Anycast
lastmod 2026-11-10created 2017-05-122 edits
Anycast is a network addressing and routing method that assigns the same IP address to multiple nodes and delivers each packet to the one node that is nearest in routing terms. It is distinguished from unicast, which sends to a single destination; broadcast, which sends to all nodes; and multicast, which sends to a group. It is widely used by globally distributed services such as DNS root servers and CDNs to reduce latency and spread load.