The top-level domain (TLD) refers to the last segment of a domain name – the part that follows immediately after the “dot” symbol. However, in relation to the specific TLD you’ve asked about, “.THD”, there’s no officially recognized or active TLD under this name according to various sources.
As of the scope of my knowledge, and according to the data from reliable sources like Internet Assigned Numbers Authority (IANA), which is responsible for the global coordination of the DNS Root, IP addressing, and other Internet protocol resources, THD is not listed as an active TLD (source: IANA).
The Interactive Advertising Bureau (IAB) also maintains a similar list of officially recognized top-level domains, and .THD is not found on this list either (source: IAB).
Currently, there are over 1500 TLDs and they fall into two categories: generic top-level domains (gTLD) and country-code top-level domain (ccTLD). Examples of gTLDs include .com, .net, .org etc. and examples of ccTLDs are .us, .uk, .jp, etc.
To put into practice, Amazon.com would be an example of a gTLD, where .com is the top-level domain. The same rule would apply if it was .net or .org. As for ccTLDs, a Japanese website might have a domain of website.jp, where .jp is the TLD.
Even though I couldn’t find a TLD named “.THD”, it’s crucial to recognize that the domain space is always growing. For example, ICANN (the International Corporation for Assigned Names and Numbers) released a new program in 2012 to expand the number of generic TLDs, this included .google, .apple, .amazon, etc. (source: ICANN).
Companies may also have their unique TLDs for internal usage not recognized by IANA or IAB, or it could also be a newly created or proposed TLD. It’s important to stay updated with the latest listings from verified organizations to root out any confusion.
