Dnia 13.12.2021 o godz. 10:10:07 jdebert pisze: > On Mon, 13 Dec 2021 19:19:47 +0800 > Frank Hwa <fr...@tomatoservers.com> wrote: > > > for the second level domain, some are "com.au", "com.hk" (the com > > one), some are "co.uk", "co.jp" (the co one). I am not sure, isn't > > there a standard for this naming? > > > > A long-standing convention to use ISO 2-letter country > codes as TLD for each nation since at least the beginning of DNS, IIRC. > > For consistency sake, 2 letter 2nd level domains were used. ie, co, or, > ac (equivalent of edu), etc.
This is not a universal rule. Some countries use 2-letter SLDs like .co.uk, .co.at, but others adopted the traditional three-letter TLDs like .com, .org etc. to be used as SLD within country's TLD - like .com.pl, .com.br etc. And probably most of the countries do not use any generic SLDs under country's TLD (at least not mandatory ones), but just allow to register names directly under country's TLD, like somename.de, somename.hu, somename.nl etc. -- Regards, Jaroslaw Rafa r...@rafa.eu.org -- "In a million years, when kids go to school, they're gonna know: once there was a Hushpuppy, and she lived with her daddy in the Bathtub."
