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Audit Complete

Results for https://www.segment.com

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Spain Spain · Madrid Completed: Apr 7, 2026 20:26 UTC

Mobile 375 × 812

Screenshot of the audited page (Mobile 375×812)

Desktop 1440 × 900

Screenshot of the audited page (Desktop 1440×900)
C70

Site Health

Score: 70 / 100

Based on 8 categories, 0 sections

How is this calculated?

The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.

Performance 25%Security 25%Accessibility 15%SEO 10%Infrastructure 10%Compliance 8%Content 5%Sustainability 2%

Weights reflect general web best practices. Individual needs may differ.

Top Priorities (5)

1

Content-Security-Policy header is missing

Security › Security Headers
2

HSTS header is missing

Security › Security Headers
3

No Content-Security-Policy header found

Security › Content Security Policy
4

1 image(s) missing alt attribute

Accessibility › Alt Text Quality
5

Soft 404: server returns HTTP 200 for non-existent pages

Accessibility › 404 Error Page
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Lighthouse Scores

Industry-standard audits powered by Google Lighthouse.

18
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
73
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience.

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

9.82 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

15.22 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

710 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.468

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

9.82 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

24.39 s

Detailed Report

Audit breakdown by category with detailed findings.

18

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

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

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

RequestCache TTLTransfer Size
/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
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s232.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s207.7 KiB
/content/dam/segment/global/en/Home-page/rebrand/Segment_...3600.0 s157.6 KiB
/content/dam/segment/global/en/Home-page/rebrand/Segment_...3600.0 s132.8 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
assets.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js3600.0 s75.5 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/segment/global/en/Home-page/rebrand/Segment_...3600.0 s47.1 KiB
/signals/config/1040773425961662?v=2.9.291&r=stable&domai...1200.0 s38.8 KiB
/analytics.js/v1/NBBzVMlQO9GFFqU6upGyk4gqf6zV28TH/analyti...120.0 s29.9 KiB
euob.powerrobotflower.com/sxp/i/40532d5df9f288cf593998bcff0654c9.js43200.0 s44.5 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s22.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s20.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s17.2 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js600.0 s11.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s10.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s10.4 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
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s6.7 KiB
/notice?domain=twilio.com&c=teconsent&gtm=1&js=nj&noticeT...3600.0 s6.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s4.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s3.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s2.7 KiB
jscloud.net/x/13724/inlinks.js14400.0 s2.2 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
/collect?v=2&fmt=js&pid=19502&time=1775593428370&url=http...0.0 ms694 B
/a62564f453ce/b1b9d7ec982b/b31050163b61/RCfe5fa4ba4d174dd...3600.0 s832 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s804 B
/collect?v=2&fmt=js&pid=19502&time=1775593428369&conversi...0.0 ms391 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 s511 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s511 B
/tr/?id=1040773425961662&ev=CHEQ&dl=https%3A%2F%2Fwww.twi...0.0 ms271 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms59 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms49 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms49 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms49 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms49 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms11 B
/a?id=GTM-5JLZ694&v=3&t=t&pid=1447486077&gtm=45He6460v892...0.0 ms11 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.

