Domain Extension Table
What are the valid domain extensions?
What are gTLD and ccTLD?
Explanation
Domain Extension:
As we have already seen that a Domain Name has two parts, name and extension.
While user can choose any name for their domain, they can choose the extensions from the pre-defined combination. Every domain name ends in a top-level domain (TLD) name.
Top level domain (TLD) can be categorized as generic top level domains (gTLD) and country code top level domains (ccTLD).
Table of Top Level Generic extensions (gTLD).
Domain names may be registered in .com, .net, and .org without restriction.
ccTLD:
TLDs with two letters (such as .in, .de, and .jp) have been established for over 240 countries and external territories and are referred to as "country-code" TLDs or "ccTLDs".
Table of cc TLDs
As we have already seen that a Domain Name has two parts, name and extension.
While user can choose any name for their domain, they can choose the extensions from the pre-defined combination. Every domain name ends in a top-level domain (TLD) name.
Top level domain (TLD) can be categorized as generic top level domains (gTLD) and country code top level domains (ccTLD).
Table of Top Level Generic extensions (gTLD).
| Name | Usage |
| .aero | Reserver for Air-transport industry sites |
| .biz | Restricted to Businesses web sites |
| .com | Most used extension in web - stands for commercial |
| .coop | Reserved for cooperative associations |
| .info | stands for information |
| .museum | Reserved for museums |
| .name | Reserved for individuals |
| .net | commonly used extension and stands for Network |
| .org | commonly used extension and stands for Organisation |
| .pro | Restricted to credentialed professionals |
| .travel | Reserved for travel industry web sites |
| | |
| .gov | Specially reserved extension |
| .edu | - do - |
| .mil | - do - |
| .int | - do - |
ccTLD:
TLDs with two letters (such as .in, .de, and .jp) have been established for over 240 countries and external territories and are referred to as "country-code" TLDs or "ccTLDs".
Table of cc TLDs
