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Has your DNS change propagated?

One check asks the major public resolvers what they have cached for a record, and compares each with the answer from the domain's own nameservers.

Domain name

Record type

AAAAACNAMEMXNSTXTSOACAA

A scheme, port or path is fine — everything but the domain is stripped.

Answers are shown as each resolver returned them, at the moment of the check. Every query leaves from one server, so this compares resolver operators, not places.