Generic instructions to add verification code string DNS TXT record. You may need to check with your DNS provider for any specific instructions they may have.
Example: your FQDN is example.com. Adding a DNS TXT record will require three fields: Host, TXT Value, and Time to Live (TTL)
- Log in to your DNS provider and create a new TXT record.
- In the Host field leave the host field blank, or use the @ symbol (depending on your DNS provider requirements).
- In the TXT Value (or Address) field paste the verification code string generated for you.
- In the TTL field enter the shortest time-to-live that your DNS provider will allow. Some DNS providers will allow a TTL of 5-minutes (300 seconds) and some will not allow you to set the TTL at all (not a problem).
- Save the TXT record.
- Check your domain's live DNS record to see if the new TXT value has propagated (it may take some time depending on your TTL): https://toolbox.googleapps.com/apps/dig/#TXT/
If you are not able to add the verification code to your base domain's DNS record because it already has a TXT record you can create a new TXT record and enter _dnsauth as the host value rather than leaving it blank.
When you check your live DNS record
you should see the TXT verification code in the answer section of the DNS response (it may take some time depending on your TTL).