Ultraviolet rewrites URLs after DNS resolution. If your browser makes a DNS request to resolve "blocked-site.com" before the proxy rewrites it, the firewall logs the attempt. You must combine UV with encrypted DNS (DoH like Cloudflare 1.1.1.1) to be fully stealthy.

While a VPN changes your IP region, an Ultraviolet Proxy must be hosted on a server in the target region. However, because it doesn't require browser plugins or system configuration, it is faster for accessing local news sites or sports scores while traveling.

How to make a Ultraviolet proxy, or connect it with your frontend