The top-level domain (TLD) “.TUI” does not officially exist in the current Domain Name System (DNS) of the Internet. In general, top-level domains are the highest level in the Internet’s hierarchical DNS and appear in domain names as the string of letters following the last (farthest to the right) dot, with the most common TLDs being “.com”, “.edu”, “.gov”, “.org”, and “.net”.
ICANN, the Internet Corporation for Assigned Names and Numbers, is in charge of controlling top-level domains. The ICANN has broadened the TLD system by offering “Brand TLDs,” allowing businesses to use their brand name as a TLD. However, there is no official record of “.TUI” TLD in the ICANN’s database of approved TLDs (ICANN’s TLD Registry). “TUI” could potentially be a future brand TLD if the TUI Group, a multinational travel and tourism company, applied to ICANN for approval, but to date, this has not occurred.
For a top-level domain to exist, it must first be applied for during one of ICANN’s application periods (ICANN). If approved, the domain becomes available for purchase and usage by the general public or, in the case of brand TLDs, by the brand owner exclusively. This whole process involves various steps and costs a significant amount. If a brand wishes not to share its TLD with the general public, it has to enforce restrictions pursuant to ICANN policies (ICANN).
Here is a good alternative example of a brand TLD: The multinational technology company, Google, owns the “.google” TLD. The TLD was approved by ICANN and is now used by Google for a variety of their websites, such as “blog.google”.
In conclusion, the .TUI TLD does not officially exist presently. The creation of new TLDs is regulated by ICANN, and the process is complex and costly. As such, most TLDs in current use are both well-established and widely recognized.
Sources:
ICANN’s List of TLDs: Retrieved from https://data.iana.org/TLD/tlds-alpha-by-domain.txt
ICANN’s page on new TLD program: Retrieved from https://newgtlds.icann.org/en/
ICANN’s page on TLD applicant Guidebook: Retrieved from https://newgtlds.icann.org/en/applicants/agb
Google’s use of “.google”: Retrieved from https://www.blog.google/
