Topic guide
A faster website is a friendlier website.
Learn what makes websites slow, how Core Web Vitals work, and which performance fixes are worth doing first.
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Common questions
What usually slows a website down?
Large images, too much JavaScript, slow servers, render-blocking fonts, and heavy third-party scripts are common causes.
Should I chase a perfect score?
A perfect lab score is less important than a fast, stable experience for real visitors on real devices.
Which performance fixes should come first?
Start with images, server response, critical templates, and third-party scripts before polishing tiny optimizations.