middle.network
Health check

Authoritative vs cached DNS

Is the problem your DNS, or someone’s cache? Compare the source of truth with what resolvers remember.

Tested from around the worldPlain English + technicalFree, no sign-up
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About the Authoritative vs cached

Ask a domain’s own nameservers and compare with what public resolvers have cached, to see exactly how stale each cache is.

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

The server that holds the real records for a domain, set at the registrar.