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Wildcard Records

NS1 supports wildcard records, like *.example.com or *.sub.example.com.

Wildcards in records are indicated by a leading "*." domain name segment. Please note that you:

  • Must place the wildcard at the beginning of the domain name (*.example.com) not in the middle (www.*.example.com is not allowed)
  • May not include the wildcard as part of a domain segment (ex*mple.com is not allowed)
  • May only have a single wildcard in the domain name (*.*.example.com" is not allowed)

A wildcard record matches any queries "at or below" the level of the wildcard including empty matches. For example, *.example.com will match:

  • example.com
  • www.example.com
  • a.b.example.com
  • many.levels.of.subdomains.example.com

If a specific record name is configured that would otherwise match the wildcard, it supersedes the wildcard record.  So, if you have a record for *.example.com and a separate record for www.example.com, a lookup for "www.example.com" matches the specific record; and a lookup for "abc.www.example.com" matches the wildcard record.