Subdomains below to a specific Root Domain, subdomain dev.yahoo.com, target yahoo.com
You can see the list of subdomains below to a specific Root Domain inside the Subdomain Tag.
List of subdomains
If you click on Open button you navigate inside the Subdomain page. The Subdomain page contains the tags Dashboard, Agents, Services, Directories and Notes.
Dashboard: you can find all the information about the subdomain with the possibility to add labels to the subdomain and the option to specify if it is the main portal for the target.
Services: Shows the list of services and ports running in the subdomain. Check this link for more details.