# WordPress Object Caching with Redis and Memcached

https://bihostnet.com/en/knowledgebase/article/wordpress-object-caching-redis-memcached-guide

## What is Object Caching?

Object caching stores complex database query outputs directly in server RAM. Instead of re-executing SQL queries on each visitor request, results are retrieved from RAM in microseconds.

## Redis vs Memcached

- **Redis:** Advanced data structures, persistent memory options, optimal for high-traffic WordPress & WooCommerce stores.
- **Memcached:** Simpler, lightweight in-memory key-value cache.

## Enabling Redis in WordPress

1. Enable the `redis` extension in cPanel **Select PHP Version**.
2. Install the **Redis Object Cache** plugin in WordPress.
3. Click **Enable Object Cache** to connect to localhost:6379.