Monitor Site Speed and Core Web Vitals

Optimize search engine rankings, conversion rates, and user experience.

Front-end web performance monitoring dashboard
”We love DebugBear. It has proven useful time and time again. I evaluated the different competitors and DebugBear was the best overall product.“
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Rafael Corral
Senior Software Engineer at Medium
”DebugBear's dashboard lets us see Core Web Vitals at a glance. At the same time, we're able to examine each result in a developer-friendly way.“
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John Bacon
Product Manager at GigSalad

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.

Front-end web performance monitoring dashboard
Core Web Vitals monitoring

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.

Request waterfall and page size changes
How to set up web performance monitoring on DebugBear

Easy to set up, but packed with features

Nothing to install

Just enter the URLs of the pages you want to monitor.

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 or hide popups with a custom script.

Integrate with your workflow

Front-end monitoring alerts

Send alerts by email, in Slack, or in Microsoft Teams.

API and webhooks

Trigger page tests with the API and save test results to your own infrastructure.

Integrate with GitHub, Vercel, and Netlify

Catch regressions early by testing every pull request an CI.

Export monitoring data

Download metrics as CSV or JSON.

DebugBear Integrations
Site speed regression analysis

Catch and fix regressions

Automatic change notifications

Added a new render-blocking script? Uploaded a 5 MB image? Got a slow server response? All of these can trigger an alert.

Use our zero-config automatic alerts, or set custom thresholds.

Compare test results

Wondering why your site got slower? Use an in-depth before and after comparison to see exactly what changed.

”DebugBear delivers the best stats for before and after changes in exquisite detail. It also shows clear and easy to find data for Google's Web Vitals.
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Tony Cosentino
Owner at The WP Guy
”The reporting data is very helpful in pinpointing what causes site speed issues – immediately actionable. It's well above and beyond the info you get from Lighthouse and the performance tests through Chrome.“
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Loren McDonald
IT Director at Manncorp

Get set up in minutes.

No credit card required.
Start free 14-day trial