Dotcom is the name of more than one artist:
1) Mashup/trap artist Chris Comstock
2) German minimal electronic

1) Chris Comstock made mashups and trap songs under the name of Dotcom and was based in Philadelphia, PA. Now continues to make music under the name Marshmello.

Facebook page: http://www.facebook.com/dotcommashups
Soundcloud page: http://www.soundcloud.com/dotcomstock

2) DotCom is a young artist from Dresden/Germany
who loves the minimal/electronic sound.
He is just available over www.myownmusic.com Read more on Last.fm. User-contributed text is available under the Creative Commons By-SA License; additional terms may apply.