Singapore · Singapore Completed: Apr 16, 2026 17:59 UTCMobile 375 × 812
Desktop 1440 × 900
Score: 71 / 100
Based on 8 categories, 0 sections
Decent speed, but optimizing further could improve engagement.
Several missing protections leave your users and data exposed.
Major barriers for users with disabilities — up to 15% of your audience.
Solid SEO basics — a few optimizations could boost rankings.
Good server performance with room for optimization.
Mostly compliant — a few items need attention.
Rich content metadata — your pages look great everywhere.
Reasonable footprint with room for optimization.
The overall score is a weighted average of individual category scores. Categories with more impact on user experience and security carry more weight.
Weights reflect general web best practices. Individual needs may differ.
Content-Security-Policy header is missing
Security gaps expose your site and users to attacks, eroding trust.
HSTS header is missing
Security gaps expose your site and users to attacks, eroding trust.
No Content-Security-Policy header found
Security gaps expose your site and users to attacks, eroding trust.
1 control(s) without accessible label
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
2 image(s) missing alt attribute
Accessibility issues exclude users with disabilities — up to 15% of your potential audience.
High impact, low effort — start here.
High impact, requires investment.
Small gains, minimal effort.
Nothing in this quadrant — good news.
Low impact, high effort — do last.
Nothing in this quadrant — good news.
[](https://beavercheck.com/results/150108d8-b7e4-4d7a-a925-c374c070e997)<a href="https://beavercheck.com/results/150108d8-b7e4-4d7a-a925-c374c070e997"><img src="https://beavercheck.com/badge?url=https%3A%2F%2Fviber.com" alt="BeaverCheck Score"></a>https://beavercheck.com/badge?url=https%3A%2F%2Fviber.comThis badge auto-updates with your latest scan result.
Your site performs reasonably well, but a few targeted fixes could meaningfully improve results. Accessibility issues exclude users who rely on assistive technology — an estimated 15% of your potential audience. Addressing the critical issues below would have the most immediate impact on your user trust.
9 barrier(s) likely increasing bounce by ~31%.
Page takes 9.9s to load
+12% bounceUsers abandon at ~3s — you're 7.4s over the 2.5s threshold
Fix: Optimize render-blocking resources, preload the hero image, and compress images
Page feels frozen for 1.2s
+5% bounceClicks on the primary CTA are ignored while JavaScript runs
Fix: Break up long tasks; defer non-critical JavaScript to post-hydration
No HSTS header
+1% bounceReturning visitors are briefly exposed to downgrade attacks on first request
Fix: Set Strict-Transport-Security: max-age=31536000; includeSubDomains
No Content-Security-Policy header
+1% bounceHigher XSS blast radius — one compromised script can exfiltrate the checkout form
Fix: Ship a reporting-only CSP first, then enforce once violations are clean
1 form field(s) without a label
+2% bounceScreen readers skip unlabeled fields; autofill can't identify them; checkout abandonment spikes
Fix: Associate every input with a visible <label for="…">; add autocomplete attributes
Thin content
+3% bounceUnder 300 words — visitors bounce looking for substance, search engines rank competitors first
Fix: Add a substantive FAQ, product detail, or case-study section
5 link(s) with generic text ("click here", "read more")
+1% bounceScreen-reader users navigating by link list see no context — and search engines can't infer relevance
Fix: Rewrite with descriptive phrases that identify the destination
No skip-to-content link
+1% bounceKeyboard and screen-reader users must tab through the entire header on every page
Fix: Add a visible-on-focus <a href="#main">Skip to content</a> as the first focusable element
2 broken link(s) on the page
+3% bounceClicks land on 404s — trust drops and the session often ends
Fix: Fix or remove the broken destinations surfaced on the Content tab
Preliminary CRO audit — each barrier links to the tab with detailed analysis.
$450 investment → $5,664/month returns + USD 157,500 risk avoided
$450
4h · 5 findings
$5,664 /mo
~$67,965 / year
USD 157,500
if kept compliant
$150 — in quick wins — start here for the fastest payback
Figures combine localized regulatory fine ceilings, search/conversion value priced against local CPC, and bandwidth waste estimates. Results depend on implementation quality and audience composition. Not legal or financial advice.
4.5 developer hours at $100/hr
Based on United States rates ($100/hr)
Start here for the best return on investment
$13,125 / month at risk
~$157,504 / year if left unfixed
$157,500
+7 more
$0.37 /mo
4624.3 MB/mo × 0.080 USD/GB
Compliance figures represent the statutory maximum fine for the most severe triggered category, capped per regulation — not the sum of per-finding penalties. Based on published regulatory fine ranges. This is not legal advice.