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:0.467827] map[node:map[boundingRect:map[bottom:928 height:617 left:61 right:351 top:311 width:290] lhId:page-14-DIV nodeLabel:Required Cookies These cookies are necessary to enable the basic features of th… path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,0,DIV,0,DIV,2,DIV selector:div > div.mainContent > div.gdpr > div.prefPanel snippet:<div class="prefPanel" style="visibility: visible; transition: all; max-height: none;"> type:node] score:0.184487 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1119 height:20 left:296 right:351 top:1099 width:55] lhId:page-19-IMG nodeLabel:div.footer > div.right > a > img.inline-e3jf3l path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV,1,DIV,2,A,0,IMG selector:div.footer > div.right > a > img.inline-e3jf3l snippet:<img class="inline-e3jf3l" alt="" src="https://consent.trustarc.com/get?name=Powered-By-TrustArc.png" target="_blank"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1117 height:994 left:0 right:412 top:123 width:412] lhId:page-6-DIV nodeLabel:Segment ❤️ Twilio. We're finally moving in together on Twilio.com! We're mergin… path:1,HTML,1,BODY,7,MAIN,2,DIV selector:body#base-page-40eafe0d3f > main.column-container > div.layout-container snippet:<div id="" class="layout-container bg-color-ink-100 full-width dark-theme bg-same layout-co…" style="background-image: url(&quot;&quot;);" background-image="" is-background-video="false" mobile-background-image=""> type:node] score:0.12815 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:989 height:261 left:32 right:380 top:728 width:348] lhId:page-2-IMG nodeLabel:Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… 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/segment/global/en/Home-page/rebrand/Segment_hero_twilio.png/_…" alt="Four interlocking puzzle pieces with icons of a message, speech bubble, lo…" loading="lazy"> type:node]] map[cause:Web font extra:map[type:url value:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-site/resources/220e5b59f8588716f4d8.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:1129 height:45 left:41 right:371 top:1084 width:330] lhId:page-9-DIV nodeLabel:Privacy Policy Powered by: path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV selector:div.wrapper > div > div.footer snippet:<div class="footer" style=""> type:node] score:0.060097 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:989 height:261 left:32 right:380 top:728 width:348] lhId:page-2-IMG nodeLabel:Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… 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/segment/global/en/Home-page/rebrand/Segment_hero_twilio.png/_…" alt="Four interlocking puzzle pieces with icons of a message, speech bubble, lo…" loading="lazy"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:1129 height:45 left:41 right:371 top:1084 width:330] lhId:page-9-DIV nodeLabel:Privacy Policy Powered by: path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV selector:div.wrapper > div > div.footer snippet:<div class="footer" style=""> type:node] score:0.039368 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:1119 height:20 left:296 right:351 top:1099 width:55] lhId:page-19-IMG nodeLabel:div.footer > div.right > a > img.inline-e3jf3l path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV,1,DIV,2,A,0,IMG selector:div.footer > div.right > a > img.inline-e3jf3l snippet:<img class="inline-e3jf3l" alt="" src="https://consent.trustarc.com/get?name=Powered-By-TrustArc.png" target="_blank"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:928 height:617 left:61 right:351 top:311 width:290] lhId:page-14-DIV nodeLabel:Required Cookies These cookies are necessary to enable the basic features of th… path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,0,DIV,0,DIV,2,DIV selector:div > div.mainContent > div.gdpr > div.prefPanel snippet:<div class="prefPanel" style="visibility: visible; transition: all; max-height: none;"> type:node] score:0.02597]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

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

URLResource SizeEst Savings
Diagram showing data sources, customer profile, and engagement channels for str… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...156.8 KiB128.4 KiB
Diagram showing a central Connections node linking to sources like Braze, Node.… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...132.1 KiB103.1 KiB
Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...46.4 KiB27.8 KiB

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.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

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.

TTI

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

Estimated savings: 2.3 s

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

ElementLayout shift score
Required Cookies These cookies are necessary to enable the basic features of th… div > div.mainContent > div.gdpr > div.prefPanel
0.184
Segment ❤️ Twilio. We're finally moving in together on Twilio.com! We're mergin… body#base-page-40eafe0d3f > main.column-container > div.layout-container
0.128
Privacy Policy Powered by: div.wrapper > div > div.footer
0.060
Privacy Policy Powered by: div.wrapper > div > div.footer
0.039
Required Cookies These cookies are necessary to enable the basic features of th… div > div.mainContent > div.gdpr > div.prefPanel
0.026
Visit Twilio.com See what's possible div.layout-column > div.layout-container > div.layout-column > div.button-container
0.024
Visit Twilio.com See what's possible div.layout-column > div.layout-container > div.layout-column > div.button-container
0.006

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.

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.

