Looking for logging into the Tfa 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 Tfa site. After that you can login as usual with your login credentials.
https://vet.royal-canin.de/veterinary-service/tfa/
https://www.royal-canin.de/tfa.html
https://www.tfa-portal.de/
https://www.teachforamerica.org/user/login
https://www.vetion.de/tfa-fortbildung/user/index.cfm
https://www.tfa-dostmann.de/haendler-login/
https://cloud.digitalocean.com/login/tfa
https://www.drupal.org/project/tfa
https://www.drupal.org/project/tfa_basic/issues/2838432
https://help.ea.com/de-de/help/account/origin-login-verification-information/
https://www.hillsvet.de/login
https://www.manageengine.com/products/self-service-password/windows-logon-two-factor-authentication.html
https://apple.stackexchange.com/questions/293810/restrict-icloud-login-by-system-ip-address-without-tfa