Looking for logging into the 1 Und 1 Drupal Admin 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 1 Und 1 Drupal Admin site. After that you can login as usual with your login credentials.
https://www.siteground.com/kb/drupal_admin_login/
https://www.drupal.org/forum/support/post-installation/2013-04-12/suddenly-cant-login-on-my-site-as-admin
https://www.drupal.org/project/admin_login_path
https://www.drupalcenter.de/node/35515
https://control-center.1und1.de/
https://www.interserver.net/tips/kb/change-drupal-login-url/
https://www.ionos.de/hosting/drupal-hosting
https://stackoverflow.com/questions/53898557/cannot-login-to-drupal-admin-or-reset-password
https://drushcommands.com/drush-8x/user/user-login
https://drupal.stackexchange.com/questions/263551/how-to-reset-admin-password-if-account-is-blocked
https://www.ostraining.com/blog/drupal/log-in-to-drupal-without-a-log-in-block/
https://knackforge.com/blog/sivaji/how-login-any-user-drupal-site
https://randyfay.com/content/resetting-drupal-passwords-drupal-7-drush-or-without