What is checked?
- The current value on the authoritative server
- The value each resolver returns, its response time and stale status
- Propagation percentage
How do I read the result?
- Resolvers returning an old value keep the old record until its TTL expires.
- Resolvers that do not answer are left out of the percentage.
- Lowering the TTL before a change speeds up propagation.
Frequently asked questions
How long does propagation take?
At most the TTL of the old record. With a TTL of 3600, most resolvers see the new value within an hour.