What is an agent
The proxy server acts as an intermediary forwarding and only forwards your HTTP/HTTPS requests. Hide IP but do not encrypt traffic. Suitable for simple web page access.
What is VPN
VPN establishes an encrypted tunnel, and all network traffic passes through an encrypted server. Hide IP and encrypt traffic to protect privacy. Suitable for use under public Wi Fi.
Core difference
Proxy: Application layer, only proxies browser traffic. VPN: Network layer, encrypts all device traffic. VPN is more secure, but the speed may be slower.
Purchase suggestions
Check the privacy policy (whether logs are recorded), number and location of servers, encryption protocol (WireGuard/OpenVPN), speed, and price. Free VPNs often have privacy risks.
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