Looking for logging into the Sfdc 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 Sfdc site. After that you can login as usual with your login credentials.
https://login.salesforce.com/?locale=ap
https://www.salesforce.com/video/1765359/
https://aloha.force.com/
https://hpvertica.secure.force.com/SSOLoginPage/
https://workbench.developerforce.com/
https://www.pardot.com/
https://support.veeva.com/hc/en-us/articles/216008637-Login-As-Feature-Logs-Out-of-Salesforce-Completely
https://salesforce.stackexchange.com/questions/204286/why-cant-i-see-login-button-on-user-record
https://www.qualtrics.com/community/discussion/48/getting-unable-to-login-to-salesforce-invalid-credentials-error-message
https://www.webassessor.com/wa.do?page=publicHome&branding=SALESFORCE
https://answers.splunk.com/answers/706037/salesforce-eventtypesfdc-login-history-does-not-sh.html
https://brainshark.zendesk.com/hc/en-us/articles/208825846-How-to-Grant-Login-Access-to-Brainshark-for-Salesforce-Assistance
https://www.adminhero.com/lightning-login/