| Introduced | Never |
|---|---|
| TLD type | Country code top-level domain |
| Status | Not in use |
| Registry | None |
| Sponsor | None |
| Intended use | Entities connected with  East Germany |
| Actual use | Only internally; unused since German reunification |
| Registration restrictions | No registrations are now taking place |
| Structure | Not in root |
| Dispute policies | None |
| Registry website | None |
.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, Deutsche Demokratische Republik. 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 to the root nameservers. Its only use was internally in an isolated network among the universities of Jena and Dresden.[1]
With the reunification of Germany, East Germany became part of the Federal Republic of Germany (West Germany), which had already been assigned the ccTLD .de. The ISO 3166-1 code "DD" was withdrawn in 1990.[2]
References[edit]
External links[edit]
- "Toplevel-Domain DDR?". Newsgroup: de.admin.misc. 1998-07-21. Usenet: slrn6ra6k5.ii9.kk@moon.sesom.de. Retrieved 2012-06-12. discussion on Usenet (German)
Well, that’s interesting to know that Psilotum nudum are known as whisk ferns. Psilotum nudum is the commoner species of the two. While the P. flaccidum is a rare species and is found in the tropical islands. Both the species are usually epiphytic in habit and grow upon tree ferns. These species may also be terrestrial and grow in humus or in the crevices of the rocks.
View the detailed Guide of Psilotum nudum: Detailed Study Of Psilotum Nudum (Whisk Fern), Classification, Anatomy, Reproduction