Saving the result of expensive work so the next request can return it instantly.
Reviewed by Ali Yasin Jatoi · Updated
WordPress caching covers page cache (full HTML), object cache (database queries), and browser cache (static assets). A correctly tuned cache stack drops average response time from 600ms to under 50ms. Misconfigured caches cause logged in users to see other users' data.
Related terms
CDN (Content Delivery Network)
A global network of edge servers that serves your static files from the location closest to each visitor.
Object Cache
A memory store like Redis or Memcached that holds frequently used database query results.
Page Cache
A saved HTML snapshot of each page so PHP and the database do not run on every visit.
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