I’m sorry, but according to the Internet Assigned Numbers Authority (IANA), which is responsible for the global coordination of the DNS Root, IP addressing, and other Internet protocol resources, there is currently no top-level domain (TLD) under the name ‘.YUN’.
The list of top-level domains is strictly maintained and updated by IANA under the responsibility of the Internet Corporation for Assigned Names and Numbers (ICANN). Top-level domains include categories such as generic top-level domains (gTLDs) like .com, .net, .org, .gov, .edu, and .mil; country code top-level domains (ccTLDs) like .us, .uk, .jp, .fr, and .au; and infrastructure top-level domain which is currently just .arpa. There are also sponsored top-level domains (sTLDs) like .aero, .asia, .cat, .coop, .edu, .gov, .int, .mil, .museum, .tel, and .travel. These sponsored domains are proposed and sponsored by private agencies or groups that establish and enforce rules restricting the eligibility to use the TLD.
In addition, ICANN introduced a program for new generic TLDs, enabling entities to apply for virtually any string as a gTLD, provided it meets certain technical and financial criteria. This program resulted in a significant expansion of the domain name system, with new gTLDs such .google, .apple, .amazon, .club, to give some examples.
However, it is worth mentioning that the process to apply for a new gTLD is quite arduous and expensive. According to ICANN, the evaluation fee is $185,000, and there are currently no application periods open. The application process itself requires technical, financial, and operational capacity, and applications are subjected to both automated and manual checks against a variety of criteria.
As for the domain ‘.YUN’, it’s important to note that TLDs can’t just be made up and used—they have to be created, approved, and maintained by a central registry as recognized by ICANN. As of now, ‘.YUN’ does not exist in the IANA TLD database.
Further information about Top-level Domains can be found at ICANN’s website (https://www.icann.org) and the IANA’s website (https://www.iana.org).
Sources:
1. IANA Root Zone Database. (n.d.). Retrieved from https://data.iana.org/TLD/tlds-alpha-by-domain.txt
2. New gTLD Program. (n.d.). Retrieved from https://newgtlds.icann.org/en/program-status/delegated-strings
3. ICANN: New Generic Top-level Domains Application Process. (n.d.). Retrieved from https://newgtlds.icann.org/en/applicants/global-support/faqs/faqs-en
4. IANA. (n.d.). Delegation Report for .YUN. Retrieved from https://www.iana.org/reports/yun-report