Unique monthly visitors from your analytics
Purchases, signups, or key actions
Optional — for revenue estimation
more engaged visitors from reduced bounce
Fix 5 critical issues to capture this value
Based on Google/Deloitte research ("Milliseconds Make Millions") showing a ~7% bounce rate increase per additional second of LCP above the 2.5s "Good" threshold.
Your site's LCP: → estimated after fixes.
These are estimates based on industry research — actual results vary
Your data stays in your browser — nothing is sent to our servers
Thanks for your feedback!
We'll use a cached audit if available, or offer to scan.
Industry-standard audits powered by Google Lighthouse.
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.
3.71 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
9.87 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
1.15 s
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.019
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
4.10 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.
13.79 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Rakuten div.row > div.col-lg-4 > a > img | www.viber.com/app/themes/viber/assets/images/footer-logo-gradient.png | 44.8 KiB | 43.9 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time Spent |
|---|---|
| viber.com/ | 1.5 s |
| 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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.viber.com/app/themes/viber/dist/styles/main-41aca7d912.css | 44.1 KiB | 42.1 KiB |
| #onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} … | 19.1 KiB | 16.5 KiB |
| www.viber.com/wp/wp-includes/css/dist/block-library/style.min.css?ver=5.9.3 | 14.1 KiB | 14.1 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.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtm.js?id=GTM-KCHBLWM | 153.8 KiB | 81.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-2KEQ5G6WCC&cx=c&_slc=1 | 166.3 KiB | 68.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-B12V91DLM8&cx=c>m=4e64f0 | 161.3 KiB | 66.8 KiB |
| www.googletagmanager.com/gtag/destination?id=AW-924790284&cx=c>m=4e64f0 | 133.9 KiB | 58.6 KiB |
| s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU | 57.8 KiB | 38.4 KiB |
| cdn.cookielaw.org/scripttemplates/6.17.0/otBannerSdk.js | 83.9 KiB | 35.1 KiB |
| www.viber.com/app/mu-plugins/jquery-updater/js/jquery-3.6.0.min.js?ver=3.6.0 | 35.2 KiB | 24.2 KiB |
Consider reducing the time spent parsing, compiling, and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to reduce Javascript execution time.
Performance issues directly impact user engagement and conversion rates.
| URL | Total CPU Time | Script Evaluation | Script Parse |
|---|---|---|---|
| www.viber.com/ | 818 ms | 50 ms | 6.4 ms |
| www.googletagmanager.com/gtag/js?id=G-2KEQ5G6WCC&cx=c&_slc=1 | 435 ms | 358 ms | 70 ms |
| Unattributable | 400 ms | 55 ms | 0.0 ms |
| cdn.cookielaw.org/scripttemplates/6.17.0/otBannerSdk.js | 378 ms | 231 ms | 50 ms |
| www.googletagmanager.com/gtag/js?id=G-B12V91DLM8&cx=c>m=4e64f0 | 355 ms | 282 ms | 69 ms |
| www.googletagmanager.com/gtm.js?id=GTM-KCHBLWM | 346 ms | 272 ms | 64 ms |
| www.googletagmanager.com/gtag/destination?id=AW-924790284&cx=c>m=4e64f0 | 274 ms | 218 ms | 51 ms |
| s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU | 126 ms | 92 ms | 30 ms |
| www.viber.com/app/mu-plugins/jquery-updater/js/jquery-3.6.0.min.js?ver=3.6.0 | 78 ms | 61 ms | 13 ms |
| cdn.mxpnl.com/libs/mixpanel-2-latest.min.js | 73 ms | 55 ms | 14 ms |
Consider reducing the time spent parsing, compiling and executing JS. You may find delivering smaller JS payloads helps with this. Learn how to minimize main-thread work
Performance issues directly impact user engagement and conversion rates.
| Category | Time Spent |
|---|---|
| Script Evaluation | 1.8 s |
| Other | 591 ms |
| Style & Layout | 502 ms |
| Script Parsing & Compilation | 405 ms |
| Parse HTML & CSS | 122 ms |
| Rendering | 96 ms |
Many navigations are performed by going back to a previous page, or forwards again. The back/forward cache (bfcache) can speed up these return navigations. Learn more about the bfcache
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure 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
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 |
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.
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 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.
Performance issues directly impact user engagement and conversion rates.
| 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.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
Performance issues directly impact user engagement and conversion rates.
| Failing Elements |
|---|
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.
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.
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.
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.
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.
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.
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| Unload event listeners are deprecated and will be removed. | s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU line 10, col 10530 |
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.
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
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.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link 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.
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.
Industry-standard audits powered by Google Lighthouse. — Desktop
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.
1.70 s
Largest Contentful Paint Largest Contentful Paint — how long until the largest visible element loads. Under 2.5s is good.
2.15 s
Total Blocking Time Total Blocking Time — total time the main thread was blocked, preventing user input. Under 200ms is good.
