do4

Do4 refers to a specific domain name extension, or Top-Level Domain (TLD), that was part of an unsuccessful bid to acquire new TLDs during the 2012 ICANN application process. ICANN, the Internet Corporation for Assigned Names and Numbers, oversees domain name system management. Companies and organizations could apply to operate new TLDs, which are the last part of a web address, such as .com or .org. Do4 was one of the proposed new TLDs that did not receive approval. The application process was rigorous, involving technical, financial, and legal evaluations. While many new TLDs were eventually approved and launched in subsequent years, the Do4 application was not among them. The reasons for the rejection of specific applications are often not publicly detailed by ICANN, but typically relate to concerns about trademark protection, operational viability, or potential for abuse. Therefore, a domain name with the .do4 extension has not been made available for registration. The landscape of TLDs continues to evolve, with ICANN periodically opening new application windows.