DPI doesn't just look at the URL; it looks at the pattern of data. VPNs and proxies have "fingerprints." When a firewall sees a lot of encrypted traffic heading to a known proxy server IP, it blocks the IP.
A: For speed, Smart DNS or a paid VPN with a WireGuard protocol (like NordLynx or ExpressVPN's Lightway) is fastest. website-url-unblocker
When you type a URL into your browser, your computer sends a request to the server hosting that site. Firewalls intercept this request. If the domain is on a "blacklist," the firewall blocks the connection. DPI doesn't just look at the URL; it