Automatic domain control validation check
DCV polling for DNS TXT, DNS CNAME, and HTTP Practical Demonstration DCV methods
DigiCert's automatic DCV check, also called DCV polling, eliminates the need for you to run validation checks yourself when using random-value-based DCV methods:
With DCV polling, you don't need to return to CertCentral to run a validation check. CertCentral performs the DCV check automatically. However, you can still run a manual check when required.
Acronyms in this article: domain control validation (DCV), Domain Name System (DNS), text (TXT), conical name (CNAME)
DCV polling cadence
DCV polling begins immediately and runs for ten days when you submit a domain for validation:
Interval 1: Every one minute for the first 15 minutes
Interval 2: Every five minutes for an hour
Interval 3: Every fifteen minutes for one day
Interval 4: Every hour for 10 days
When interval four finishes, CertCentral stops checking for the random value. If you haven't finished placing the random value, you must manually run the validation check. Running a manual check also restarts the DCV polling for another ten days.