Looking for logging into the Concrete5 Custom Page 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 Concrete5 Custom Page site. After that you can login as usual with your login credentials.
https://www.concrete5.org/community/forums/customizing_c5/custom-login-page
https://documentation.concrete5.org/tutorials/how-to-set-a-custom-login-page-background-image-in-5-7-5
https://documentation.concrete5.org/tutorials/how-find-login-url-your-concrete5-website
https://www.concrete5.org/marketplace/addons/mrkdilkington-login-page-background
https://legacy-documentation.concrete5.org/tutorials/themimg-system-pages
https://www.concrete5.org/developers/bugs/8-0-3/custom-login-destination-not-working
https://documentation.concrete5.org/developers/designing-for-concrete5/applying-your-theme-to-single-pages-with-theme-paths
https://documentation.concrete5.org/developers/users-groups/advanced-creating-custom-authentication-type
https://documentation.concrete5.org/developers/working-with-pages/single-pages/overview
https://documentation.concrete5.org/editors/dashboard/system-and-maintenance/login-and-registration/login-destination
https://stackoverflow.com/questions/31415279/custom-login-php-template-in-concrete5-page
http://www.concrete5tutorials.com/concrete5-user-tutorials/how-login-your-concrete5-website
https://www.absolute-design.co.uk/services/concrete5-cms/hardening-concrete5-and-enhancing-security/