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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.

81

Performance

Insights

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Polyfills and transforms enable older browsers to use new JavaScript features. However, many aren't necessary for modern browsers. Consider modifying your JavaScript build process to not transpile Baseline features, unless you know you must support older browsers. Learn why most sites can deploy ES6+ code without transpiling

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

RequestCache TTLTransfer Size
cdn.cookielaw.org/scripttemplates/6.17.0/otBannerSdk.js86400.0 s84.2 KiB
cdn.mxpnl.com/libs/mixpanel-2-latest.min.js600.0 s31.7 KiB
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Regular.woff278660.0 s63.0 KiB
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Light.woff278686.0 s63.0 KiB
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Bold.woff278686.0 s62.4 KiB
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Thin.woff278686.0 s61.7 KiB
/app/themes/viber/assets/fonts/font-awesome/webfonts/fa-b...78644.0 s53.5 KiB
www.viber.com/app/themes/viber/assets/images/footer-logo-gradient.png78641.0 s45.1 KiB
www.viber.com/app/themes/viber/dist/styles/main-41aca7d912.css78639.0 s44.4 KiB
/app/themes/viber/assets/fonts/font-awesome/webfonts/fa-s...78640.0 s38.2 KiB
www.google-analytics.com/analytics.js7200.0 s20.9 KiB
www.viber.com/app/mu-plugins/jquery-updater/js/jquery-3.6.0.min.js?ver=3.6.078643.0 s35.6 KiB
www.viber.com/app/uploads/Send-money-home-with-Viber-Pay-150x150.png78644.0 s18.4 KiB
/app/uploads/Why-Viber-Pay-is-the-best-way-to-send-money-...78643.0 s18.0 KiB
www.viber.com/app/uploads/Send-money-without-bank-details-150x150.png78644.0 s16.2 KiB
www.viber.com/wp/wp-includes/css/dist/block-library/style.min.css?ver=5.9.378639.0 s14.5 KiB
s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU604800.0 s58.0 KiB
www.viber.com/app/themes/viber/assets/fonts/font-awesome/css/fontawesome-all.css78639.0 s9.2 KiB
cdn.cookielaw.org/scripttemplates/otSDKStub.js86400.0 s9.1 KiB
www.viber.com/app/uploads/Blog_1280x628-Main-Image-150x150.jpg78643.0 s7.3 KiB
www.viber.com/app/uploads/1280x628-Main-Image-1-150x150.jpg78644.0 s6.4 KiB
/app/mu-plugins/jquery-updater/js/jquery-migrate-3.4.0.mi...78643.0 s5.5 KiB
s-cdn.rmp.rakuten.com/js/sync.min.js3600.0 s2.4 KiB
cdn.cookielaw.org/consent/bbd6f43a-699b-4d6e-b411-627e0bd9c887/OtAutoBlock.js86400.0 s3.0 KiB
www.viber.com/app/themes/viber/dist/scripts/main-faf9db4319.js78640.0 s2.7 KiB
www.viber.com/app/themes/viber/assets/images/logov2.svg78640.0 s2.1 KiB
www.viber.com/app/themes/viber/assets/images/close-button.png78640.0 s1.8 KiB
www.viber.com/app/themes/viber/assets/images/search.png78644.0 s1.8 KiB
www.viber.com/app/themes/viber/assets/scripts/object-fit-videos.min.js78639.0 s1.5 KiB
www.viber.com/app/themes/viber/assets/scripts/js.cookie.min.js78639.0 s1.2 KiB
/app/plugins/stop-user-enumeration/frontend/js/frontend.j...78643.0 s611 B
/a?id=AW-924790284&v=3&t=t&pid=2064808565&gtm=45be64f0za2...0.0 ms11 B
/a?id=AW-924790284&v=3&t=t&pid=2064808565&gtm=45be64f0za2...0.0 ms11 B
/a?id=AW-924790284&v=3&t=t&pid=2064808565&gtm=45be64f0za2...0.0 ms11 B
/a?id=AW-924790284&v=3&t=t&pid=2064808565&gtm=45be64f0za2...0.0 ms11 B
/a?id=AW-924790284&v=3&t=t&pid=2064808565&gtm=45be64f0za2...0.0 ms11 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
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Bold.woff235 ms
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Regular.woff230 ms
/app/themes/viber/assets/fonts/font-awesome/webfonts/fa-b...20 ms
/app/themes/viber/assets/fonts/font-awesome/webfonts/fa-s...15 ms
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Thin.woff210 ms
www.viber.com/app/themes/viber/fonts/roboto/Roboto-Light.woff25.0 ms

