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debugbear.com
DebugBear
@debugbear.com
280 followers 25 following 230 posts
Learn about page speed, measure your website performance, and monitor Core Web Vitals metrics over time.

https://www.debugbear.com/
Posts Replies Media Videos
debugbear.com
New video: learn how to debug slow page load time and investigate regressions using real user data.

www.youtube.com/watch?v=Wlyq...
How To Fix Largest Contentful Paint with Real User Monitoring
In this video, we take a look at how to improve Largest Contentful Paint by using Real User Monitoring data. Sign up for a free 14 day trial: http://www.debugbear.com/signup 0:00 - Intro 0:10 -…
www.youtube.com
November 28, 2025 at 1:15 PM
debugbear.com
Product updates for November:

💰 Measure conversion rates in RUM
📕 Improved HTML Size Analyzer
🐌 Track synthetic INP scores
✅ Free website SEO checker

www.debugbear.com/changelog/no...
November 2025 Release Notes | DebugBear
We've been working on making it easier to measure the business impact of performance, and analyze your synthetic test results.
www.debugbear.com
November 27, 2025 at 3:00 PM
debugbear.com
Did you accidentally include large images in your JSON code?

Our JSON size analyzer highlights any embedded images in addition to providing a property-based size breakdown.

www.debugbear.com/json-size-an...
November 27, 2025 at 9:45 AM
debugbear.com
What's causing the Calendly booking page to load slowly sometimes?

We've investigate in our latest blog post: www.debugbear.com/blog/calendl...
November 26, 2025 at 3:55 PM
debugbear.com
Want to get the most out of DebugBear synthetic testing?

This recent presentation at the PerformanceObserver meetup explains how to interpret the DebugBear test results and waterfall view.

performanceobserver.dev/talks/synthe...
Synthetic Web Performance Testing With DebugBear | PerformanceObserver
Lab-based web performance tools can provide in-depth reporting on what’s slowing down your website. Learn how to use the DebugBear website speed test to uncover web performance issues, and how…
performanceobserver.dev
November 25, 2025 at 3:55 PM
debugbear.com
How can real user data help you debug content shifts experienced by your visitors?

Our new video explains how to debug poor CLS scores step by step using RUM data.

www.youtube.com/watch?v=sMCJ...
How To Fix Cumulative Layout Shift with Real User Monitoring
In this video, we take a look at how to identify poor CLS experiences by using Real User Monitoring data.Sign up for a free 14 day trial: http://www.debugbear.com/signup 0:00 - Intro 0:18 -…
www.youtube.com
November 21, 2025 at 3:55 PM
Reposted by DebugBear
henrihelvetica.bsky.social
✨ SPDY STREAM 018 ✨ TODAY, we have @mattzeunert.com from @debugbear.com ! He recently penned an piece for @smashingmagazine.com about the importance of metric monitoring + effectively collecting #CoreWebVitals. We're chatting live later today
📆 TODAY!
⏰ 1pm EST, 7pm CET
🔗 youtube.com/live/VfPX9G5...
SPDY stream. Performance people and projects Thursday, November 20 1 PM Eastern standard time online. Image of two avatars. One with a British flag the other way it Canadian flag. Image of a electric racing car.
November 20, 2025 at 4:07 PM
debugbear.com
Our free HTML size analyzer can tell you what's taking up space in your HTML!

Identify embedded images, fonts, or JavaScript hydration state.

www.debugbear.com/html-size-an...
November 20, 2025 at 12:30 PM
debugbear.com
Small improvement to our request waterfall: view the request count and page weight for your selected requests.

For example, you can quickly see how many CSS files your website is loading, or how much data transfer is due to PNG files.
November 19, 2025 at 3:55 PM
Reposted by DebugBear
smashingmagazine.com
There are many tips for improving your website's performance. But even if you follow all the advice, can you maintain an optimized site? And are you targeting the right pages?

↬ Matt Zeunert on effective strategies: www.smashingmagazine.com/2025/11/effe...

(Article supported by @debugbear.com 💖)
November 18, 2025 at 7:00 PM
debugbear.com
You can now measure INP scores as part of DebugBear user flows and track how your scores change over time.
November 18, 2025 at 3:55 PM
debugbear.com
DebugBear real user monitoring now shows a Cumulative Layout Shift (CLS) visualization for each page view with a layout shift.
November 17, 2025 at 3:55 PM
debugbear.com
WebPageTest is a great tool for web performance debugging.

