Why Some Subdomains Are Not Displayed When a Wildcard Subdomain Exists

Question

When a wildcard subdomain *.example.com exists, subdomains resolving to the same IP as the wildcard will not be displayed separately. Instead, only the wildcard entry is shown.

Answer

1. A subdomain must have a  DNS A records to be displayed.
2. If the subdomain and wildcard subdomains resolves to the same IP, only the wildcard subdomain will be displayed 
3. Example:
   1. Subdomain 1234.example.com and *.example.com both resolve to 1.2.3.4 -> only *.example.com will be shown 
   2. Subdomain 5678.example.com resolves to 5.6.7.8 -> Both 5678.example.com and *.example.comwill be displayed

See Also

Adding and removing subdomains to the Digital Footprint