GitLab is used only for code review, issue tracking and project management. Canonical locations for source code are still https://gitweb.torproject.org/ https://git.torproject.org/ and git-rw.torproject.org.
On http://www.bing.com the sign up button doesn't bring up the drop down to login. Looking at the requests I see
http://www.bing.com/fd/fb/mulmfg... gets redirected to
https://ssl.bing.com/fd/fb/mulmfg... which doesn't work