That's actually the complete form of a FQDN (full qualified domain name): https://en.wikipedia.org/wiki/Fully_qualified_domain_name#Syntax https://en.wikipedia.

That's actually the complete form of a FQDN (full qualified domain name): https://en.wikipedia.org/wiki/Fully_qualified_domain_name#Syntax https://en.wikipedia.org/wiki/Fully_qualified_domain_name#Sy...