Learn how to use it to test your website and identify optimizations based on the request waterfall.

www.youtube.com/watch?v=vdpq...
How to analyze website performance with WebPageTest
Learn how to check your website speed with the free WebPageTest tool https://www.catchpoint.com/webpagetest Or try the DebugBear speed test as an alternative…
www.youtube.com
November 14, 2025 at 3:55 PM
debugbear.com
Need help with a tricky web performance issue, or not sure where to start?

We've got a list of recommended consultants and agencies you can work with!

www.debugbear.com/web-performa...
November 13, 2025 at 3:55 PM
debugbear.com
Did you know Google's CrUX dataset includes breakdown data for the Largest Contentful Paint metric?

You can find it in the Web Vitals tab of the free DebugBear page speed test www.debugbear.com/test/website...
November 13, 2025 at 12:30 PM
debugbear.com
Chrome's JavaScript debugger lets you pause execution to inspect what's going on in your app.

Learn how to use it in this article, and discover how to pause on DOM changes, function calls, or property assignments!

www.debugbear.com/blog/chrome-...
How To Debug JavaScript In Chrome DevTools | DebugBear
Learn how to set pause execution, inspect application state, and discover advanced breakpoint functionality.
www.debugbear.com
November 12, 2025 at 3:55 PM
debugbear.com
Want to get started with real user monitoring?

Our new video explains the benefits of RUM data and how to set it up on your website www.youtube.com/watch?v=RMmO...
How To Set Up Real User Monitoring (RUM) on Your Website
In this video, we will take a look at how to set up Real User Monitoring for your website. Sign up for a free 14 day trial: https://debugbear.com/signup 0:00 - Intro 0:17 - What is Real User…
www.youtube.com
November 11, 2025 at 3:55 PM
debugbear.com
Chrome DevTools provides a lot of information on how you can improve your Largest Contentful Paint score.

We've just updated our LCP optimization article with extra detail!

www.debugbear.com/docs/metrics...
November 10, 2025 at 3:55 PM
Reposted by DebugBear
nucliweb.net
I use several tools to debug and monitor web performance. One of them is @debugbear.com, which helps me track and alert on performance issues — like the one shown here.

If you care about performance, I recommend giving @debugbear.com a try.

#WebPerf #PerfTools #Performance #monitoring
Screenshot of an email alert from DebugBear titled “Change alert for [redacted]”. The email, addressed to Joan Leon, reports a performance issue with the message “Total Blocking Time: 150 ms → 2,010 ms,” highlighted in a red rectangle. The email includes links to “View Details,” “Unsubscribe from notifications for this project,” and “Configure alert criteria.”
November 6, 2025 at 10:08 AM
debugbear.com
Chrome Canary now supports network throttling for individual request URLs!

Learn how to try out this new feature: www.debugbear.com/blog/chrome-...
How To Throttle Specific Requests In Chrome DevTools | DebugBear
Learn how to delay individual requests in Chrome DevTools. Debug performance issues or bugs that happen when specific resources are delayed.
www.debugbear.com
November 5, 2025 at 3:55 PM
debugbear.com
Server response time has a big impact on overall page speed. No other page content can load until the first HTML response byte has arrived in the browser.

We recently updated our guide on how to optimize Time to First Byte! www.debugbear.com/docs/metrics...
November 4, 2025 at 3:55 PM
debugbear.com
We've updated our comparison UI for lab test results.

Continuously test your website and easily investigate regressions: www.debugbear.com/synthetic-we...
November 3, 2025 at 3:55 PM
debugbear.com
Want to share a single DebugBear test result with other team members or clients?

You can now generate a unique URL for specific test results or for comparisons between two tests!

www.debugbear.com/docs/teams#s...
October 31, 2025 at 3:55 PM
debugbear.com
Embedding all essential CSS styles in the document can speed up your website, but it also comes with some challenges.

Learn more about the role of critical CSS in page speed: www.debugbear.com/blog/critica...
Inlining Critical CSS: Does It Make Your Website Faster? | DebugBear
Learn what critical CSS is, how to inline it to improve page load performance, and understand the trade-offs before implementing it on your website.
www.debugbear.com
October 30, 2025 at 3:55 PM
debugbear.com
How can you optimize page load time?

In this video we explain how to analyze page load speed on your website and then take a detailed look at how the ClickUp homepage could be optimized.

www.youtube.com/watch?v=9i7g...
How to check and improve page load time for your website
Page load time has a big impact on visitor experience. Learn how to measure your page speed and how to identify optimizations. 00:00 Introduction 00:09 How to measure page load time 01:20 Analyzing…
www.youtube.com
October 29, 2025 at 3:55 PM