WordPress Database Optimization: Complete Guide

Originally published at https://makewpfast.com/wordpress-database-optimization/ WordPress Database Optimization: Complete Guide Your WordPress database is the engine of your site. While most performance guides focus on caching and CDNs, few address the root cause of slow sites: a bloated, unoptimized database. This comprehensive guide reveals why database optimization matters more than caching, and provides step-by-step techniques you can implement today. If you haven’t already, read Finding What Makes WordPress Slow to understand how to profile your database performance. Why Database Optimization Matters More Than Caching Most WordPress site owners invest in caching plugins, hoping to solve performance problems. But caching is a band-aid. If your database is bloated with 50 MB of autoloaded options, expired transients, and post revisions, caching might reduce page load times by 30%. Database optimization could improve them by 70%. Here’s why: caching reduces the number of database que