Subdomain can be created provide another hostname for other section of your site. Your www may point to a folder (public_html) while a subdomain shop can point to another section (public_html/shop).
Subdomain can also be used for testing of a site prior to going live.
Click on Subdomains tab to add a subdomain.
Type your subdomain name and then click Add domain. Remember to add the subdomain name and it ip address as A record on your zone's DNS servers.
