB602.5 KiB
js.qualified.com/qualified.js?token=zCnvhQFqeieM7u15366.1 KiB267.5 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...232.0 KiB178.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...206.9 KiB134.0 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...123.9 KiB88.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...125.4 KiB79.9 KiB
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...98.9 KiB64.5 KiB
www.googletagmanager.com/gtag/js?id=G-RRP8K4M4F3&cx=c&gtm=4e6460172.0 KiB64.0 KiB
www.googletagmanager.com/gtm.js?id=GTM-5JLZ694195.1 KiB55.7 KiB
www.googletagmanager.com/gtag/js?id=DC-11875831&cx=c&gtm=4e6460129.7 KiB55.5 KiB
www.googletagmanager.com/gtag/js?id=AW-751085158&cx=c&gtm=4e6460133.3 KiB54.8 KiB
www.googletagmanager.com/gtag/js?id=AW-923471531&cx=c&gtm=4e6460136.7 KiB53.6 KiB
www.googletagmanager.com/gtag/js?id=AW-923239173&cx=c&gtm=4e6460146.5 KiB52.1 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...92.4 KiB40.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...39.3 KiB35.8 KiB
connect.facebook.net/en_US/fbevents.js94.8 KiB30.3 KiB
www.datadoghq-browser-agent.com/us1/v6/datadog-rum.js57.9 KiB27.4 KiB
assets.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js75.2 KiB26.2 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
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7.1 s1.3 s12 ms
Unattributable2.4 s289 ms0.0 ms
www.twilio.com/en-us2.3 s398 ms204 ms
assets.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js1.8 s1.5 s44 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...1.2 s157 ms30 ms
www.googletagmanager.com/gtag/js?id=AW-751085158&cx=c&gtm=4e64601.2 s1.1 s49 ms
euob.powerrobotflower.com/sxp/i/40532d5df9f288cf593998bcff0654c9.js903 ms689 ms16 ms
js.qualified.com/qualified.js?token=zCnvhQFqeieM7u15832 ms558 ms178 ms
www.googletagmanager.com/gtm.js?id=GTM-5JLZ694585 ms411 ms123 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...543 ms442 ms16 ms
www.datadoghq-browser-agent.com/us1/v6/datadog-rum.js473 ms334 ms34 ms
/ct?id=25118&url=https%3A%2F%2Fwww.twilio.com%2Fen-us&sf=...467 ms440 ms1.7 ms
www.googletagmanager.com/gtag/js?id=G-RRP8K4M4F3&cx=c&gtm=4e6460322 ms242 ms66 ms
www.googletagmanager.com/gtag/js?id=AW-923239173&cx=c&gtm=4e6460307 ms196 ms56 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...301 ms197 ms104 ms
scripts.clarity.ms/0.8.59/clarity.js219 ms205 ms11 ms
www.googletagmanager.com/gtag/js?id=DC-11875831&cx=c&gtm=4e6460203 ms154 ms47 ms
cdn.siftscience.com/s.js202 ms165 ms7.1 ms
www.googletagmanager.com/gtag/js?id=AW-923471531&cx=c&gtm=4e6460193 ms141 ms50 ms
connect.facebook.net/en_US/fbevents.js184 ms137 ms46 ms
j.6sc.co/6si.min.js173 ms158 ms8.3 ms
/analytics-next/bundles/schemaFilter.bundle.1b218d13fed02...169 ms165 ms0.6 ms
/signals/config/1040773425961662?v=2.9.291&r=stable&domai...158 ms135 ms21 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...140 ms123 ms17 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...138 ms111 ms26 ms
/notice?domain=twilio.com&c=teconsent&gtm=1&js=nj&noticeT...101 ms67 ms4.3 ms
snap.licdn.com/li.lms-analytics/insight.min.js96 ms69 ms23 ms
tags.srv.stackadapt.com/events.js89 ms69 ms3.0 ms
consent.trustarc.com/get?name=trustarc-segment-wrapper-v1.1.js85 ms44 ms1.9 ms
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...79 ms52 ms15 ms
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...70 ms51 ms18 ms
analytics.silktide.com/300433ab0ed34c0bb2bb1cd50cb4f829.js55 ms38 ms8.7 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 Evaluation11.8 s
Style & Layout7.3 s
Other3.2 s
Script Parsing & Compilation1.3 s
Rendering606 ms
Garbage Collection386 ms
Parse HTML & CSS299 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
The page has an unload handler in the main frame.Actionable
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 5.1 KiB
URLTransfer SizeEst Savings
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...13.5 KiB5.1 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
assets.qualified.com/static-media/piperx-loading/Ruby.mp42.6 MiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...868.1 KiB
assets.qualified.com/packs/js/widget/sandboxed/messenger-5f040460.js803.4 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...389.6 KiB
js.qualified.com/qualified.js?token=zCnvhQFqeieM7u15369.9 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...300.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...232.8 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...223.9 KiB
assets.qualified.com/packs/media/Inter-roman.var.b2129c00.woff2222.3 KiB
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...213.8 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
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...
A man wearing headphones working on a dual-monitor computer setup with code dis… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/twilio-com/global/en/homepage/one-twilio-tem...

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

●Optimize DOM size
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify JavaScript
●User Timing marks and measures 32 user timings
●Avoid long main-thread tasks 20 long tasks found
●Avoid non-composited animations 1 animated element found
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 390 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
86

Accessibility

These checks highlight opportunities to improve the accessibility of your web app. Automatic detection can only detect a subset of issues and does not guarantee the accessibility of your web app, so manual testing is also encouraged.

