What is a proxy server?
A forward proxy is an intermediary that relays requests between a configured app and a destination. A proxy that masks your source address and does not forward it can cause websites to see the proxy’s IP instead of your usual public IP.
What does a proxy cover?
Coverage depends on the app and configuration. A browser proxy normally affects that browser, while other apps may still connect directly. Some proxies forward information about the original connection, so using one does not automatically conceal your address.
HTTP, HTTPS, and SOCKS proxies
- HTTP proxies handle compatible web requests. They do not automatically encrypt the connection to the proxy.
- HTTPS proxy connections can encrypt the connection to the proxy. HTTPS to the destination is a separate protection.
- SOCKS proxies relay supported application traffic. SOCKS itself does not provide the same encrypted device-level tunnel as a VPN.
Check the client, proxy protocol, authentication requirements, and DNS behavior before relying on a setup. See MDN’s proxy and tunneling documentation.
How to use a proxy
- Choose an operator you trust and obtain its server address, port, and any authentication details.
- Configure the intended app or operating system using the operator’s instructions.
- Keep HTTPS enabled when visiting websites.
- Check your public IP from that app and confirm whether DNS and other requests take the intended route.
- Remove the proxy configuration when you no longer need it.
Proxy limitations
A changed IP does not establish that all traffic is encrypted or that other apps use the proxy. Unknown free proxies may log activity, fail without warning, or expose unencrypted information. Avoid sending sensitive information through an operator you cannot evaluate.
For broader traffic coverage, consider a VPN. For browser and account choices that go beyond IP masking, see our privacy guide.