Resources ⮞ Domain Names

This gives information about domain names:

About Domain Names 

A domain name is an address on the Internet. For example:

www.upsdell.com
www.upsdell.ca

The prefix ‘www.’ is traditional, but isn’t always present: depending on how the server is set up, the 'www.' may be required, optional, forbidden, or replaced by something else. For my upsdell.com domain the 'www.' is optional.

The main part of the name (‘upsdell’ in the above example) may have only the letters a-z, the digits 0-9, and a dash, with no dash at the beginning or end, and may not exceed 63 characters. Exception : in June 2003 an Internationalized Domain Names (IDN) standard was issued to allow international characters from 350+ languages in domain names.

In some cases the domain name has subdomains. E.g. BrowserNews might be a subdomain of the upsdell.com domain: hence the address BrowserNews.upsdell.com.

The suffix (e.g. ‘.com’) is called the TLD (Top Level Domain). There are conventions about TLDs:

More TLDs will likely be approved in the future.

More TLDs, sponsored by any entity with enough money to pass an approval process, will appear in the future, potentially allowing the appearance of a very large number of new TLDs. For example: .canon. A list of such TLDs may be found here, and a list of delegated TLDs may be found here.

ICANN provides a resource regarding TLDs in a document titled Universal Acceptance of all Top-Level Domains. It also offers a resource about the introduction of new TLDs at a page titled New gTLD Program.

Domain Name Availability 

There are many places where you can check for the availability of domain names, but one is especially useful: www.allwhois.com enables you to find out the availability of a name with any TLD.

Where to Find Registrars 

Click to find the registrar(s) for a TLD:

.aero
.aero

.asia
.asia

.biz
.biz

.cat
.cat

.com
.com

.coop
.coop

.edu
.edu

.eu
.eu

.gov
.gov

.jobs
.jobs

.info
.info

.int
.int

.mil

.mobi
.mobi

.museum
.museum

.name
.name

.net
.net

.org
.org

.pro
.pro

.tel
.tel

.travel
.travel

.xxx
.xxx

.cc
Country
Domains

   

 Top of Page         Legal Notices