Looking for logging into the Na6 Salesforce 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 Na6 Salesforce site. After that you can login as usual with your login credentials.
https://login.salesforce.com/?locale=br
https://www.salesforce.com/br/
https://www.salesforce.com/campaign/lightning/
https://developer.salesforce.com/forums/?id=906F000000096YkIAI
https://workbench.developerforce.com/
https://dreamevent.secure.force.com/articleView?id=sf1_turn_off_mobile_web_redirection.htm&type=5
https://stackoverflow.com/questions/7841998/treat-salesforce-visualforce-page-as-an-external-widget
https://stackoverflow.com/questions/3806254/a-spring-bean-to-wrap-salesforce-web-service-calls/3834916
https://docs.centrify.com/Content/Applications/AppsWeb/Salesforce.htm
https://community.alteryx.com/t5/Alteryx-Designer-Discussions/Salesforce-connector-error-after-change-in-login-domain-for-SSO/td-p/75766
https://www.salesforce.org/welcome-higher-ed-open-source-software-community/sprint/
https://www.accessify.com/s/na6.salesforce.com
https://salesforce.stackexchange.com/questions/49861/is-there-a-way-to-customize-partner-portal-login-url?rq=1