Subdomains are Domains that are still being chopped, for example my.mikyhost .com (my acts as a subdomain, mikyhost as the domain and com as the extension of the domain itself) okay so that's what it means Subdomains.
If we are familiar with Subdomains, of course there is a function. Among the functions of the subdomain itself, the most important thing is to create many websites with the same domain, but if from the purpose of the subdomain itself it is usually used for the following things, bro;
- To create a website with a certain category/product
- To make a website in a certain way
- To create a website within a certain area, region or country
- To create a website in a certain language