Anycast
In plain terms
Routing that sends traffic to the nearest of many shared-address nodes.
Going deeper
Anycast assigns one address to multiple servers, and the network delivers each request to the closest one, improving speed and resilience. Many nodes share an identity.
Under the hood
Used by CDNs and DNS for low latency and DDoS resilience; routing picks the nearest instance.
Examples
CDNs, DNS (root servers), DDoS mitigation, global load distribution.
Think of it like...
Like calling one hotline number that automatically connects you to the nearest branch.