DNS CNAME BASED DOMAIN CONTROL VALIDATION (DCV)
DNS CNAME based DCV requires that a unique CNAME record is created for each FQDN to be included in your certificate.
For example, if a single domain certificate is to be issued to FQDN “secure.wildcardssl.dk” then the following CNAME record must be created with your DNS provider.
_ MD5 hash or CSR .secure.wildcardssl.dk.
SHA-256 hash or CSR.comodoca.com
The MD5 and the SHA-256 hash values are provided to you in an order confirmation.
If you are ordering a SAN/UC certificate, separate CNAME records must be created for each FQDN.
Note: Be aware that your SHA-256 hash may not fit in a single DNS label because it is too long. The SHA-256 hash should therefore be split into two labels, each 32 characters long.
When your CNAME record(s) have been created, please send an email to firstname.lastname@example.org, and we will speed up the CNAME based DCV.
Last updated: July 10, 2018