Looking for logging into the Facebook For Pages 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 Facebook For Pages site. After that you can login as usual with your login credentials.
https://it-it.facebook.com/login/
https://www.facebook.com/help/community/question/?id=10200840820046617
https://promediacorp.com/2010/12/facebook-lets-users-login-as-page/
https://www.andreavahl.com/facebook/facebook-changes-log-page-like-pages.php
https://stackoverflow.com/questions/6106511/how-to-login-using-fb-api-as-a-page
https://blog.avast.com/2013/03/25/fake-facebook-login-pages-spreading-by-facebook-applications/
https://sproutsocial.com/insights/facebook-page-admin-panel/
https://play.google.com/store/apps/details?id=com.facebook.pages.app&hl=en_US
http://support.agorapulse.com/article/show/70789-how-to-sign-up-and-log-in-to-agorapulse
http://blog.apps-builder.com/how-to-benefit-from-the-private-login-option-via-facebook/
https://auth0.com/docs/connections/social/facebook
https://www.socialmediaexaminer.com/how-to-use-facebook-messenger-for-your-business/
https://www.adweek.com/digital/facebook-business-account/