This is the unique symbolic name (address) of the website that acquires webmaster and appropriates to him at the time of creation. Used to identify sites in the Internet.

A domain name always consists of at least 2 -x parts separated by the "." (point) - domains of the first and second level. Domains of the third, fourth level, etc. can also be used.

For example,, where “net” is a first-level domain (domain zone) and “example” is a unique second-level domain.