A Hostname ( sitename) is the unique name by which a network-attached device (which could consist of a computer, file server, network storage device, fax machine, copier, cable modem, etc.) is known on a network. The hostname is used to identify a particular host in various forms of electronic communication such as the World Wide Web, e-mail.
Hostnames can be a confusing as they have a double meaning.
Here are some examples:| Full Address | Hostname | Domain Name | TLD |
www.no1tutorial.com | www | no1tutorial.com | com |
no1tutorial.com | no1tutorial.com | no1tutorial.com | com |
www.google.net | www | google.net | net |
my.www.no1tutorial.com | my.www | no1tutorial.com | com |
As you can see from the examples the hostname can be many different things.
- If the entire address consists of only 2 parts, then the hostname is equivalent to the domain name.
- If the entire address consists of more than 2 parts, then the hostname is equivalent to all the left most pieces before the right 2 parts (or the domain name)
To make things even more confusing, you can refer to the full address in its entirety as a hostname. For example, with www.no1tutorial.com:
- no1tutorial.com is the domain name.
- www is the hostname
- www.no1tutorial.com is the hostname as well!!!
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