Domain names
IDNs
IDNs need to be encoded.
Correct: xn--mnchen-3ya.de
Wrong: münchen.de
Root domain delimiter
For all domains the root domain delimiter (trailing dot) is omitted.
Correct: example.net (without trailing dot)
Wrong: example.net. (with trailing dot)
Examples
| Hostname | Apex Domain | Domain | Sub Domain | Suffix | TLD |
|---|---|---|---|---|---|
| example.net | example.net | example | (empty string) | net | net |
| www.example.net | example.net | example | www | net | net |
| sub1.sub2.example.net | example.net | example | sub1.sub2 | net | net |
| sub1.sub2.sub3.example.net | example.net | example | sub1.sub2.sub3 | net | net |
| www.example.co.uk | example.co.uk | example | www | co.uk | uk |
| sub.cloud.fedoraproject.org | fedoraproject.org | fedoraproject | sub.cloud | org | org |
Hostname
A fully qualified domain name (FQDN)
Apex Domain
Domains that are able to be registered from a registrar.
Domain
An APEX domain minus the suffix.
Sub Domain
A hostname minus the APEX domain.
Suffix
Apex domain without the domain.
Examples
- co.uk
- com
TLD
The last label of the hostname.
Example
uk
Updated 7 months ago