WP Redis

By Pantheon Systems

Performance & Optimization / Caching Solutions

WP Redis Review - In-Depth Analysis

Enhance your WordPress site's performance by using Redis for object caching. Ideal for high-traffic sites.

Performance Overview

WPS Score

6.71/10

User Rating

4.7/5 (based on 20+ reviews)

Active Installations

9,000+

Update Frequency

Below Average It is calculated using the weighted average of same category plugins.

Security Score

1 / 10 (Very Low Risk) It is calculated using the weighted average of all versions.

What It Does

This plugin allows you to back your WordPress Object Cache with Redis, a high-performance in-memory storage backend. For sites concerned with high traffic, speed for logged-in users, or dynamic page loads, a high-speed and persistent object cache is essential.

Redis is an excellent solution for this purpose, and it can scale across multiple instances of your application. This plugin integrates seamlessly with Redis, making it suitable for any self-hosted WordPress site that has Redis installed.

It is crucial to use the object cache wisely to avoid performance issues. Keep the number of keys sensible, avoid storing large amounts of data on each key, and manage frontend writes and deletes effectively.

The plugin also includes various WP-CLI commands for managing Redis operations, allowing for easy debugging and configuration. You can enable WP Redis and check connection details through these commands.

Other Notable Features

Here are a few other notable features of this free WP Redis plugin.

Object Cache

Redis

Cache

FAQ

If you are concerned with the speed of your site, backing it with a high-performance, persistent object cache can have a huge impact. It takes load off your database, and is faster for loading all the data objects WordPress needs to run.

A page load with 2,000 Redis calls can be 2 full seconds of object cache transactions. If a plugin you’re using is erroneously creating a huge number of cache keys, you might be able to mitigate the problem by disabling cache persistency for the plugin’s group:

wp_cache_add_non_persistent_groups( array( 'bad-actor' ) );

This declaration means use of wp_cache_set( 'foo', 'bar', 'bad-actor' ); and wp_cache_get( 'foo', 'bad-actor' ); will not use Redis, and instead fall back to WordPress’ default runtime object cache.