As your websites grow and see an increase in traffic, one of the components that shows stress the fastest is the backend database, which can easily be overwhelmed by a modest increase in traffic. Memory object caching systems like Memcached can optimize back-end database performance by temporarily storing information in memory that would usually be retrieved from a database, thus reduce the number of direct requests to your databases. In this guide, we’ll discuss how to install and use memcached on your server.