Looking for logging into the D3 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 D3 site. After that you can login as usual with your login credentials.
https://us.diablo3.com/en/search?q=%20login
https://eu.diablo3.com/
https://us.battle.net/forums/en/d3/topic/20764106651
https://stackoverflow.com/questions/49802167/d3-console-log-in-a-function-chain
http://www.d3led.com/portal/login
https://www.a-star.edu.sg/d3/login/ctl/SendPassword?returnurl=https://www.a-star.edu.sg/d3/login
https://www3.rocketsoftware.com/rocketd3/support/documentation/AIX/91/admin/d3_system_administration_guide_overview.htm
https://www.d3office.co.uk/online-ordering.aspx
https://acg.ers.national.aaa.com/D3DispatchACG/login.jsp
https://webmail.d3corp.net/
https://d3security.com/
https://www.reddit.com/r/diablo3/comments/9tjvml/can_you_login_to_your_battlenet_account_on_switch/
https://www.demandforced3.com/