Looking for logging into the Ruby 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 Ruby site. After that you can login as usual with your login credentials.
https://railstutorial.jp/log_in_log_out?version=4.2
https://techacademy.jp/magazine/7771
https://qiita.com/tmzkysk/items/12c3392dff6da1c87fdf
https://qiita.com/you8/items/cedbb28aee17e409dc69