keio.jp keio.jp 慶應義塾共通認証システム / keio single sign-on system Category:universities and colleges Global Rank:29,640 visits:1.6M pages/Per:8.0 auth.keio.jp Category:science and education Global Rank:- visits:532.1K pages/Per:4.0 portal.keio.jp Category:science and education Global Rank:- visits:345.0K pages/Per:2.6 lms.keio.jp Category:publishing and printing Global Rank:- visits:290.4K pages/Per:5.8 ADS