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Keeping DNS Answers Fast While Updating Routing Policy
DNS steering systems change over time. Operators add new endpoints. Health state changes. A new region…
Read MoreKeeping DNS Answers Fast While Updating Routing Policy
Building A Runtime Snapshot For Fast Authoritative DNS Decisions
Authoritative DNS must answer quickly. When a recursive resolver asks for a DNS record, the authoritative…
Health Checks In DNS Steering: From Origin Status To Answer Policy
DNS steering should not return an endpoint only because it is nearby. It should not return…
EDNS Client Subnet: Powerful Signal Or Operational Trap?
DNS steering depends on signals. The better the signal, the better the routing decision can be.…
Inside Requester Classification: IP, ASN, Country, And Resolver Signals
DNS steering depends on one basic question: Who is asking? The answer is not always simple.…
Latency, Geography, And Network Distance: What DNS Can And Cannot Know
DNS steering often uses location. That sounds simple. If a user is in the Philippines, send…
Why DNS Steering Is Not Load Balancing
DNS steering and load balancing are often discussed together. That is understandable. Both can influence where…
The Control Plane And Data Plane Of DNS Steering
In the first article, we explained how authoritative DNS can influence traffic direction. The main idea…
