Web Vitals

Web Vitals

Measure metrics for a healthy site

What is Web Vitals?
"Web Vitals" is a Chrome extension that gauges real-time user experience metrics critical for a healthy website. It assesses Core Web Vitals to provide feedback on loading, interactivity, and layout stability. Features include an Ambient Badge indicating metric success, a detailed popup for metric drill-down, and an overlay for continuous on-page metric display. It aligns with Chrome's measurement standards and integrates real-user data to benchmark against other users' experiences.
Stats
Users: 100,000+
Version: 1.4.2 (Last updated: 2024-03-10)
Creation date: 2020-06-30
Risk impact: High risk impact
Risk likelihood: Very low risk likelihood
Manifest version: 3
Permissions:
  • tabs
  • storage
  • activeTab
  • scripting
Host permissions:
  • *://*/*
Size: 406.53K
URLs: Website
Stats date:

Other platforms

Not available on Firefox
Not available on Edge
Want to check extension ranking and stats more quickly for other Chrome extensions? Install Chrome-Stats extension to view Chrome-Stats data as you browse the Chrome Web Store.
Chrome-Stats extension
Summary

Web Vitals are quality signals key to delivering great UX on the web (https://web.dev/vitals). This extension measures the Core Web Vitals, providing instant feedback on loading, interactivity and layout shift metrics. It is consistent with how these metrics are measured by Chrome and reported to other Google tools (e.g. Chrome User Experience Report, Page Speed Insights, Search Console).

The extension supports all of the Core Web Vitals and captures:

Largest Contentful Paint Cumulative Layout Shift Interaction to Next Paint

It also supports the diagnostic metrics:

Time to First Byte First Contentful Paint

And finally, it temporarily supports the following deprecated metrics:

See more
User reviews
User reviews summary
These summaries are automatically generated weekly using AI based on recent user reviews. Chrome Web Store does not verify user reviews, so some user reviews may be inaccurate, spammy, or outdated.
Pros
  • Measures web vitals like CLS and LCP effectively for some users
  • Useful extension with good attention to detail for color-blind users
  • One reviewer appreciated the explanation of metrics like INP
Cons
  • Doesn't work or shows 'Web Vitals are unavailable' for many users
  • Inconsistent results compared to other tools like Google Page Insights
  • No information or direction on what causes CLS issues is provided
Most mentioned
  • Issues with accurately measuring CLS (Cumulative Layout Shift)
  • Comparison with Google Page Insights and inconsistent results
  • The 'Waiting for input...' message for INP (Interaction to Next Paint) metric
Recent reviews
by Tina Perisic Tina Perisic, 2024-03-22

by Christophe Adam Christophe Adam, 2024-03-01

by Jack Hanford Jack Hanford, 2023-12-06
View all user reviews
Safety
Risk impact

Web Vitals is risky to use as it requires a number of sensitive permissions that can potentially harm your browser and steal your data. Exercise caution when installing this extension. Review carefully before installing. We recommend that you only install Web Vitals if you trust the publisher.

Risk likelihood

Web Vitals has earned a good reputation and can be trusted.

Upgrade to see risk analysis details
Screenshots
Promo images
Web Vitals small promo image
Small promo image
Similar extensions

Here are some Chrome extensions that are similar to Web Vitals: