In order to increase functionality, caching is the practice of saving frequently accessed material in a cache. Some of the systems frequently utilized in system design for caching are listed below:
In-Memory Caching: Information is kept in memory for quick access to frequently used information.
Distributed Caching: Scalability and fault tolerance are provided by holding data in a shared cache across numerous servers.
Content Delivery Networks (CDNs): CDNs store frequently accessed data on servers dispersed throughout the world, providing clients based in various locations with instant access to data.