01
How anycast helps
With anycast, many PoPs announce the same prefix. Legitimate users and attack traffic are pulled toward nearby locations, distributing load instead of forcing every packet into one data center or one transit path.
Anycast Defense
Anycast DDoS Protection Guide
Spread traffic across multiple PoPs instead of one target.
Anycast DDoS protection advertises the same service IP from multiple locations, attracting traffic to the nearest healthy edge where it can be filtered or served.
02
Best-fit services
Anycast is common for DNS, CDN edges, APIs, static sites and global proxies. Stateful applications can still use anycast, but session handling, health checks and failover behavior must be designed carefully.
03
Limits to understand
Anycast spreads and absorbs traffic, but it is not a complete filter by itself. Each PoP still needs DDoS capacity, rules, telemetry and a route withdrawal strategy when a location is unhealthy.
Anycast Defense
Anycast protection checklist
Deploy service prefixes from multiple resilient PoPs
Use health checks to withdraw unhealthy locations quickly
Keep filtering policy consistent across edges
Design session behavior for failover and route changes
Watch per-PoP utilization, packet loss and route visibility
Combine anycast distribution with scrubbing and L7 controls
Anycast DDoS FAQ
Does anycast make DDoS attacks smaller?
It distributes traffic across locations, so no single site has to absorb the whole event. Filtering capacity is still required at each edge.
Is anycast only for DNS?
No. DNS is the classic use case, but anycast is also used for CDNs, web proxies, APIs and global edge services.
What happens if one PoP fails?
The unhealthy location should withdraw its route so traffic moves to the next best healthy PoP according to internet routing.
Design resilient edge routing
TMW Global can combine anycast-friendly routing, protected transit and edge filtering for globally reachable services.