https://golang.org/cmd/go/#hdr-Remote_import_paths
There are well-known code repositories and there associated golang ImportPath:
- github.com/user/project -> Github (git)
- launchpad.net/project -> LaunchPad (bazaar)
- bitbucket.org/user/project -> BitBucket (git/mercurial)
If your ImportPath starts with your custom domain, like "example.com/mypkg" then the go tool will