What “unused JavaScript” actually means If PageSpeed Insights keeps telling you to “Reduce unused JavaScript,” you are not alone. It is one of the most common warnings on WordPress sites, and also one of the most misunderstood. Most site owners read it as an instruction to delete files. In practice,…
JavaScript & CSS
-
-
Why Your Page Renders Late Even After Caching If you’ve ever run PageSpeed Insights on a WordPress site and stared at the red “Reduce render-blocking resources” warning, you’ve met the problem critical CSS solves. Your theme loads one or more big stylesheets in the <head>, and the browser refuses to…
-
If your WordPress site feels sluggish — buttons that hesitate, pages that freeze for a beat before responding — the culprit is very often JavaScript execution time. Not the size of the scripts. Not even the number of requests. It’s how long the browser’s main thread spends running your JavaScript.…
-
Minification is one of the oldest performance tricks on the web, and one of the least understood. Plenty of site owners turn it on because a speed tool told them to, watch their layout fall apart, and turn it off again — never quite sure what they did wrong. Here’s…