Caching speeds up your site but can show outdated content after changes.

1. Caching plugin: if you use one (for example, WP Super Cache or W3 Total Cache), open its settings and click Clear/Purge Cache.
2. Browser cache: clear your own browser cache (article 199) to confirm you're seeing the live version.
3. CDN cache: if you use Cloudflare (article 139), purge its cache from the Cloudflare dashboard.

Tip: If changes "aren't showing," it's almost always a cache. Clear the plugin, CDN, and browser caches in that order.