How do I diagnose and fix caching issues in WordPress?

Common caching issues can be diagnosed and fixed through these steps:

  • Clear all cache levels (browser, plugin, server)
  • Check for plugin conflicts
  • Verify server configuration
  • Monitor cache hit rates

The Query Monitor plugin is invaluable for diagnosing cache-related issues. It provides detailed information about:

  • Database queries
  • Cache hits and misses
  • Page load times
  • HTTP requests

If you notice high server load or slow page loads, first clear all caches and then systematically test each caching layer.

📚 Related Resources

💡 These resources provide additional information on related topics.