Why a VPN Changes Your IP Address — and What It Does Not

A VPN can change the public IP a website sees because the connection reaches the website through a VPN exit. It does not have to replace the address your internet provider assigned to your home. Both addresses can exist at the same time, with different roles.

Understand the route · Check before and after · If the IP stays the same · What this does not prove

Follow the connection, not just the label

For browsing traffic routed through a typical consumer VPN, the simplified path is:

1. Your device reaches the VPN service over its existing internet connection.
2. The VPN tunnel carries the selected traffic to an exit.
3. The exit connects onward; the destination website sees that internet-facing address.

This is a routing model, not a guarantee that every VPN protects every application. Different VPNs and configurations handle traffic differently. The IETF's IPsec architecture describes tunnel and traffic-policy concepts for one VPN family; it is not a claim that every consumer VPN uses IPsec.

The private address in your laptop's network settings can remain unchanged. If those two readings seem contradictory, compare their roles using public vs private IP addresses.

A useful before-and-after check

1. If it is appropriate to browse without the VPN, record your public IP address before connecting. Do not disconnect a required work or privacy connection simply to perform this comparison.
2. Connect the VPN and wait until its app reports the intended server or location.
3. Reload the IP page in the same browser. Record the address and address family, not only the city.
4. Use IP lookup to compare network and approximate location information. A different IP is useful evidence for this browser request; an estimated city is not a precise server-location certificate.

You can keep this comparison in a private note. There is no need to publish either address. If your IP is different but a service still shows the old region, follow the wrong-location checklist before reconnecting repeatedly.

Why the IP may not change

• The browser is excluded. Split tunneling deliberately sends some traffic outside the VPN. Check the app's inclusion and exclusion settings. Proton VPN's documentation is one concrete example; feature availability and behaviour vary by platform and provider.
• You installed only a browser extension. Its scope may be limited to supported browser traffic, rather than the whole device. Read the actual product's scope; this provider's extension documentation illustrates browser-specific exclusions.
• You are comparing different address families. A single visit uses one connection. An IPv4 result alone cannot establish how IPv6 traffic is routed, or vice versa. See IPv4 and IPv6.
• The route is not the one you expected. Recheck connection status and the selected exit, then compare again. An unchanged address is a reason to investigate, not enough evidence on its own to declare a leak or a faulty VPN.

A changed IP is not an anonymity test

A VPN moves trust toward another network operator. It does not make a logged-in account unknown to that service or erase existing identifiers. The EFF's VPN guidance helps separate realistic benefits from exaggerated marketing claims.

The VPN tunnel and HTTPS also have different endpoints. TLS protects the HTTPS connection to the service; keep using HTTPS even with a VPN. Do not interpret the tunnel as end-to-end protection for everything that happens after traffic leaves it.

Our IP display checks the request that reaches this site. It is not a comprehensive DNS, WebRTC, IPv6 or kill-switch leak test. Before choosing a service, read the disclosures and limitations on our VPN comparison page; this explanatory guide does not award a provider a test score.