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
value: no origins were preconnected
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
cdn.cookielaw.org/consent/bbd6f43a-699b-4d6e-b411-627e0bd9c887/OtAutoBlock.js3.0 KiB218 ms
cdn.cookielaw.org/scripttemplates/otSDKStub.js9.1 KiB
www.viber.com/app/mu-plugins/jquery-updater/js/jquery-3.6.0.min.js?ver=3.6.035.6 KiB
/app/plugins/stop-user-enumeration/frontend/js/frontend.j...611 B
www.viber.com/app/themes/viber/assets/scripts/object-fit-videos.min.js1.5 KiB
www.viber.com/app/themes/viber/assets/scripts/js.cookie.min.js1.2 KiB
fonts.googleapis.com/css?family=Roboto:100,300,400,500,700,900&subset=cyrillic2.3 KiB206 ms
www.viber.com/app/themes/viber/dist/styles/main-41aca7d912.css44.4 KiB123 ms
/app/mu-plugins/jquery-updater/js/jquery-migrate-3.4.0.mi...5.5 KiB
www.viber.com/app/themes/viber/assets/fonts/font-awesome/css/fontawesome-all.css9.2 KiB
www.viber.com/wp/wp-includes/css/dist/block-library/style.min.css?ver=5.9.314.5 KiB

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
Rakuten div.row > div.col-lg-4 > a > img
www.viber.com/app/themes/viber/assets/images/footer-logo-gradient.png44.8 KiB44.5 KiB
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/Send-money-home-with-Viber-Pay-150x150.png18.1 KiB17.7 KiB
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
/app/uploads/Why-Viber-Pay-is-the-best-way-to-send-money-...17.7 KiB17.3 KiB
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/Send-money-without-bank-details-150x150.png15.9 KiB15.4 KiB
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/Blog_1280x628-Main-Image-150x150.jpg7.0 KiB6.6 KiB
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/1280x628-Main-Image-1-150x150.jpg6.1 KiB5.7 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.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 910 ms
URLTime Spent
viber.com/910 ms
www.viber.com/0.0 ms

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

TTI

Diagnostics

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Estimated savings: 0.0 ms 57.1 KiB
URLTransfer SizeEst Savings
www.viber.com/app/themes/viber/dist/styles/main-41aca7d912.css28.4 KiB26.9 KiB
#onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} …19.1 KiB16.1 KiB
www.viber.com/wp/wp-includes/css/dist/block-library/style.min.css?ver=5.9.314.1 KiB14.1 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: 40 ms 373.3 KiB
URLTransfer SizeEst Savings
www.googletagmanager.com/gtm.js?id=GTM-KCHBLWM153.8 KiB81.2 KiB
www.googletagmanager.com/gtag/js?id=G-2KEQ5G6WCC&cx=c&_slc=1166.3 KiB69.3 KiB
www.googletagmanager.com/gtag/js?id=G-B12V91DLM8&cx=c&gtm=4e64f1h2161.3 KiB67.6 KiB
www.googletagmanager.com/gtag/destination?id=AW-924790284&cx=c&gtm=4e64f0133.9 KiB57.5 KiB
s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU57.8 KiB38.4 KiB
cdn.cookielaw.org/scripttemplates/6.17.0/otBannerSdk.js83.9 KiB35.1 KiB
www.viber.com/app/mu-plugins/jquery-updater/js/jquery-3.6.0.min.js?ver=3.6.035.2 KiB24.2 KiB

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 a sub frame.Actionable

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
Rakuten div.row > div.col-lg-4 > a > img
www.viber.com/app/themes/viber/assets/images/footer-logo-gradient.png
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/Blog_1280x628-Main-Image-150x150.jpg
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/1280x628-Main-Image-1-150x150.jpg
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
/app/uploads/Why-Viber-Pay-is-the-best-way-to-send-money-...
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/Send-money-home-with-Viber-Pay-150x150.png
div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img div.widget-media > div.popular-media-wrapper > div.popular-media-wrapper-inner > img
www.viber.com/app/uploads/Send-money-without-bank-details-150x150.png
viber logo div.container-fluid > div.brand-wrap > a.brand > img
www.viber.com/app/themes/viber/assets/images/logov2.svg
footer.content-info > div.barcelona > a > img.optanon-category-C0003 footer.content-info > div.barcelona > a > img.optanon-category-C0003
www.viber.com/

