HTTP/3 explained

Visitors notice delays above a few hundred milliseconds, even when they cannot say why. Images are usually the heaviest part of a page, so resize them before anything else. Plugins that load scripts on every page cost more than they look. A fast site starts with the server, but it does not end there. A good theme ships little CSS and almost no JavaScript.

A good theme ships little CSS and almost no JavaScript. Visitors notice delays above a few hundred milliseconds, even when they cannot say why. A fast site starts with the server, but it does not end there. Search engines reward pages that load quickly on slow phones. Measure first, then change one thing at a time, then measure again.

Caching the full HTML page turns a dynamic site into something close to a static one. Every request that skips PHP saves tens of milliseconds and a slice of CPU. Visitors notice delays above a few hundred milliseconds, even when they cannot say why. A good theme ships little CSS and almost no JavaScript. Search engines reward pages that load quickly on slow phones.

Search engines reward pages that load quickly on slow phones. Images are usually the heaviest part of a page, so resize them before anything else. Caching the full HTML page turns a dynamic site into something close to a static one. A good theme ships little CSS and almost no JavaScript. Plugins that load scripts on every page cost more than they look.

What to do next

The database is rarely the problem on a small site, until it suddenly is. Measure first, then change one thing at a time, then measure again. Search engines reward pages that load quickly on slow phones. A fast site starts with the server, but it does not end there. Caching the full HTML page turns a dynamic site into something close to a static one.

Measure first, then change one thing at a time, then measure again. Search engines reward pages that load quickly on slow phones. Plugins that load scripts on every page cost more than they look. Visitors notice delays above a few hundred milliseconds, even when they cannot say why. The database is rarely the problem on a small site, until it suddenly is.

Measure first, then change one thing at a time, then measure again. Every request that skips PHP saves tens of milliseconds and a slice of CPU. A good theme ships little CSS and almost no JavaScript. Caching the full HTML page turns a dynamic site into something close to a static one. A fast site starts with the server, but it does not end there.

Visitors notice delays above a few hundred milliseconds, even when they cannot say why. Search engines reward pages that load quickly on slow phones. The database is rarely the problem on a small site, until it suddenly is. Caching the full HTML page turns a dynamic site into something close to a static one. Every request that skips PHP saves tens of milliseconds and a slice of CPU.

Images are usually the heaviest part of a page, so resize them before anything else. Plugins that load scripts on every page cost more than they look. A good theme ships little CSS and almost no JavaScript. Search engines reward pages that load quickly on slow phones. Caching the full HTML page turns a dynamic site into something close to a static one.