Aaron T. Grogg

I reduced this PLP’s LCP by nearly 3s just by replacing the JS animation with CSS animation (and removing the CSS that initially hid the components until the JS was ready): Your browser does not support the HTML video player.

SRE (Site Reliability Engineering) roles have been exploding for several months now.

A recent audit (client to remain nameless), reminded me of a pattern that I have been seeing a LOT lately, which looks something like this: <div class="image-wrapper"> <img class="image--desktop" src="/image-desktop.jpg" width="1200" height="40…

Today I saw a LinkedIn post from Matt Zeunert stating that DebugBear had “improved support for server timing header”.

WebMCP has the potential to fundamentally change how websites are structured and how their content is consumed.

Looks like I will be presenting an all-day Web Performance MasterClass at the WeAreDevelopers World Congress in San Jose, CA from September 23-25, 2026.

The latest in a series of posts that investigate problematic performance KPIs on live commercial websites.

Early Hints, Resource Hints (comprised of dns-prefetch, preconnect, preload and prefetch links), and Speculation Rules all perform similar tasks: they try to fetch things sooner than necessary, so the user doesn’t have to wait for them when they are actua…

Bit of a stream-of-consciousness rant, and of course there is no absolutely right or absolutely wrong answer.

Part of an investigative series that looks into problematic performance KPIs on live commercials websites.