.dd part of the Federal Republic of Germany, which had already been assigned the ccTLD .de. The ISO 3166-1 code "DD" was withdrawn in 1990. .dd .dd was the assigned country code top-level domain (ccTLD) for the German Democratic Republic (East Germany). It was chosen based on the ISO 3166-1 alpha-2 code for the German Democratic Republic, the letters coming from the German name of the country: '. In accordance with IANA policy, .dd was therefore available to be assigned as the country code top-level domain (ccTLD) for East Germany. However, this was never done, and so .dd was never added
Generic top-level domain their brand as a top-level domain. Specification 13 is an addendum to the registry contract that describes specific provisions to brands to run their Top Level Domain in a closed fashion. 517 applications to qualify to Spec 13 were made to ICANN, 36 requests were rejected by ICANN or withdrawn by the applicant, 4 are pending review. In 2018, Spamhaus rated .men as the worst top-level domain in terms of spam and scamming. .men comes top with 60.6 per cent of its 73,000 domains identified as "bad", resulting in a badness index of 6.48. The company that runs .men, Famous