Estimated savings: 3.3 s 658.5 KiB

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

CategoryTime Spent
Script Evaluation3.5 s
Other1.1 s
Style & Layout673 ms
Script Parsing & Compilation414 ms
Garbage Collection155 ms
Parse HTML & CSS139 ms
Rendering69 ms

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Estimated savings: 0.0 ms 4.3 KiB
URLTransfer SizeEst Savings
inline: "use strict"; function _slicedToA…17.8 KiB4.3 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

URL
Diagram showing a central Connections node linking to sources like Braze, Node.… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...
Diagram showing data sources, customer profile, and engagement channels for str… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...
Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… div.layout-column > figure.media > div.media-image--mobile > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...
Cookie Preferences body#base-page-40eafe0d3f > div#teconsent > a#icon-id07085623424129494 > img.truste_border_none
consent.trustarc.com/asset/twilio2.png

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

Optimize DOM size
Forced reflow
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 5 user timings
Avoid long main-thread tasks 18 long tasks found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 270 ms
Server Backend Latencies 270 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 50 ms
INP breakdown
LCP request discovery
Avoid non-composited animations
88

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Failing Elements
No Yes div.prefPanel > div > div.cookiecat > div.switch
No Yes div.prefPanel > div > div.cookiecat > div.switch

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

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Failing Elements
div#pop-outerdiv07877461049271264 > div#pop-div205010762741367273 > div#pop-div308067838302903054 > div#pop-frame037344766296205445 div#pop-outerdiv07877461049271264 > div#pop-div205010762741367273 > div#pop-div308067838302903054 > div#pop-frame037344766296205445

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Failing Elements
Customer data pipeline div.layout-container > div.layout-column > div.richtext > h5
Required Cookies div.cookiecat > div > span.gwt-InlineHTML > h3

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.

Failing Elements
div > div.footer > div.right > a div > div.footer > div.right > 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.

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.

Failing Elements
VIEW REQUIRED COOKIES div.prefPanel > div > div.cookiecat > a.viewcookie
DETAILED SETTINGS div.prefPanel > div > div.cookiecat > a.viewcookie
No div > div.cookiecat > div.switch > span.gwt-InlineHTML
Yes div > div.cookiecat > div.switch > span.gwt-InlineHTML
DETAILED SETTINGS div.prefPanel > div > div.cookiecat > a.viewcookie
No div > div.cookiecat > div.switch > span.gwt-InlineHTML
Yes div > div.cookiecat > div.switch > span.gwt-InlineHTML
Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[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
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
Elements use only permitted ARIA attributes
Background and foreground colors have a sufficient contrast ratio
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
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
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.
`<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.
73

Best Practices

User Experience

Image natural dimensions should be proportional to the display size and the pixel ratio to maximize image clarity. Learn how to provide responsive images.

URLDisplayed sizeActual sizeExpected size
Cookie Preferences body#base-page-40eafe0d3f > div#teconsent > a#icon-id07085623424129494 > img.truste_border_none
consent.trustarc.com/asset/twilio2.png160 x 33160 x 33240 x 50

General

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

Deprecation / WarningSource
AttributionReporting

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

SourceDescription
Access to fetch at 'https://apm.yahoo.co.jp/rt/?p=1001119880&label=cheq_invalidUsers&ref=https%3A%2F%2Fwww.twilio.com%2Fen-us%2Fsegment&rref=&pt=&item=&cat=&price=&quantity=&et_optout=false&r=1775593430.0234509&pvid=aondrlwe4rbmnp2hev0&__lt__cid_valid=false&_impl=ytag&brands=%22Not-A.Brand%22%3B%20v%3D%2224.0.0.0%22%2C%20%22Chromium%22%3B%20v%3D%22146.0.7680.177%22&platform=%22Android%22&platform_version=%2211.0%22' from origin 'https://www.twilio.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
www.twilio.com/en-us/segment line 14760, col 20
Error: gtag did not load within 10000 ms at https://www.twilio.com/en-us/segment:14575:24
Failed to load resource: net::ERR_FAILED
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
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
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
100

SEO

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

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

Lighthouse Scores

Industry-standard audits powered by Google Lighthouse. — Desktop

57
Performance Overall performance score (0–100) based on Core Web Vitals and other metrics. 90+ is good.
88
Accessibility Measures how accessible the page is for users with disabilities. Checks color contrast, ARIA labels, and semantic HTML.
77
Best Practices Checks for modern web development best practices including HTTPS, no console errors, and secure JavaScript.
100
SEO Measures basic SEO optimizations: meta tags, crawlability, link text, and mobile friendliness.

