How to create the subdomain
3rd level domain, i. e. subdomain originates from the extention of the domain menu for another level. There is a text "www" commonly located on the left side from 2nd level domain but it is possible to change it by another term. It is possible to place the independent page at this subdomain, which is placed under the 2nd level domain, for example: there is a company page on the www.your-domain.com and the e-shop can be found at the page shop.your-domain.com
You can create subdomain, that you will create a new folder in the FTP area of the domain in the www_root file. Every folder in the www_root serves as the subdomain.