Redis, an enterprise-grade cache system, now free

Among the various strategies to optimise the performance of WordPress or of any application is using Redis as an object cache.

Redis, which stands for Remote Dictionary Server, is an in-memory data store. Here it's used to store and quickly serve data that would normally require a query to the MySQL database, a query that, depending on its complexity, the size of the database and many other factors, could slow down the overall loading of the site.

That's why using Redis can make a significant difference, similar to what you experience when you enable a cache system such as LiteSpeed Cache or WP Accelerate. Redis isn't meant to replace these cache systems, but to complement them and optimise the loading speed of the site or app even further.

Until recently, using Redis as an object cache was reserved for large projects: the technical requirements could call for dedicated servers, or for paying a high price to connect the app to a specialised system.

But from now on the rules of the game change, and Redis is available free of charge on every hosting plan, whether with LiteSpeed Cache, WP Accelerate or any other cache plugin that supports configuring a connection to Redis.

For more information, see our manual, where we explain in more detail how to start using it today: Setting up Redis as an object cache.