Core Web Vitals

Key metrics that affect user experience. — Desktop

First Contentful Paint First Contentful Paint — how long until the browser renders the first piece of content. Under 1.8s is good.

2.65 s

Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.

4.13 s

Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.

18 ms

Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.

0.160

Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.

2.65 s

Time to Interactive Time to Interactive — how long until the page is fully interactive and responds to user input. Under 3.8s is good.

4.14 s

Detailed Report

Audit breakdown by category with detailed findings.

57

Performance

Insights

Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.

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

3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.

A long cache lifetime can speed up repeat visits to your page. Learn more about caching.

RequestCache TTLTransfer Size
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s389.6 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...7200.0 s300.1 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s232.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s207.7 KiB
/content/dam/segment/global/en/Home-page/rebrand/Segment_...3600.0 s157.6 KiB
/content/dam/segment/global/en/Home-page/rebrand/Segment_...3600.0 s132.8 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 s99.7 KiB
assets.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js3600.0 s75.5 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/segment/global/en/Home-page/rebrand/Segment_...3600.0 s47.1 KiB
/signals/config/1040773425961662?v=2.9.291&r=stable&domai...1200.0 s38.8 KiB
/analytics.js/v1/NBBzVMlQO9GFFqU6upGyk4gqf6zV28TH/analyti...120.0 s29.9 KiB
euob.powerrobotflower.com/sxp/i/40532d5df9f288cf593998bcff0654c9.js43200.0 s44.5 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s22.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s20.9 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s17.2 KiB
s.yimg.jp/images/listing/tool/cv/ytag.js600.0 s11.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s10.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s10.4 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
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s6.7 KiB
/notice?domain=twilio.com&c=teconsent&gtm=1&js=nj&noticeT...3600.0 s6.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s4.8 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s3.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s2.7 KiB
jscloud.net/x/13724/inlinks.js14400.0 s2.2 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
/collect?v=2&fmt=js&pid=19502&time=1775593489061&conversi...0.0 ms692 B
/a62564f453ce/b1b9d7ec982b/b31050163b61/RCfe5fa4ba4d174dd...3600.0 s832 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s808 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s525 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...7200.0 s524 B
/collect?v=2&fmt=js&pid=19502&time=1775593489063&url=http...0.0 ms390 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s515 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...7200.0 s514 B
/tr/?id=1040773425961662&ev=CHEQ&dl=https%3A%2F%2Fwww.twi...0.0 ms19 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.