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

●Max Potential First Input Delay 110 ms
●Layout shift culprits
●Optimize DOM size
●Forced reflow
●LCP breakdown
●Modern HTTP
●Optimize viewport for mobile
●Minify CSS
●Minify JavaScript
●Avoids enormous network payloads Total size was 1,505 KiB
●User Timing marks and measures 15 user timings
●JavaScript execution time 0.4 s
●Minimizes main-thread work 0.9 s
●Avoid long main-thread tasks 4 long tasks found
●Avoid non-composited animations 2 animated elements found
●Network Requests
●Network Round Trip Times 240 ms
●Server Backend Latencies 250 ms
●Tasks
●Diagnostics
●Metrics
●Screenshot Thumbnails
●Final Screenshot
●Script Treemap Data
●Resources Summary
●Initial server response time was short Root document took 0 ms
●Avoid large layout shifts 9 layout shifts found
○INP breakdown
○LCP request discovery
83

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

ARIA dialog elements without accessible names may prevent screen readers users from discerning the purpose of these elements. Learn how to make ARIA dialog elements more accessible.

Why this matters

Informational: a Permissions-Policy directive showing feature -> allowed origins.

Source: MDN Permissions-Policy

Failing Elements
This website uses cookies to enhance user experience and to analyze performance… body.blog > div#onetrust-consent-sdk > div#onetrust-banner-sdk > 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.

Contrast

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
Download div.menu-main-container > ul#menu-main > li#menu-item-10072 > a#menu-link-10072
Features div.menu-main-container > ul#menu-main > li#menu-item-12345 > a#menu-link-12345
Communities div.menu-main-container > ul#menu-main > li#menu-item-23245 > a#menu-link-23245
Security div.menu-main-container > ul#menu-main > li#menu-item-13686 > a#menu-link-13686
Viber Out div.menu-main-container > ul#menu-main > li#menu-item-10073 > a#menu-link-10073
Blog div.menu-main-container > ul#menu-main > li#menu-item-14348 > a#menu-link-14348
News section.widget > a.popular-media > div.popular-media-body > div.popular-widget-category
News section.widget > a.popular-media > div.popular-media-body > div.popular-widget-category
Viber Pay section.widget > a.popular-media > div.popular-media-body > div.popular-widget-category
Viber Pay section.widget > a.popular-media > div.popular-media-body > div.popular-widget-category
Viber Pay section.widget > a.popular-media > div.popular-media-body > div.popular-widget-category
Advertising aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
Brand Partnerships aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
channels aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
chat extensions aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
chats aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
coffee aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
communities aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
community aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
create stickers aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
data aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
digital advertising aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
digital marketing aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
Digital Wallet aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
express yourself aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
FC Barcelona aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
free calls aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
gdpr aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
group chats aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
halloween aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
happy birthday aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
happy holidays aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
instant video messages aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
international calls aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
legcat aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
love aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
manage community aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
marketing aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
messaging aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
Messaging Apps aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
polls aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
privacy aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
safe aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
secret chats aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
security aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
sticker market aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
Stickers aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
unlimited calls aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
viber aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
viber communities aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
viber features aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
viber out aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
viber pay aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
viber stickers aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
violet aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
wheel of fortune aside.sidebar > section.widget > div.tagcloud > a.tag-cloud-link
VIBER div.container > div.row > section.widget > h3
COMPANY div.container > div.row > section.widget > h3
DOWNLOAD div.container > div.row > section.widget > h3
Rakuten Viki div.container > div.row > div.col-lg-8 > a
Rakuten Kobo div.container > div.row > div.col-lg-8 > a
Rakuten Travel div.container > div.row > div.col-lg-8 > a
Rakuten Marketing div.container > div.row > div.col-lg-8 > a
Rakuten Insight div.container > div.row > div.col-lg-8 > a
Rakuten TV div.container > div.row > div.col-lg-8 > a
About Rakuten div.container > div.row > div.col-lg-8 > a
Cookies Settings body.blog > footer.content-info > button#ot-sdk-btn
Cookies Settings div.ot-sdk-row > div#onetrust-button-group-parent > div#onetrust-button-group > button#onetrust-pc-btn-handler
Accept All Cookies div.ot-sdk-row > div#onetrust-button-group-parent > div#onetrust-button-group > button#onetrust-accept-btn-handler

These are opportunities to improve the legibility of your content.

