Matt Zeunert

Hi everyone, Our free site speed tool is based on Lighthouse by Google, but adds a ton of custom functionality and debug data: 🌊 Detailed request waterfall showing blocking requests, large images, ... 🔍 Doesn't rely on simulated data like PageSpeed Insights and other Lighthouse-based tools 📹 Rendering filmstrip/video view to see how your website renders Click on each metric to see how to...

Hey there! 👋 Lighthouse and PageSpeed Insights use something called simulated throttling to run tests – that makes it very fast to generate metrics for a large number of different network configurations. This tool shows how latency and bandwidth impact site speed, as well as surfacing some of the Lighthouse internals like observed metrics and optimistic/pessimistic estimates.

Hey there! 👋 Sometimes when looking into why a website is slow I find that the size of the HTML document is half a megabyte or more. There's a few reasons for this, often JSON hydration state from a single-page app or inline images that are embedded as data URLs. Other times there's just lots of duplication, for example a page I saw specified 180 image URLs per visible images (to make it...

Hey everyone! 👋 I originally launched DebugBear in 2018, and honestly it was pretty basic at the time 🙂 Since then I've grown to 20+ customers and added lots of new functionality aimed at developers: - API builds + GitHub integration - Lighthouse reports - Automatic regression alerts - Monitoring behind logins or search forms Let me know if you've got any feedback on the product. What...

Hi everybody! The idea behind DebugBear is to watch pages as they load and then use that data to help developers understand what's going on. That can mean finding out when a new third party script was added, or when a new error message started appearing in the console. One feature I'm very happy with is the JS bundle monitoring: you can see a graph for each bundle and it takes into account...