A caching plugin improves website speed by storing rendered pages. When a visitor returns, the browser can receive the stored page instead of waiting for it to be rendered again. section 5.1.2
A caching plugin may also provide related performance features:
- Cache preloading renders likely next pages in advance. section 5.1.2
- Code minification removes unnecessary characters, making files smaller. section 5.1.2
- Concatenation combines multiple code files, reducing the number of requests needed to render a page. section 5.1.2
When a page behaves unexpectedly
Check whether the hosting service already performs caching. If the site develops an unexplained bug, temporarily disable the caching plugin; caching plugins can cause plugin conflicts. section 5.1.2