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:0.159573] map[node:map[boundingRect:map[bottom:715 height:604 left:0 right:1350 top:111 width:1350] lhId:page-1-DIV nodeLabel:Segment ❤️ Twilio. We're finally moving in together on Twilio.com! We're mergin… path:1,HTML,1,BODY,7,MAIN,2,DIV selector:body#base-page-40eafe0d3f > main.column-container > div.layout-container snippet:<div id="" class="layout-container bg-color-ink-100 full-width dark-theme bg-same layout-co…" style="background-image: url(&quot;&quot;);" background-image="" is-background-video="false" mobile-background-image=""> type:node] score:0.073166 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:560 height:326 left:808 right:1243 top:234 width:435] lhId:page-0-IMG nodeLabel:Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… path:1,HTML,1,BODY,7,MAIN,2,DIV,0,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG selector:div.layout-column > figure.media > div.media-image > img snippet:<img src="/content/dam/segment/global/en/Home-page/rebrand/Segment_hero_twilio.png/_…" alt="Four interlocking puzzle pieces with icons of a message, speech bubble, lo…" class=" " loading="lazy"> type:node]] map[cause:Web font extra:map[type:url value:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-site/resources/220e5b59f8588716f4d8.woff2]] map[cause:Web font extra:map[type:url value:https://www.twilio.com/etc.clientlibs/twilio-foundation/clientlibs/clientlib-site/resources/ee7a891efcbc6ef61942.woff2]]] type:subitems]] map[node:map[boundingRect:map[bottom:676 height:419 left:365 right:985 top:257 width:620] lhId:page-8-DIV nodeLabel:Required Cookies These cookies are necessary to enable the basic features of th… path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,0,DIV,0,DIV,2,DIV selector:div > div.mainContent > div.gdpr > div.prefPanel snippet:<div class="prefPanel" style="visibility: visible; transition: all; max-height: none;"> type:node] score:0.050269 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:892 height:20 left:930 right:985 top:872 width:55] lhId:page-11-IMG nodeLabel:div.footer > div.right > a > img.inline-e3jf3l path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV,1,DIV,2,A,0,IMG selector:div.footer > div.right > a > img.inline-e3jf3l snippet:<img class="inline-e3jf3l" alt="" src="https://consent.trustarc.com/get?name=Powered-By-TrustArc.png" target="_blank"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:902 height:45 left:345 right:1005 top:857 width:660] lhId:page-3-DIV nodeLabel:Privacy Policy Powered by: path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV selector:div.wrapper > div > div.footer snippet:<div class="footer" style=""> type:node] score:0.015552 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:560 height:326 left:808 right:1243 top:234 width:435] lhId:page-0-IMG nodeLabel:Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… path:1,HTML,1,BODY,7,MAIN,2,DIV,0,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG selector:div.layout-column > figure.media > div.media-image > img snippet:<img src="/content/dam/segment/global/en/Home-page/rebrand/Segment_hero_twilio.png/_…" alt="Four interlocking puzzle pieces with icons of a message, speech bubble, lo…" class=" " loading="lazy"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:902 height:45 left:345 right:1005 top:857 width:660] lhId:page-3-DIV nodeLabel:Privacy Policy Powered by: path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV selector:div.wrapper > div > div.footer snippet:<div class="footer" style=""> type:node] score:0.011105 subItems:map[items:[map[cause:Unsized image element extra:map[boundingRect:map[bottom:892 height:20 left:930 right:985 top:872 width:55] lhId:page-11-IMG nodeLabel:div.footer > div.right > a > img.inline-e3jf3l path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,1,DIV,1,DIV,2,A,0,IMG selector:div.footer > div.right > a > img.inline-e3jf3l snippet:<img class="inline-e3jf3l" alt="" src="https://consent.trustarc.com/get?name=Powered-By-TrustArc.png" target="_blank"> type:node]]] type:subitems]] map[node:map[boundingRect:map[bottom:676 height:419 left:365 right:985 top:257 width:620] lhId:page-8-DIV nodeLabel:Required Cookies These cookies are necessary to enable the basic features of th… path:1,HTML,1,BODY,28,DIV,0,DIV,0,DIV,2,DIV,a,#document-fragment,1,DIV,0,DIV,0,DIV,0,DIV,2,DIV selector:div > div.mainContent > div.gdpr > div.prefPanel snippet:<div class="prefPanel" style="visibility: visible; transition: all; max-height: none;"> type:node] score:0.009461]]

Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.

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.

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:10.559 source:map[column:620 line:19 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 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:83.444 source:map[type:text value:[unattributed]]] map[reflowTime:3.384 source:map[column:376826 line:19 type:source-location url: urlProvider:network]] map[reflowTime:3.015 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:9.952 source:map[column:521 line:18 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 urlProvider:network]] map[reflowTime:0.628 source:map[column:1504 line:25 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 urlProvider:network]] map[reflowTime:10.559 source:map[column:684 line:18 type:source-location url:https://consent.trustarc.com/asset/adv-bundle.js?v=v1.7-8549 urlProvider:network]]]

