Tag
Making WordPress sites load faster.
Troubleshooting
The script ran before jQuery existed on the page, or on a page where nothing asked WordPress to load jQuery at all. The fix is to declare the dependency, not to add another copy of the library.
Troubleshooting
The image was uploaded and saved; the server died while making the smaller copies of it. WordPress retries five times and then deletes the attachment, which is why the photo vanishes from the library after the error.
Plugins
A countdown timer is a few lines of JavaScript. The decisions that matter are fixed versus per-visitor deadlines, time zones, page caching and whether the urgency is real.
WordPress Tutorials
Resize one image in the media editor, cap every new upload with big_image_size_threshold, or shrink an existing library in bulk. Each method has a different catch.
WordPress Tutorials
WordPress lazy-loads images natively since 5.5 and leaves the first few eager since 6.3. Most sites need no plugin — and the most common problem is lazy loading the one image that must load first.
Web Design
Lossless compression removes redundancy and gives back every pixel. Lossy compression throws away detail you are unlikely to notice. For photos on a website, lossy is almost always the right call.
WordPress Tutorials
One upload becomes seven or more files. Here is every default WordPress image size, which ones Settings › Media controls, which ones it hides, and what themes add on top.
WordPress Tutorials
WordPress accepts WebP and AVIF uploads, but it does not convert your JPEGs or serve modern formats on its own. Here is which format to pick and the three ways to deliver it.
Plugins
Every image optimizer compresses. The differences that matter are where the work runs, what happens to your originals, how WebP is served and what is left when you stop paying.
WordPress Tutorials
A slow WordPress database is almost never slow because of overhead in its tables. It is slow because of autoloaded options, runaway transients, bloated meta and missing object caching — measure, then fix those in order.
WordPress Tutorials
Excluding a page from the plugin cache is half the job. The host cache and the CDN keep their own copies, so a page you excluded once can still be served stale from two other places.
Plugins
Turn on what cannot break anything, then the risky options one at a time, testing between each. A tab-by-tab starting configuration with the settings that need exclusions.