Looking for logging into the Sharepoint Logs 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 Sharepoint Logs site. After that you can login as usual with your login credentials.
https://support.office.com/en-us/article/view-audit-log-reports-4293e8d5-4e7d-4201-b8ac-c8e63a100131
https://docs.microsoft.com/en-us/office365/securitycompliance/search-the-audit-log
https://docs.microsoft.com/en-us/office365/securitycompliance/search-the-audit-log-in-security-and-compliance
https://social.technet.microsoft.com/Forums/SqlServer/en-US/0e1663f6-d4a3-4543-88e4-7429d82c799c/can-log-in-history-be-tracked-in-sharepoint-2010?forum=sharepointadminprevious
https://answers.microsoft.com/en-us/msoffice/forum/all/get-external-user-login-logs-in-sharepoint-online/200336e2-d9ef-4e88-b9ac-0d6fa2591b7d
https://www.ultimatewindowssecurity.com/sharepoint/
https://sharegate.com/blog/understanding-your-sharepoint-environment-with-audit-logs
https://sharepoint.stackexchange.com/questions/166106/audit-trail-for-log-in-and-logout-in-sharepoint-fba-based-site
https://community.spiceworks.com/topic/1018272-sharepoint-2013-activity-logs-anywhere
https://www.netwrix.com/sharepoint_audit_log_report.html
https://blog.syskit.com/sharepoint-audit-logs-management
https://www.lemonbits.com/2018/09/27/sharepoint-audit-logs/
https://www.quest.com/community/quest/microsoft-platform-management/b/microsoft-platform-management-blog/posts/how-to-configure-sharepoint-online-auditing