Top Level Domain
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(Redirected from TLD)
The top-level domain (TLD), often referred to as the top-level domain name (TLDN), is the very last section of an Internet domain name; in other words the TLD is made up of the letters which follow teh final dot in any domain name. For example, if we look at the domain name, www.superbhosting.com, the top-level domain is the 'com'.
There are three different types of top-level domain names:
- Country code top-level domains (ccTLD): This is a domain name that is used by a country or a dependent territory. It is typically two letters long, like for example, '.us' in the case of the United States.
- Generic top-level domains (gTLD): These are to be used by a specific class of organizations, for example, '.com' is supposed to be the TLD for commercial organizations. gTLD's are sub-classified into sponsored top-level domains (sTLD), like for example, '.aero' and '.museum'. Unsponsored top-level domains (uTLD) are TLDs such as '.biz' or '.info'.
- Infrastructure top-level domains (iTLD): The top-level domain '.arpa' is the only confirmed iTLD although .root has been known to exist as well.