ARIA

Assistive technologies, like screen readers, can't interpret ARIA attributes with invalid values. Learn more about valid values for ARIA attributes.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Slide 1 of 5 div.slider > nav.slider-pagination > div.slider-dots > button.slider-button

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Python logo div.layout-column > div.logo-list > div.logo-list-item > span
C# logo div.layout-column > div.logo-list > div.logo-list-item > span
PHP logo div.layout-column > div.logo-list > div.logo-list-item > span
Ruby logo div.layout-column > div.logo-list > div.logo-list-item > span
Java logo div.layout-column > div.logo-list > div.logo-list-item > span
JavaScript logo div.layout-column > div.logo-list > div.logo-list-item > span
Curl logo div.layout-column > div.logo-list > div.logo-list-item > span
AI assistant body#base-page-bc527d2ac7 > q-focus-sentinel > div
After AI assistant body#base-page-bc527d2ac7 > q-focus-sentinel > div
AI assistant, start div#qualified-multimodal-host > div
AI assistant, end div#qualified-multimodal-host > div

These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive technology, like a screen reader.

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
Messaging div.layout-container > div.layout-column > div.richtext > h4
Make every interaction smarter with AI div.layout-container > div.layout-column > div.richtext > h4

These are opportunities to improve keyboard navigation in your application.

Names and labels

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img

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.

Visible text labels that do not match the accessible name can result in a confusing experience for screen reader users. Learn more about accessible names.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Messaging Send, receive, and manage multichannel text messages on our globally… div.layout-container > div.layout-column > div#products-grid-1 > a.layout-column
Email Trusted Email API for email delivery at scale that you can implement in … div.layout-container > div.layout-column > div#products-grid-1 > a.layout-column
Voice Build voice experiences that increase customer satisfaction and unlock R… div.layout-container > div.layout-column > div#products-grid-1 > a.layout-column
Authentication and identity Fight fraud and keep customer accounts secure with… div.layout-container > div.layout-column > div#products-grid-1 > a.layout-column
Customer Data Platform Bring together clean, consented customer data for real-… div.layout-container > div.layout-column > div#products-grid-1 > a.layout-column
        Twilio named a Leader in 2025 Gartner® Magic Quadrant™ for CPaaS* … div.layout-container > div.layout-column > div#products-grid-1 > a.layout-column
Twilio named a Leader in 2025 Gartner® Magic Quadrant™ for CPaaS*     Downlo… div.layout-container > div.layout-column > div#we-believe-in > a.layout-column
Download report div.layout-container > div.layout-column > div.button-container > a.button
Twilio named a CPaaS Leader in 2025 IDC MarketScape       Download excerpt div.layout-container > div.layout-column > div#we-believe-in > a.layout-column
Download excerpt div.layout-container > div.layout-column > div.button-container > a.button
Twilio named a Leader in 2024-2025 IDC MarketScape for Worldwide Customer Data … div.layout-container > div.layout-column > div#we-believe-in > a.layout-column
Download excerpt div.layout-container > div.layout-column > div.button-container > a.button
○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 are valid and not misspelled
●Buttons have an accessible name
●`[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
●Background and foreground colors have a sufficient contrast ratio
●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.
●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
●ARIA IDs are unique
●Identical links have the same purpose.
○`[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
○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
○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
○`<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.
○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.
77

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
snap.licdn.com/li.lms-analytics/insight.min.js
Unload event listeners are deprecated and will be removed.
blob:https://www.twilio.com/e1427ccf-fc62-415e-8bb4-57fd89fdd718

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.datadoghq-browser-agent.com/us1/v6/datadog-rum.js
Error: gtag did not load within 10000 ms at https://www.twilio.com/en-us:18941:24

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLMap URL
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...
/analytics.js/v1/NBBzVMlQO9GFFqU6upGyk4gqf6zV28TH/analyti.../analytics.js/v1/NBBzVMlQO9GFFqU6upGyk4gqf6zV28TH/standal...
/analytics-next/bundles/tsub-middleware.bundle.d94be5c4b3.../analytics-next/bundles/tsub-middleware.bundle.d94be5c4b3...
/analytics-next/bundles/schemaFilter.bundle.1b218d13fed02.../analytics-next/bundles/schemaFilter.bundle.1b218d13fed02...
/analytics-next/bundles/legacyVideos.bundle.d6d584dd16b19.../analytics-next/bundles/legacyVideos.bundle.d6d584dd16b19...
/analytics-next/bundles/ajs-destination.bundle.8e6b895db7.../analytics-next/bundles/ajs-destination.bundle.8e6b895db7...
cdn.segment.com/analytics-next/bundles/407.bundle.61efa1acb302134c434b.jscdn.segment.com/analytics-next/bundles/407.bundle.61efa1acb302134c434b.js.map
●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 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
○Redirects HTTP traffic to HTTPS
○Mitigate clickjacking with XFO or CSP
85

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
Resource … div.product-recommender-modal__content > section.product-recommender-modal__resources > div.product-recommender-modal__resource-cards > a.product-recommender-modal__resource-card

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

Content Best Practices

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img
div.layout-column > figure.media > div.media-image--mobile > img div.layout-column > figure.media > div.media-image--mobile > img

Format your HTML in a way that enables crawlers to better understand your app’s content.

○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
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`

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