Monitor Site Speed and Core Web Vitals
Optimize search engine rankings, conversion rates, and user experience.
Be faster than your competition
Modern user experience metrics
Track user-centric performance metrics like Largest Contentful Paint and Cumulative Layout Shift.
Monitor Lighthouse scores
Lighthouse is the tool that powers Google's PageSpeed Insights service. Track scores for performance, accessibility, and SEO.
Benchmark against the competition
Compare trends across different websites, and optimize your site performance.
Monitor Core Web Vitals
Improve Google rankings
Google is now using web vitals as a ranking factor. Optimizing site experience is an important part of technical SEO.
Lab and real user metrics
In addition to the lab-based Lighthouse tests, DebugBear also tracks the data Google collects from real Chrome users.
Increase developer productivity
Reporting that goes beyond metrics
Your page load times just went up, but why? DebugBear shows an in-depth comparison between any two test results, so you can see what changed.
Efficiently debug front-end performance problems
Use detailed debug data on rendering, CPU tasks, and network requests to identify what's slowing down your site.
Easy to set up, but packed with features
Nothing to install
Just enter the URLs of the pages you want to monitor and we'll do the rest.
Share results with your team
Invite as many users as you need, or give everyone access with a shareable URL.
Configure device type and location
Monitor mobile and desktop performance with custom device and network speeds. Run tests from 10 global locations.
Advanced features
Access pages behind authentication, set up performance budgets, or hide popups with a custom script.
Integrate with your workflow
API access
Run tests with the API or configure monitored pages.
Integrate with GitHub, Vercel, and Netlify
Catch regressions early by testing each pull request with DebugBear. Report results on GitHub or your CI system.
Export monitoring data
Download metrics as CSV or JSON. Export data with the API or receive every test result through webhooks.
Catch problems with zero-config alerts
Automatic change notifications
Did you JavaScript bundle get bigger? Got a slow server response? Added a new image without an alt tag? Using a deprecated API? All of these can trigger an alert.
Zero-config, but configurable
Significant changes are detected automatically, without the need to set up thresholds. But if you need to you can fully customize the alerts.
Get front-end monitoring alerts where you need them
Send alerts by email, in Slack, or in Microsoft Teams.