VPN vs Proxy: Encryption, Scope and When a Proxy Is Enough

A VPN encrypts every packet leaving your device and sends it through a server that replaces your IP address. A proxy forwards the traffic of one app, usually a browser, and most proxies add no encryption of their own. Use a proxy to change one app’s apparent location. Use a VPN when the network should not see your traffic.

A proxy is a server that passes your requests on to websites. Data travels online in small pieces called packets. Your IP address is the number that identifies your internet connection.

The core difference: encryption and scope

Both tools put a server between you and the sites you visit. So both change the IP address a site sees. Our guide to changing your IP address covers the other ways to do that. Everything else differs, and the proxy vs VPN decision comes down to three differences.

Encryption. A protocol is the set of rules two machines follow to exchange data. A VPN protocol such as WireGuard encrypts and authenticates every packet with ChaCha20-Poly1305 before it leaves your device. So the network you are on sees only ciphertext, or scrambled data, addressed to the VPN server. A proxy protocol does not do this. SOCKS5 is a proxy protocol specified in RFC 1928. It defines how a client asks a server to relay connections and how the client proves who it is. It says nothing about encrypting the relayed data. Mullvad’s own documentation for its SOCKS5 service states that “the SOCKS5 protocol itself does not include encryption”.

An HTTP proxy relays web requests in the clear, which means unencrypted. If the site uses HTTPS, TLS protects the content between your browser and the site. TLS is the encryption behind HTTPS and the lock icon in your browser. That protection comes from HTTPS, not from the proxy. The proxy still sees which host you asked for.

Scope. A VPN app creates a virtual network interface, a network connection made in software. It changes your device’s routing table, the list that decides where traffic goes. Then every application’s traffic goes through the tunnel. That includes background apps, system updates and DNS lookups. DNS lookups turn site names into IP addresses. A proxy is set up in one application at a time, typically a browser or a torrent client. Everything else on the device keeps using your real connection. That makes it easy for traffic to leak around a proxy. Open a second browser, or let an app fall back to a direct connection, and your real IP is visible again.

What the operator sees. Both the proxy operator and the VPN provider see your real IP address and the destinations you connect to. The difference is what the networks between you and the server can see. With a VPN, your internet service provider (ISP) and local network see nothing but the tunnel. With a proxy, they can still see the proxy’s address. With an HTTP proxy or plain HTTP destinations, they can see the content too. The Electronic Frontier Foundation’s Surveillance Self-Defense guide makes a point about VPNs that applies doubly to proxies: whoever runs the service will see your traffic.

The types of proxy

HTTP and HTTPS proxies. These understand web requests. For plain HTTP, the proxy reads the full request and response and can change either one. For HTTPS, the browser sends a CONNECT request, defined in RFC 9110. It asks the proxy to open a raw tunnel to the destination host and port. The host is the site’s server, and a port is a numbered entry point on it. The proxy then relays encrypted bytes it cannot read. Browser “proxy” extensions and most free web proxies work this way. The operator of a free web proxy sees every site you visit and has no contract with you.

SOCKS5 proxies. SOCKS5 works one layer lower, so it can relay any TCP connection. TCP and UDP are the two main ways programs send data over the internet. Through its UDP ASSOCIATE command, SOCKS5 relays UDP traffic as well. That is why torrent clients and some games support it. It supports username and password authentication.

Several VPN providers bundle a SOCKS5 proxy. Mullvad runs one on 10.64.0.1 port 1080 that you can reach only while connected to its VPN. Mullvad recommends it for fewer CAPTCHAs and a fixed exit IP. CAPTCHAs are the puzzles sites use to check that you are human. Because this proxy sits inside the encrypted tunnel, its traffic is encrypted after all. As of 31 October 2026, IPVanish includes a SOCKS5 proxy with every plan. PrivadoVPN includes one with its Premium plan.

Transparent and corporate proxies. Schools and employers often route all web traffic through a proxy for filtering and logging. You do not have to set anything up on your side. A VPN tunnel hides your traffic from such a proxy. That is one reason those networks sometimes block VPN protocols.

Smart DNS: the third option

Smart DNS is neither a VPN nor a conventional proxy. A DNS resolver is the server that turns site names into IP addresses. With smart DNS, you change your device’s resolver to one the provider runs. For most domains, it answers normally. For the domains of selected streaming services, it returns the address of a proxy. The service’s location check then sees the proxy’s country, while the video itself streams directly. Nothing is encrypted, and your IP address does not change for anything else. Its appeal is that it works on devices that cannot run a VPN app, such as some smart TVs and consoles. So the smart DNS vs VPN choice is really a question about the device.

Our data on 31 October 2026 shows the option shrinking:

• NordVPN still includes SmartDNS, branded SmartPlay.
• ExpressVPN offers its MediaStreamer DNS for Samsung TVs, Roku and Chromecast.
• Surfshark discontinued its SmartDNS on 2 February 2026.
• CyberGhost and Private Internet Access still document smart DNS setup. Both state that it is no longer compatible with streaming services.
• Proton VPN, Mullvad and Windscribe offer none.

Streaming access of any kind is the provider’s claim. We have not yet tested it in our lab. Our page on best VPNs for streaming gives the device-by-device picture.

VPN vs proxy vs smart DNS at a glance

When a proxy is enough

A proxy fits when you want to change where one application appears to be. It also needs a network you trust, where you do not need the network to be blind to your traffic. Some examples:

• a browser profile that should appear in another country, for testing a website
• a torrent client bound to a SOCKS5 proxy, so that only its traffic moves through the provider
• a developer routing one tool through a fixed egress address, so its traffic always leaves from the same IP
• Mullvad’s case of using the in-tunnel SOCKS5 proxy on top of the VPN, to get a fixed IP and fewer CAPTCHAs

In each case, the proxy does a narrow job. The surrounding traffic is either unimportant or already protected.

A proxy is the wrong tool when privacy from the network is the point. On public Wi-Fi, an HTTP proxy leaves the hostnames you visit visible to the operator. Anything over plain HTTP stays visible too, exactly as if you had no proxy at all. Free proxy lists are worse than nothing for privacy, because you hand your traffic to an operator you cannot identify.

When you need a VPN

Choose a VPN when any of these apply:

• You are on a network you do not control, and you want it to see nothing but an encrypted stream.
• You want every app on the device covered without setting up each one.
• You want DNS lookups inside the tunnel.
• You need a kill switch, so that a dropped connection fails closed, not open. A kill switch blocks your internet if the VPN connection drops.
• You need to get through a network that blocks VPNs. That calls for an obfuscated protocol, which disguises VPN traffic, not a proxy.

As documented on 31 October 2026, Mullvad’s kill switch is built in, on by default and cannot be turned off. ExpressVPN’s Network Lock is on by default. Our how a VPN works page covers the mechanics. Our what is a VPN page covers the uses and limits, and the reviews hub covers the providers.

Neither tool gives anonymity. Both operators see your real IP and your destinations. Websites still identify you by cookies and logins. Cookies are small files that sites store in your browser to recognize you. If anonymity is the goal, read VPN vs Tor and the rest of the Learn hub.

Related

• What is a VPN?
• How does a VPN work?
• VPN vs Tor
• Is a VPN worth it?
• What a VPN kill switch does
• Best VPNs for streaming
• Is my VPN working? Leak check
• All VPN reviews