What Do I Do If DNS Verification for a DV Certificate Fails?

Too many verification requests. Try again later.

You may submit too many verification requests in a short time. Wait for 3 to 5 minutes and then perform the verification.

DNS records do not match.

The DNS record you configured is incorrect. Obtain the correct record by referring to Step 2 Obtaining Verification Information and configure the DNS record again.

DNS verification failed. Try again later.

Check whether the following problems exist:

• Problem 1: The DNS record does not take effect.

  Solution: The configured DNS record does not take effect immediately, which depends on the TTL time set on your DNS server. So, wait for 3 to 5 minutes and then perform the verification again.

• Problem 2: DNS records are correctly configured, but the verification still fails.

  Solution: The CA verification server is located outside China. There might be network errors sometimes. Try again about 1 to 2 hours later.

• Problem 3: The domain name has not been licensed or passed the real-name authentication.

  Solution: Have the domain name licensed and complete real-name authentication first. Then, verify the domain name ownership again.

• Problem 4: The domain name has a CAA record set.

  Solution: Delete all CAA records from the domain name resolution record sets.

• Problem 5: The CA verification server does not find the DNS resolution record.

  Solution: The CA verification server is located outside China. So, you need to allow servers outside China to access the domain name temporarily.