Best SEO – http://semalt.com
Use Direct Siteground coupon/saving link at https://www.siteground.com/go/save
Siteground hosting allows their customer to create unlimited subdomain name. Login to cPanel and you will see the infinite sign at the subdomains section. Clicking the subdomain icon and you will get the maintenance section.
Subdomains are URLs for different sections of your website. They use your main domain name and a prefix. For example, if your domain is “budgetwebhosting.space”, a subdomain of your domain might be “support.budgetwebhosting.space”. Subdomains are relative to your account’s home directory.
Main concern when come to having subdomain names are Google SEO, cause they treat subdomain as subfolder and they will punish website with duplicated content or doorway page similar sites. Google limited the result for your domain to 2 results only. There is no SEO advantage of having multiple subdomain. Having poorly managed subdomain and content uniqueness will cause the site to be penalized by Google search engine. Read more http://www.seobook.com/google-subdomains-and-branding
Next is the SSL certificate, and subdomain name will require wildcard SSL certificate to work. That is very costly and not many webmasters are willing to purchase this wildcard SSL.
Siteground Review: Domain, Subdomains and Google SEO Concern – Semalt