Redis is an open-source, in-memory data structure store. In the context of WordPress, Redis can be used to store the values generated by WordPress’ native object cache in a persistent manner so that cached objects can be reused between page loads.

Redis is an open-source, in-memory data structure store. In the context of WordPress, Redis can be used to store the values generated by WordPress’ native object cache in a persistent manner so that cached objects can be reused between page loads.