Lighthouse Alternative

DebugBear is an alternative to Google's free Lighthouse tool.

Continuously test the loading speed and quality of your website.

No card required. Get set up in minutes.

GTmetrix alternative page speed dashboard

”We've updated around 15,000 pages and saw some nice gains from it. "Good URLs" and their impressions have increased 3x since implementation.“

Rafayel Begoyan

Senior SEO Specialist at CoinStats

”We love DebugBear. It has proven useful time and time again. I evaluated the different competitors and DebugBear was the best overall product.“

Rafael Corral

Senior Software Engineer

Trusted By Hundreds Of Happy Customers

More detailed reporting

Analyze performance with request waterfalls

Lighthouse measures page speed metrics and suggests potential improvements. But it doesn't really show you how your website loads.
Waterfall charts show you exactly what's slowing down your website.

Custom page speed recommendations

DebugBear includes custom-built website performance recommendations that set it apart from the Lighthouse suggestions.

More reliable page speed data

Lighthouse data is simulated data

That means it sometimes hides performance issues that real users experience, or suggests a page loads more slowly than it actually does.
Learn more about whether Lighthouse data is reliable.

Collect data in a controlled test environment

DebugBear slows down the network and CPU to measure exactly how a visitor with a certain connection speed and device type would experience your website.

Go beyond lab tests with real user data

Google CrUX Data

The Chrome User Experience Report (CrUX) provides real-world performance data for your website and is used by Google as a ranking factor. With DebugBear you can easily keep track of these metrics.

Easily configure your page speed tests

Test authenticated pages

Using Basic Auth or need to fill out a login form before running your tests? DebugBear makes this easy.

20+ test locations

Lighthouse is only run in one location, whether that's a Google server or on your own computer. With DebugBear you can select from over 20 global test locations to match what your visitors experience.

Improve the new INP metric with real user monitoring

What is INP?

Interaction to Next Paint (INP) is a new Core Web Vitals metric that Google introduced in 2024. It's tricky to measure with a lab-based tool like Lighthouse, as it requires a user interaction to be measured.

Fix INP with DebugBear RUM

DebugBear's real user monitoring (RUM) functionality lets you identify slow pages, what elements users are interacting with, and what's contributing to these delays.

Continue tracking Lighthouse scores

DebugBear analyses include a Lighthouse test

Continue tracking your scores for Performance, Best Practices, Accessibility, and SEO.

Investigate Lighthouse score changes

Having continuous monitoring data means you can find out why your score has changed over time. See exactly what audit has changed and how it affects your overall score.

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