Anycast DNS
Authoritative DNS should not have a home region.
Unicast DNS is a single path. If that path is congested or attacked, every lookup for the zone slows or fails — before the application even sees a request.
Cloud DNS advertises the same authoritative service from 210+ Anycast servers. Resolvers use a nearby available path, including during DDoS events.
Why teams use Aptranet
How it works with Aptranet
Cloud DNS combines Anycast resolution with traffic steering and health checks. Growth and Business support TTLs as low as one second.
210+ Anycast servers
Queries are answered from distributed infrastructure instead of one nameserver pair.
DDoS-protected authority
The DNS layer is designed to stay reachable under volumetric attack.
Fast change propagation
A one-second minimum TTL and rapid configuration distribution support production change.
How to set it up
Validate your setup before production changes.
Configure your Cloud DNS zone and verify its records and routing policies. Test answers from the authoritative nameservers before changing your domain delegation.
- 1Create the zone
Import existing records into Cloud DNS.
- 2Delegate the nameservers
Point the parent at Aptranet Anycast NS records, or vanity nameservers.
- 3Lower TTLs when you need to move
Use low TTLs ahead of a cutover, then raise them if you want.
- 4Add steering once authority is stable
GeoDNS, weights and health checks sit on the same Anycast service.
Outcomes
What changes once the hostname is on Aptranet.
- The zone is served from 210+ locations
- There is no single unicast nameserver target
- DDoS is absorbed at the DNS layer
- Steering features share the same footprint
Keep reading
Related pages
More DNS use cases on the same Cloud DNS footprint.
Frequently asked questions
No. Cloud DNS is authoritative. It answers for zones you host, not general public recursion.
A zone has one set of nameservers. Delegate subzones if you must split authority.
No. Anycast is how the authority is reached. Records and policies still decide the answer.
Yes. Cloud DNS supports IPv4 and IPv6 records and transport.