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Lighthouse Desktop

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

Audit breakdown by category with detailed findings.

87

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.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js3600.0 s75.5 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s74.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s73.9 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/authy/global/en/legacy/maxresdefault.png/_jc...3600.0 s58.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s61.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s51.8 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...7200.0 s43.2 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...7200.0 s39.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...7200.0 s38.5 KiB
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...7200.0 s35.6 KiB
/content/dam/authy/global/en/legacy/hero-home.jpg/_jcr_co...3600.0 s31.7 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s11.9 KiB
/notice?domain=authy.com&c=teconsent&gtm=1&js=nj&noticeTy...3600.0 s6.3 KiB
/etc.clientlibs/clientlibs/granite/utils.lc-e7bf340a353e6...7200.0 s4.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s3.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s2.6 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s2.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s1.5 KiB
rum.hlx.page/.rum/@adobe/helix-rum-js@%5E2/dist/micro.js3600.0 s1.0 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s1011 B
/a62564f453ce/b1b9d7ec982b/b31050163b61/RCfe5fa4ba4d174dd...3600.0 s832 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...7200.0 s787 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...7200.0 s570 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s568 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...7200.0 s559 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...7200.0 s558 B

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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...30 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...30 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...15 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...15 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
Authy Logo div#cookieMainHeader > div > div.logo > img.inline-31k2zd
consent.trustarc.com/get?name=logo-authy-color-full.png21.6 KiB19.6 KiB
div.layout-container > div.layout-column > button.cmp-media > img.cmp-media-video__thumbnail div.layout-container > div.layout-column > button.cmp-media > img.cmp-media-video__thumbnail
/content/dam/authy/global/en/legacy/maxresdefault.png/_jc...57.4 KiB12.1 KiB

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-2-DIV
nodeLabel: Enable 2FA for your favorite sites. Go beyond the password and protect yoursel…
path: 1,HTML,1,BODY,5,MAIN,1,DIV
selector: body#base-page-f083503c44 > main.column-container > div.layout-container
snippet: <div id="" class="layout-container bg-color-ink-100 full-width dark-theme bg-image bg-size-c…" style="background-image: url(&quot;/content/dam/authy/global/en/legacy/hero-home.jpg/_j…&quot;);" background-image="/content/dam/authy/global/en/legacy/hero-home.jpg/_jcr_content/renditions/…" is-background-video="false" mobile-background-image="">

Avoid chaining critical requests by reducing the length of chains, reducing the download size of resources, or deferring the download of unnecessary resources to improve page load.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Requests are blocking the page's initial render, which may delay LCP. Deferring or inlining can move these network requests out of the critical path.

Why this matters

Performance issues directly impact user engagement and conversion rates.

URLTransfer SizeDuration
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...35.6 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...39.0 KiB
/etc.clientlibs/clientlibs/granite/utils.lc-e7bf340a353e6...4.0 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...43.2 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...38.5 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...568 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...51.8 KiB81 ms
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...570 B
/etc.clientlibs/twilio-com/clientlibs/clientlib-dependenc...559 B
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-de...558 B

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

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: 80 ms 89.3 KiB
URLTransfer SizeEst Savings
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...51.2 KiB48.0 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-6...42.6 KiB41.2 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: 200 ms 247.1 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-PLD44Z154.2 KiB83.5 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-dy...61.0 KiB46.7 KiB
assets.adobedtm.com/a62564f453ce/b1b9d7ec982b/launch-29605e749a31.min.js75.2 KiB42.1 KiB
/etc.clientlibs/twilio-com/clientlibs/clientlib-site.lc-4...38.5 KiB27.3 KiB
/etc.clientlibs/twilio-foundation/clientlibs/clientlib-si...38.0 KiB24.6 KiB
/etc.clientlibs/clientlibs/granite/jquery.lc-784289902421...35.0 KiB22.8 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
Cookie Preferences body#base-page-f083503c44 > div#teconsent > a#icon-id06884484410035588 > 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.

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: 273 ms
URLTime Spent
authy.com/273 ms
www.authy.com/0.0 ms
●Time to Interactive 1.9 s
●Layout shift culprits
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Max Potential First Input Delay 20 ms
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 1,189 KiB
●JavaScript execution time 0.3 s
●Minimizes main-thread work 0.7 s
●Page didn't prevent back/forward cache restoration
●Network Requests
●Network Round Trip Times 40 ms
●Server Backend Latencies 30 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 0 ms
○INP breakdown
○User Timing marks and measures
○Avoid long main-thread tasks
○Avoid non-composited animations
○Avoid large layout shifts
87

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div#pop-outerdiv04625716287045406 > div#pop-div2028565875331545254 > div#pop-div3033876516910514254 > div#pop-frame08669449463924391 div#pop-outerdiv04625716287045406 > div#pop-div2028565875331545254 > div#pop-div3033876516910514254 > div#pop-frame08669449463924391

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
Top Rated Authenticator App div.layout-column > div.card-icon > div.card-icon-details > h6
Required Cookies div.cookiecat > div > span.gwt-InlineHTML > h3

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-container > div.layout-column > button.cmp-media > img.cmp-media-video__thumbnail div.layout-container > div.layout-column > button.cmp-media > img.cmp-media-video__thumbnail

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
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
●`[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.
●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
●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.
96

Best Practices

General

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.authy.com/ line 2349, col 20
Error: gtag did not load within 10000 ms at https://www.authy.com/:2164:24
www.authy.com/ line 2082, col 8
ReferenceError: analytics is not defined at https://www.authy.com/:2083:9
●Uses HTTPS
●Avoids deprecated APIs
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Mitigate DOM-based XSS with Trusted Types
●Detected JavaScript libraries
●Page has valid source maps
○Redirects HTTP traffic to HTTPS
○Ensure proper origin isolation with COOP
○Mitigate clickjacking with XFO or CSP
92

SEO

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

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-container > div.layout-column > button.cmp-media > img.cmp-media-video__thumbnail div.layout-container > div.layout-column > button.cmp-media > img.cmp-media-video__thumbnail

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
●Links are crawlable
●Document has a valid `hreflang`
●Document has a valid `rel=canonical`
○robots.txt is valid

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