How to Clear Cache After Plugin or Theme Installation


Why Clearing Cache Matters

When you update or install a new theme or plugin, your browser or website may still be showing cached (old) data. This can lead to:

  • Broken layouts
  • Missing features or functionality
  • Plugin/theme conflicts
  • Outdated content or media files

Clearing your cache ensures that all the new assets are correctly loaded, giving users a consistent experience.

Pre-Installation Checklist

  • Ensure you have admin access to your website.
  • Make sure your hosting plan supports caching or provides access to cache settings.
  • Have a basic understanding of whether you’re using a caching plugin (like WP Rocket or W3 Total Cache).

Methods to Clear Cache

1. Clear Browser Cache

  1. Open your browser settings (e.g., Chrome > Settings > Privacy and Security).
  2. Select “Clear browsing data”.
  3. Choose “Cached images and files” and click “Clear data”.

2. Clear WordPress Plugin Cache

Different caching plugins offer different ways to clear cache:

  • WP Rocket: Navigate to Settings > WP Rocket > Clear Cache.
  • W3 Total Cache: Go to Performance > Dashboard > Empty All Caches.
  • LiteSpeed Cache: Click LiteSpeed > Toolbox > Purge All.

3. Clear Server Cache (Hosting Level)

If you’re using managed WordPress hosting (like SiteGround, Kinsta, or Bluehost), you may have a built-in cache management tool:

  • Kinsta: Use the MyKinsta dashboard to clear cache for each environment.
  • SiteGround: Via Site Tools > Speed > Caching > Flush Cache.

4. Clear CDN Cache

If you use a CDN (like Cloudflare), follow these steps:

  1. Login to your CDN dashboard (e.g., Cloudflare).
  2. Navigate to Caching.
  3. Select “Purge Everything” or “Custom Purge”.

After Cache Clearing: What to Do Next

  • Hard refresh your browser (CTRL + F5).
  • Log out and re-login to your WordPress dashboard.
  • Visit key pages to confirm your theme or plugin updates are showing.
  • Use incognito mode to cross-verify cache clearing.

Common Troubleshooting Tips

  • Changes not reflecting? Clear both plugin and server-side cache.
  • Still seeing issues? Try disabling caching plugins temporarily.
  • Images or styles broken? Clear CDN cache and browser cache.
  • Slow performance after clearing cache? Wait for the cache to rebuild properly before testing speed.

FAQs About Clearing Cache After Plugin or Theme Installation

What is cache in WordPress?
Cache stores static files so your website loads faster. But after installing a plugin or theme, it may need to be cleared for changes to appear.
Is clearing cache safe?
Yes. It doesn’t delete any content or settings—just temporary stored files that will regenerate automatically.
How often should I clear my cache?
Only when making major changes like plugin/theme installations or updates. Routine clearing isn’t necessary.
Will users see outdated content if I don’t clear cache?
Yes. Visitors might still load the old design or code until their cache expires or is manually cleared.
What’s the easiest way to clear cache?
Use a caching plugin with a “Clear All Cache” button or your hosting dashboard if it supports server-level caching.

Conclusion

Keeping your website fresh and functional requires clearing the cache when needed—especially after major updates like new plugins or themes. Whether through your browser, plugin settings, or server tools, the steps above ensure your changes are visible to all users instantly. For advanced website maintenance, visit our Monthly Maintenance Plans or explore plugin support in our WordPress Plugins Library.

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