When posting a short link on Facebook, you might face the error message "Your content couldn't be shared because this link goes against our Community Standards. If you think this doesn't go against our Community Standards, let us know."
Why do you see the error?
1. Facebook blocks short links with generic domains. Short.cm provides the "shortcm.li" domain to test the service. Spammers also use the generic domain, so they often compromise its reputation.
2. If you use a branded domain, but the error still takes place, probably you have broken Facebook rules. Review the Facebook standards to understand what kind of sharing is allowed. How to fix things? Register a new custom domain and never violate the Facebook Community Standards.