If your domain is not verifying, the most common cause is incorrect or incomplete DNS. A hostname may be wrong, a TXT value may be missing characters, an old record may still exist, or the change may not have fully propagated yet.
- Confirm every DNS value exactly as provided.
- Make sure the record type and host name are correct.
- Remove conflicting old values where appropriate.
- Allow enough time for propagation.
- Re-run verification after checking the records.
When troubleshooting, compare what is published in DNS with what your service expects. That comparison usually reveals the issue.