Technote
Caching, Redis, Core Web Vitals, image optimisation and query tuning — everything that makes WordPress fast, grounded in measurements rather than folklore.
44 articles· Performance optimization
Performance optimization Practical
The biggest advantage of a public font CDN — a cache already warmed by another site — disappeared when browsers partitioned their caches. What remains is a question…
Performance optimization Practical
Images are usually the heaviest part of a page, and shrinking them costs almost nothing if you do it in order. The CDN belongs at the end, not…
Performance optimization Practical
One upload produces several files. Any of them never used on screen clutters both your disk and your srcset at the same time.
Performance optimization Practical
Opportunity arrives unannounced. A few things done in advance are what stand between a crowd and a blank error page.
Performance optimization Intro
Upload a camera original and the page still looks fine, which is why the problem surfaces late. Knowing what WordPress does behind the scenes gives you a rule.
Performance optimization Intro
Caching is not one switch. It is several layers with different jobs, and stacking them blindly is how you end up with a page that refuses to update.
Performance optimization Intro
Photographs and flat graphics compress on completely different principles. Choose accordingly and the file shrinks while the picture on screen does not change.
Performance optimization Intro
A slowdown feels sudden, but the list of causes is short. Before you pay for a bigger server, there are three things to check in order.