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

lhId: page-0-IMG
nodeLabel: Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a…
path: 1,HTML,1,BODY,7,MAIN,2,DIV,0,DIV,0,DIV,1,DIV,0,FIGURE,0,DIV,0,IMG
selector: div.layout-column > figure.media > div.media-image > img
snippet: <img src="/content/dam/segment/global/en/Home-page/rebrand/Segment_hero_twilio.png/_…" alt="Four interlocking puzzle pieces with icons of a message, speech bubble, lo…" class=" " 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.

description: [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints help the browser establish a connection earlier in the page load, saving time when the first request for that origin is made. The following are the origins that the page preconnected to.
title: Preconnected origins
description: Add [preconnect](https://developer.chrome.com/docs/lighthouse/performance/uses-rel-preconnect/) hints to your most important origins, but try to use no more than 4.
title: Preconnect candidates
value: No additional origins are good candidates for preconnecting

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

URLResource SizeEst Savings
Diagram showing data sources, customer profile, and engagement channels for str… div.layout-column > figure.media > div.media-image > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...156.8 KiB130.3 KiB
Diagram showing a central Connections node linking to sources like Braze, Node.… div.layout-column > figure.media > div.media-image > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...132.1 KiB105.0 KiB
Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… div.layout-column > figure.media > div.media-image > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...46.4 KiB36.9 KiB

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

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

Estimated savings: 1.1 s

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

ElementLayout shift score
Segment ❤️ Twilio. We're finally moving in together on Twilio.com! We're mergin… body#base-page-40eafe0d3f > main.column-container > div.layout-container
0.073
Required Cookies These cookies are necessary to enable the basic features of th… div > div.mainContent > div.gdpr > div.prefPanel
0.050
Privacy Policy Powered by: div.wrapper > div > div.footer
0.016
Privacy Policy Powered by: div.wrapper > div > div.footer
0.011
Required Cookies These cookies are necessary to enable the basic features of th… div > div.mainContent > div.gdpr > div.prefPanel
0.009
0.000

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.

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.

Estimated savings: 430 ms 650.2 KiB

Minifying JavaScript files can reduce payload sizes and script parse time. Learn how to minify JavaScript.

Estimated savings: 0.0 ms 4.3 KiB
URLTransfer SizeEst Savings
inline: "use strict"; function _slicedToA…17.8 KiB4.3 KiB

Set an explicit width and height on image elements to reduce layout shifts and improve CLS. Learn how to set image dimensions

URL
Diagram showing a central Connections node linking to sources like Braze, Node.… div.layout-column > figure.media > div.media-image > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...
Diagram showing data sources, customer profile, and engagement channels for str… div.layout-column > figure.media > div.media-image > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...
Four interlocking puzzle pieces with icons of a message, speech bubble, lock, a… div.layout-column > figure.media > div.media-image > img
/content/dam/segment/global/en/Home-page/rebrand/Segment_...
Cookie Preferences body#base-page-40eafe0d3f > div#teconsent > a#icon-id004845891948880998 > img.truste_border_none
consent.trustarc.com/asset/twilio2.png

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

Max Potential First Input Delay 70 ms
Optimize DOM size
LCP breakdown
Modern HTTP
Optimize viewport for mobile
Minify CSS
User Timing marks and measures 10 user timings
JavaScript execution time 0.8 s
Minimizes main-thread work 1.8 s
Avoid long main-thread tasks 1 long task found
Page didn't prevent back/forward cache restoration
Network Requests
Network Round Trip Times 270 ms
Server Backend Latencies 270 ms
Tasks
Diagnostics
Metrics
Screenshot Thumbnails
Final Screenshot
Script Treemap Data
Resources Summary
Initial server response time was short Root document took 60 ms
INP breakdown
Avoid non-composited animations
88

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

Some ARIA parent roles must contain specific child roles to perform their intended accessibility functions. Learn more about roles and required children elements.

Failing Elements
No Yes div.prefPanel > div > div.cookiecat > div.switch
No Yes div.prefPanel > div > div.cookiecat > div.switch

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

A value greater than 0 implies an explicit navigation ordering. Although technically valid, this often creates frustrating experiences for users who rely on assistive technologies. Learn more about the `tabindex` attribute.

