Why do some stackexchange sites such as Askubuntu have their own domain when the rest are subdomains of stackexchange.com? Why isn't it ubuntu.stackexchange.com, which currently acts as a redirect?
At one point, all Stack Exchange sites were going to have their own domain names. This was then rolled back. There has been some debate on the topic over on Meta Stack Exchange. Ask Ubuntu was both grandfathered in and part of an agreement between Stack Exchange and Canonical. This answer by Jeff Atwood gets to the point:
Any way, long story short -- if you can get Apple, Inc. to officially sign off on the site, we will happily change the domain name to whatever is required. Beyond that Act of God scenario, we simply aren't doing custom domain names for any sites as a matter of policy.
7In other words, "AskApple.com" would create Trademark confusion.– NickJun 2, 2014 at 2:34
1@Nick Also, "AskApple.com" would make people think they were directly talking to Apple. This site is "AskUbuntu", not "AskCanonical", although I'm not 100% what "Ubuntu" means here.– SparhawkJun 2, 2014 at 6:56
3@Sparhawk Ubuntu is technically a registered trademark (see sec. 3) of Canonical. It just so happens that Ubuntu is to Canonical as Windows and the Xbox are to M$. In all those cases, the product is quicker recognized than the company. More emphasis: Canonical owns www.ubuntu.com and www.canonical.com, while Microsoft owns www.xbox.com and www.microsoft.com. In both cases, the former is visited far more often.– ClaudiaJun 6, 2014 at 19:54