I think what happened is you clicked “Build My Site!” without entering a git repository in the text input field.
Right now building sites isn’t private, and there is no authentication, so you could iterate the id numbers, and you could see build logs and from those pages. If a git repository has been used before, instead of building a new website, it brings you to the status panel to rebuild it and it is rebuilt on the same sub domain. That specific one — id 9, looks to be the first time someone clicked the build button without entering any repository, anyone else who does that would be redirected to that page.
I think what happened is you clicked “Build My Site!” without entering a git repository in the text input field.
Right now building sites isn’t private, and there is no authentication, so you could iterate the id numbers, and you could see build logs and from those pages. If a git repository has been used before, instead of building a new website, it brings you to the status panel to rebuild it and it is rebuilt on the same sub domain. That specific one — id 9, looks to be the first time someone clicked the build button without entering any repository, anyone else who does that would be redirected to that page.