DNS propagation checker

You changed a record. Who sees the new value, and who is still waiting for the old one to expire?

Tested from around the worldPlain English + technicalFree, no sign-uppropagation.middle.network
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Public resolvers
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Privacy & filtering
Networks & ISPs
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Every location is on, so you see the whole world.
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About the DNS propagation

Check DNS propagation across public resolvers. See who has the new value, who still caches the old one, and whether differences are just a CDN.

Every result comes in two styles: plain English for everyone, and the exact technical detail for engineers, with the raw JSON one click away.

Questions

Up to the old TTL. Resolvers that cached the old answer keep it until then.

Not after the change. Before the next one, lower the TTL to 300 seconds a day ahead.