81 ms
Cumulative Layout Shift Cumulative Layout Shift — measures visual stability. How much the page layout shifts during loading. Under 0.1 is good.
0.002
Speed Index Speed Index — how quickly content is visually displayed during load. Under 3.4s is good.
1.78 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.
3.49 s
Audit breakdown by category with detailed findings.
Remove large, duplicate JavaScript modules from bundles to reduce unnecessary bytes consumed by network activity.
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
Shipping ES5 transpiled code to modern browsers wastes bytes — every user with an evergreen browser pays for compatibility you don't need.
Most users today run browsers that natively support ES6+, async/await, optional chaining, and the rest of modern JavaScript. Transpiling to ES5 'just in case' adds 20-40% to your bundle for no benefit. Configure your build to target a modern browserslist, or ship a differential bundle pair (modern + legacy) with the module/nomodule pattern.
Source: Google web.dev / Lighthouse
3rd party code can significantly impact load performance. Reduce and defer loading of 3rd party code to prioritize your page's content.
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.
Performance issues directly impact user engagement and conversion rates.
Your first network request is the most important. Reduce its latency by avoiding redirects, ensuring a fast server response, and enabling text compression.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
Reducing the download time of images can improve the perceived load time of the page and LCP. Learn more about optimizing image size
Performance issues directly impact user engagement and conversion rates.
| URL | Resource Size | Est Savings | |
|---|---|---|---|
Rakuten div.row > div.col-lg-4 > a > img | www.viber.com/app/themes/viber/assets/images/footer-logo-gradient.png | 44.8 KiB | 44.5 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.png | 18.1 KiB | 17.7 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 KiB | 17.3 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.png | 15.9 KiB | 15.4 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.jpg | 7.0 KiB | 6.6 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.jpg | 6.1 KiB | 5.7 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.
Performance issues directly impact user engagement and conversion rates.
| URL | Time 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.
Performance issues directly impact user engagement and conversion rates.
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.
Performance issues directly impact user engagement and conversion rates.
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.viber.com/app/themes/viber/dist/styles/main-41aca7d912.css | 28.4 KiB | 26.9 KiB |
| #onetrust-banner-sdk{-ms-text-size-adjust:100%;-webkit-text-size-adjust:100%} … | 19.1 KiB | 16.1 KiB |
| www.viber.com/wp/wp-includes/css/dist/block-library/style.min.css?ver=5.9.3 | 14.1 KiB | 14.1 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.
Multi-megabyte JavaScript bundles delay every interactive feature on the page.
This is the Lighthouse audit fired when too much JS is shipped relative to what executes. The fix isn't a config flag — it requires bundle analysis (webpack-bundle-analyzer, rollup-plugin-visualizer), splitting routes into chunks, lazy-loading off-screen components, and removing unused dependencies. Fundamentally different from minification: minifying reduces byte count, this reduces what's downloaded at all.
Source: Google web.dev / Lighthouse
| URL | Transfer Size | Est Savings |
|---|---|---|
| www.googletagmanager.com/gtm.js?id=GTM-KCHBLWM | 153.8 KiB | 81.2 KiB |
| www.googletagmanager.com/gtag/js?id=G-2KEQ5G6WCC&cx=c&_slc=1 | 166.3 KiB | 69.3 KiB |
| www.googletagmanager.com/gtag/js?id=G-B12V91DLM8&cx=c>m=4e64f1h2 | 161.3 KiB | 67.6 KiB |
| www.googletagmanager.com/gtag/destination?id=AW-924790284&cx=c>m=4e64f0 | 133.9 KiB | 57.5 KiB |
| s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU | 57.8 KiB | 38.4 KiB |
| cdn.cookielaw.org/scripttemplates/6.17.0/otBannerSdk.js | 83.9 KiB | 35.1 KiB |
| www.viber.com/app/mu-plugins/jquery-updater/js/jquery-3.6.0.min.js?ver=3.6.0 | 35.2 KiB | 24.2 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
Performance issues directly impact user engagement and conversion rates.
| Failure reason | Failure 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
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.
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 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.
Performance issues directly impact user engagement and conversion rates.
| 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.
Low-contrast text is difficult or impossible for many users to read. Learn how to provide sufficient color contrast.
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.
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.
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.
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.
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.
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.
Deprecated APIs will eventually be removed from the browser. Learn more about deprecated APIs.
Performance issues directly impact user engagement and conversion rates.
| Deprecation / Warning | Source |
|---|---|
| Unload event listeners are deprecated and will be removed. | s.go-mpulse.net/boomerang/VXQ8Z-ZL693-RG83U-UAAQ9-LCYPU line 10, col 10530 |
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.
Meta descriptions may be included in search results to concisely summarize page content. Learn more about the meta description.
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.
Performance issues directly impact user engagement and conversion rates.
| Link destination | Link 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.
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.
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