tenaciousd.com is the official website for Tenacious D.
tenaciousdmovie.com was the official website to promote the United States release of Tenacious D in The Pick of Destiny. The website featured lots of extras and information behind the movie. A UK version, tenaciousduk.com, was also released. Both of these sites have since gone, however the German, 'Kings of Rock' website can still be found at warnerbros.de/tenaciousd, and looks visually the same as tenaciousdmovie.com did.
tenaciousd.jp was a Japanese website to promote the 2008 release of Tenacious D in The Pick of Destiny in Japan. The website featured a Tenacious D game by T. Kaga. It formed in 2008 and subsequently closed in 2008, only just after the release of the movie.