This is https://www.elpidis.com - NOTE the S after http and the WWW

Domain, without www and with SSL Certificate

Alternative websites on the same hostname/domain

• http://elpidis.com - without WWW & without SSL
• http://wwwelpidis.com - with WWW & without SSL
• https://elpidis.com - without WWW, wit SSL
• https://www.elpidis.com - with WWW, with SSL
• http://yannis.elpidis.com - another subdomain "yannis"
• http://zzz.elpidis.com - another subdomain "zzz" similar to "www"

The www is the default subdomain, which refers to the "World Wide Web".

With any domain we buy we can have UNLIMITED subdomains such as "www", "yannis" and "zzz"

If we want to secure ALL sudomains we can get a wildcard SSL Certificate.