Navigation

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
POPULAR aside.sidebar > section.widget > div.widget-heading > 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
footer.content-info > div.barcelona > a > img.optanon-category-C0003 footer.content-info > div.barcelona > a > img.optanon-category-C0003

Link text (and alternate text for images, when used as links) that is discernible, unique, and focusable improves the navigation experience for screen reader users. Learn how to make links accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Failing Elements
div.row > section.col-6 > div.social-links-footer > a.s-link div.row > section.col-6 > div.social-links-footer > a.s-link
div.row > section.col-6 > div.social-links-footer > a.s-link div.row > section.col-6 > div.social-links-footer > a.s-link
div.row > section.col-6 > div.social-links-footer > a.s-link div.row > section.col-6 > div.social-links-footer > a.s-link
div.row > section.col-6 > div.social-links-footer > a.s-link div.row > section.col-6 > div.social-links-footer > a.s-link
body.blog > footer.content-info > div.barcelona > a body.blog > footer.content-info > div.barcelona > 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.

○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
●Form elements have associated labels
●`[user-scalable="no"]` is not used in the `<meta name="viewport">` element and the `[maximum-scale]` attribute is not less than 5.
●ARIA attributes are used as specified for the element's role
●`[aria-hidden="true"]` elements do not contain focusable descendents
●Elements use only permitted ARIA attributes
●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.
●Document has a main landmark.
●Deprecated ARIA roles were not used
●Elements with visible text labels have matching accessible names.
○`[accesskey]` values are unique
○`button`, `link`, and `menuitem` elements have accessible names
○ARIA input fields have accessible names
○ARIA `meter` elements have accessible names
○ARIA `progressbar` elements have accessible names
○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
○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
○The document does not use `<meta http-equiv="refresh">`
○`<object>` elements have alternate text
○Select elements have associated label elements.
○Skip links are focusable.
○No element has a `[tabindex]` value greater than 0
○Cells in a `<table>` element that use the `[headers]` attribute refer to table cells within the same table.
○`<th>` elements and elements with `[role="columnheader"/"rowheader"]` have data cells they describe.
○`[lang]` attributes have a valid value
○`<video>` elements contain a `<track>` element with `[kind="captions"]`
○Tables have different content in the summary attribute and `<caption>`.
○All heading elements contain content.
○Uses ARIA roles only on compatible elements
○Image elements do not have `[alt]` attributes that are redundant text.
○Identical links have the same purpose.
○Tables use `<caption>` instead of cells with the `[colspan]` attribute to indicate a caption.
○`<td>` elements in a large `<table>` have one or more table headers.
81

Best Practices

General

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

Why this matters

Performance issues directly impact user engagement and conversion rates.

Deprecation / WarningSource
Unload event listeners are deprecated and will be removed.
s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU line 10, col 10530
●Uses HTTPS
●Avoids third-party cookies
●Allows users to paste into input fields
●Avoids requesting the geolocation permission on page load
●Avoids requesting the notification permission on page load
●Displays images with correct aspect ratio
●Serves images with appropriate resolution
●Page has the HTML doctype
●Properly defines charset
●No browser errors logged to the console
●No issues in the `Issues` panel in Chrome Devtools
●Ensure CSP is effective against XSS attacks
●Use a strong HSTS policy
●Ensure proper origin isolation with COOP
●Mitigate 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
75

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

Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Descriptive link text helps search engines understand your content. Learn how to make links more accessible.

Why this matters

Performance issues directly impact user engagement and conversion rates.

Link destinationLink Text
www.viber.com/en/terms/cookies-and-tracking/More information

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
footer.content-info > div.barcelona > a > img.optanon-category-C0003 footer.content-info > div.barcelona > a > img.optanon-category-C0003

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
●Page has successful HTTP status code
●Links are crawlable
●robots.txt is valid
●Document has a valid `hreflang`
○Document has a valid `rel=canonical`

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