Veröffentlichung einer GitHub Pages-Website zurückziehen
You can unpublish your GitHub Pages site so that the site is no longer available to everyone using your GitHub Enterprise Server instance.
People with admin or maintainer permissions for a repository can unpublish a GitHub Pages site.
GitHub Pages is available in public repositories with GitHub Free and GitHub Free for organizations, and in public and private repositories with GitHub Pro, GitHub Team, GitHub Enterprise Cloud, and GitHub Enterprise Server.