Looking for logging into the Salesforce Customer Community License 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 Salesforce Customer Community License site. After that you can login as usual with your login credentials.
https://help.salesforce.com/apex/HTViewHelpDoc?id=users_license_types_communities.htm
https://help.salesforce.com/articleView?id=users_license_types_communities.htm&type=0
https://developer.salesforce.com/forums/?id=906F0000000AajCIAS
https://success.salesforce.com/answers?id=9063A000000pLEjQAM
https://help.salesforce.com/apex/HTViewHelpDoc?id=networks_licenses_limitations.htm
https://help.salesforce.com/HTViewSolution?id=000206085
https://success.salesforce.com/ideaView?id=08730000000l95wAAA
https://www.salesforce.com/eu/products/community-cloud/pricing/
https://help.salesforce.com/apex/HTViewHelpDoc?id=networks_migrate_users_between_licenses.htm
https://www.salesforce.com/editions-pricing/community-cloud/
https://developer.salesforce.com/blogs/developer-relations/2014/02/salesforce-communities-licenses.html
https://help.salesforce.com/apex/HTViewHelpDoc?id=networks_upgrade_licenses.htm&language=en_us
https://help.salesforce.com/apex/HTViewHelpDoc?id=networks_create_external_users.htm