An edge server is a type of server that is located at the edge of a network, typically between the internet and the local network.
Edge servers are used to improve the performance and security of a network by handling network traffic and providing services to users and devices on the network. These services may include caching, load balancing, and content delivery. Edge servers can also help to protect the network by filtering incoming traffic and blocking potential threats.
In the context of a content delivery network (CDN), an edge server is a type of server that is used to store and distribute cached versions of web content to users.
This can help to improve the performance of a website by reducing the load on the origin server and providing users with faster access to the content they request. Edge servers in a CDN are typically distributed across multiple locations around the world, which allows the CDN to serve content to users with low latency, regardless of their location.