Direct answer

The resolver says the queried name does not exist. Confirm that the record was created in the authoritative zone and that delegation points to the expected nameservers.

Where this error appears

Browsers, APIs, email records, CDNs, and public DNS

Root cause

The hostname may be misspelled, absent from the active zone, created under the wrong DNS provider, hidden behind broken delegation, or cached as a negative answer.

Minimal reproduction

DNS
DNS_PROBE_FINISHED_NXDOMAIN

Corrected example

FIXED
Query the exact FQDN and record type, confirm NS delegation, create or correct the record in the authoritative provider, then allow the negative-cache TTL to expire.

Verify the fix

TERMINAL
Run DNS Lookup for the exact host and compare the returned record with the intended public service.

Things to check

  • A root-domain record does not automatically create a www record.
  • Changing nameservers and changing records are different operations.
  • Avoid repeatedly changing records before identifying the authoritative zone.