You can now find a couple of new fields in the Column Manager that show you the number of Related Domains for the Domain Name. A domain is considered a Related Domain if it starts or ends with the supplied domain name. The complete domain name is used for the check. Hyphens or numbers are not removed! If the domain is "123domain-name.com", the check would look for domains starting/ending with "123domain-name".

The database used for this is compiled every day using the CNOBI zonefiles. You can choose from 3 sets of fields. If you are only interested in .com, you can use the .com only fields or use the combination fields for CNO or CNOBI. Short domains are not checked (under 4 characters).

You can use the Related Domains Tool to make a live check and see the corresponding domains.