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Anycast allows the same IP address to be announced from multiple physical locations simultaneously, with network routing automatically sending each visitor to the nearest one.
Why It's Powerful
Rather than needing DNS-based tricks to direct visitors to a nearby server, anycast handles this at the network routing level — faster and more resilient.
Common Uses
Major DNS providers and CDNs rely heavily on anycast to serve requests from the closest location globally, improving both speed and resilience against localized outages.
Built-In Resilience
If one anycast location goes down, network routing automatically shifts traffic to the next nearest location — often without visitors noticing anything happened.
