Looking for logging into the Typo3 Manual 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 Typo3 Manual site. After that you can login as usual with your login credentials.
https://gist.github.com/iamandrewluca/f618c611abb2515fb5f30e4ad9e14e19
https://docs.typo3.org/typo3cms/extensions/felogin/
https://docs.typo3.org/typo3cms/EditorsTutorial/AccessControl/Login/Index.html
https://docs.typo3.org/typo3cms/EditorsTutorial/Login/Index.html
https://docs.typo3.org/typo3cms/GettingStartedTutorial/GeneralPrinciples/BackendAndFrontend/Index.html
https://docs.typo3.org/typo3cms/extensions/felogin/UsersManual/Index.html
https://docs.typo3.org/typo3cms/EditorsTutorial/
http://www.typo3manual.com/typo3-version-8/1-version-8-basics/13-logging-in-to-typo3-8/
http://www.typo3manual.com/de/typo3manual-7/1-typo3-7-grundlagen/13-login/
https://www.typo3-handbuch.net/
https://www.webmasterpro.de/coding/article/cms-typo3-der-einstieg.html
https://stackoverflow.com/questions/30207176/typo3-manual-login-only-works-with-cookie
https://stackoverflow.com/questions/39077884/typo3-7-extbase-manually-login-frontend-user