Point of Presence (PoP)

Point of Presence (PoP) is a physical location where a network or cloud provider operates access technology and through which customers, users or other networks connect to its infrastructure. Typically, a PoP is located in a data center or colocation site with routers, switches and servers.

The term is used in several contexts: internet providers reach their customers via PoPs, content delivery networks deliver content from PoPs close to the user, and at internet exchange points (IXP) the PoPs of different networks meet to exchange traffic. Geographic distribution is decisive: the closer a PoP is to users and applications, the lower the latency. Resilience is ensured by several PoPs per region, to which connections are automatically rerouted in the event of disruptions.

In Secure Access Service Edge (SASE), PoPs take on an additional task: in addition to forwarding, security functions such as firewall, web filtering and access control also run there. The PoPs of a provider are frequently connected to each other via a Global Private Backbone. The density and performance of the PoP network are therefore an essential criterion when selecting a SASE platform.