Looking for logging into the Google Sites Page site and are not getting the correct working link for it? In such a case, you can use the links given here by searching your desired login page in the search box. If the page is present on our website then you will get all the links related to the Google Sites Page site. After that you can login as usual with your login credentials.
https://productforums.google.com/d/msg/sites/iJvT4X3q1xA/2LPOrD_cCQAJ
https://sites.google.com/site/authprodemo/login
https://sites.google.com/
https://www.youtube.com/watch?v=xGqy78zAk1o
https://www.youtube.com/watch?v=C-Jz_Nrqk7Y
https://www.youtube.com/watch?v=uJv2CFRRQ6Q
https://www.youtube.com/watch?v=mmeLQZXmDRM
https://www.youtube.com/watch?v=GoHnRZxfaBk
https://support.google.com/a/answer/184005?hl=en
http://caenfaq.engin.umich.edu/google-sites/how-do-i-access-my-site-to-start-editing-it-gs
https://stackoverflow.com/questions/26041301/custom-google-login-page
https://www.authpro.com/webhost-google-sites.shtml
https://www.powr.io/tutorials/how-to-add-membership-form-widget-to-your-google-site