Failing Elements
div#pop-outerdiv03484605581818473 > div#pop-div207982122876594403 > div#pop-div309633958305485527 > div#pop-frame02832839646075562 div#pop-outerdiv03484605581818473 > div#pop-div207982122876594403 > div#pop-div309633958305485527 > div#pop-frame02832839646075562

Properly ordered headings that do not skip levels convey the semantic structure of the page, making it easier to navigate and understand when using assistive technologies. Learn more about heading order.

Failing Elements
Customer data pipeline div.layout-container > div.layout-column > div.richtext > h5
Required Cookies div.cookiecat > div > span.gwt-InlineHTML > h3

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.

Failing Elements
div > div.footer > div.right > a div > div.footer > div.right > 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.

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.

Failing Elements
VIEW REQUIRED COOKIES div.prefPanel > div > div.cookiecat > a.viewcookie
DETAILED SETTINGS div.prefPanel > div > div.cookiecat > a.viewcookie
No div > div.cookiecat > div.switch > span.gwt-InlineHTML
Yes div > div.cookiecat > div.switch > span.gwt-InlineHTML
DETAILED SETTINGS div.prefPanel > div > div.cookiecat > a.viewcookie
No div > div.cookiecat > div.switch > span.gwt-InlineHTML
Yes div > div.cookiecat > div.switch > span.gwt-InlineHTML
Interactive controls are keyboard focusable
Interactive elements indicate their purpose and state
The page has a logical tab order
Visual order on the page follows DOM order
User focus is not accidentally trapped in a region
The user's focus is directed to new content added to the page
HTML5 landmark elements are used to improve navigation
Offscreen content is hidden from assistive technology
Custom controls have associated labels
Custom controls have ARIA roles
`[aria-*]` attributes match their roles
`[aria-hidden="true"]` is not present on the document `<body>`
`[role]`s have all required `[aria-*]` attributes
`[role]` values are valid
`[aria-*]` attributes have valid values
`[aria-*]` attributes are valid and not misspelled
Buttons have an accessible name
Image elements have `[alt]` attributes
`[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
Elements with `role="dialog"` or `role="alertdialog"` have accessible names.
`[aria-hidden="true"]` elements do not contain focusable descendents
ARIA input fields have accessible names
Elements use only permitted ARIA attributes
Background and foreground colors have a sufficient contrast ratio
Document has a `<title>` element
`<html>` element has a `[lang]` attribute
`<html>` element has a valid value for its `[lang]` attribute
Links are distinguishable without relying on color.
Lists contain only `<li>` elements and script supporting elements (`<script>` and `<template>`).
List items (`<li>`) are contained within `<ul>`, `<ol>` or `<menu>` parent elements
Touch targets have sufficient size and spacing.
`[lang]` attributes have a valid value
Document has a main landmark.
Deprecated ARIA roles were not used
Identical links have the same purpose.
`[accesskey]` values are unique
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
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.
`<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.

Deprecation / WarningSource
AttributionReporting

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

SourceDescription
Access to fetch at 'https://apm.yahoo.co.jp/rt/?p=1001119880&label=cheq_invalidUsers&ref=https%3A%2F%2Fwww.twilio.com%2Fen-us%2Fsegment&rref=&pt=&item=&cat=&price=&quantity=&et_optout=false&r=1775593491.2596714&pvid=mti3alg4fxemnp2ipgp&__lt__cid_valid=false&_impl=ytag&brands=%22Not-A.Brand%22%3B%20v%3D%2224.0.0.0%22%2C%20%22Chromium%22%3B%20v%3D%22146.0.7680.177%22&platform=%22macOS%22&platform_version=%2210.15.7%22' from origin 'https://www.twilio.com' has been blocked by CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.
www.twilio.com/en-us/segment line 14760, col 20
Error: gtag did not load within 10000 ms at https://www.twilio.com/en-us/segment:14575:24
Failed to load resource: net::ERR_FAILED
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
Page has valid source maps
Redirects HTTP traffic to HTTPS
Mitigate clickjacking with XFO or CSP
100

SEO

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

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

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