The 464 Host Not Allowed error occurs when your proxy request attempts to connect to a hostname, domain, or IP address that is restricted or blocked by our system. This restriction is in place to ensure compliance with our usage policies, security protocols, or legal requirements.

If you find this error, it means the specific destination you’re trying to access is not permitted through our proxy network. To better understand which domains or addresses are restricted, you can review our list of blocked domains here: List of Blocked Domains.