WordPress Performance Optimization

Comprehensive guide for optimizing WordPress performance: database queries, caching layers, hooks, AJAX, assets, profiling, and anti-pattern detection.

When to Use

• Reviewing code for performance issues in themes or plugins
• Debugging slow page loads, timeouts, or 500 errors
• Optimizing WP_Query or database operations
• Implementing or auditing caching strategy
• Preparing for high-traffic events (launch, sale, viral moment)
• Investigating memory exhaustion or database locks
• Profiling backend performance without a browser

1. Database & WP_Query Optimization

Full code examples: resources/database-queries.md