mattzeunert.com
@mattzeunert.com
Working on web performance optimization, founder of @debugbear.com
Made some design tweaks to our HTML size analyzer tool!

www.debugbear.com/html-size-an...
November 10, 2025 at 11:59 AM
Responsive images are a web performance best practice... but embedding all versions as Base64 in the HTML isn't 🙃

Test your own website here: www.debugbear.com/test/website...
November 8, 2025 at 4:40 PM
The biggest factor slowing down the BitBucket homepage: massive CSS selectors!

Test your own CSS files here with our free tool: www.debugbear.com/css-size-ana...
November 7, 2025 at 12:57 PM
⏳ Why would Chrome decide against loading an image even though it can see it in the HTML?

Most browsers have a concept of "tight mode" where the number of non-critical requests is limited in order to give priority to render-blocking resources.

More: www.smashingmagazine.com/2025/01/tigh...
October 20, 2025 at 3:45 PM
Actual printed detail if it helps! (The dark blue lines on the lighter blue are intentional.)
October 2, 2025 at 7:42 AM
I am not a calendar or printing expert! But I was happy with the quality. Ordered just a single one at first to check.
October 2, 2025 at 7:38 AM
Love people at #perfnow sharing performance tools they wish existed.

Great ideas for free @debugbear.com tools we could build!
November 15, 2024 at 11:45 AM