Web Vitals for Developers
Assess key metrics like LCP, INP, and CLS in a weighted performance score reflecting real user impact. Identify pages most ripe with opportunities to improve the overall performance score.
Drill into poor-loading pages with span waterfalls that highlight your most expensive operations. Long task spans can highlight clear performance bottlenecks.
With profiling, find the functions causing your slow page loads. Then use the flame graph context to easily implement a fix in your code.
Getting started is simple
We support every technology (except the ones we don't).
Get started with a few lines of code.
Create a free Sentry account
Create a JavaScript project and note your DSN
Grab the Sentry JavaScript SDK
<script src="https://browser.sentry-cdn.com/7.112.2/bundle.min.js"></script>
- Configure your DSN
Sentry.init({ dsn: 'https://<key>@sentry.io/<project>' });
That's it. Be sure to check out our documentation to ensure you have the latest instructions.
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Fix It
With Web Vitals, solve the issues impacting your users’ experience on their web browser.