What is an IP address, and what does it reveal about you?

Every time you go online, your device carries an address — a public IP address that identifies you on the internet. It’s how data finds its way back to you, but it’s also a quiet source of information about where you are and who your provider is. Here’s what an IP address actually is, what it gives away, and how a VPN hides it.

What an IP address actually is

IP stands for Internet Protocol. An IP address is a unique numeric label assigned to your device on a network — the internet’s version of a return address on an envelope. When you request a web page, that request carries your IP so the response knows where to come back to. No IP, no delivery.

You’ll see two formats:

• IPv4 — the classic form, four numbers separated by dots, like 203.0.113.7. There are a limited number of these, and the world has largely run out.
• IPv6 — the newer, much larger format, written as longer groups of hexadecimal characters. It exists precisely because we needed vastly more addresses for the billions of connected devices.

Both do the same job: uniquely identify your device so traffic can be routed to it.

Public vs private: two different IPs

People often conflate two separate addresses:

• Your private IP works inside your home or office network. It’s how your router tells your laptop apart from your phone or your smart TV. It’s not visible to the outside world.
• Your public IP is the single address your router presents to the wider internet. This is the one every website, app and server actually sees.

When we talk about hiding your IP, we mean the public one — the address the outside world uses to see you.

What your IP reveals about you

Here’s why it matters. Your public IP is visible to every site and service you connect to, and it leaks more than a random string of numbers suggests:

• Your approximate location. IP addresses map to geographic regions, so a website can usually tell your city or region (not your exact street address, but close enough for geo-blocking, ad targeting and rough profiling).
• Your ISP. The IP reveals which internet provider you’re using — and your ISP, in turn, can link that exact IP directly to you, the account holder, at a specific time.
• A tracking handle. Advertisers and data brokers use your IP as one signal, alongside cookies and device fingerprints, to follow you across sites and build a profile.

Think of your IP like the return address on every letter you mail. You need it there for replies to reach you — but it also tells every recipient roughly where you live and which post office serves you. Most of the time you don’t think about it; that doesn’t mean nobody’s reading it.

Static vs dynamic — a quick note

Some connections have a static IP that stays the same, while most home users get a dynamic IP that changes periodically. Dynamic IPs offer a little natural churn, but not real privacy: at any given moment your current IP still points back to your ISP account, and your ISP keeps the records that tie the two together.

How a VPN hides your IP

This is the core job of a VPN. Instead of connecting directly to a website — which would expose your real public IP — your traffic first travels through an encrypted tunnel to a VPN server. That server then makes the request on your behalf.

The result: the website sees the VPN server’s IP address, not yours. Two things follow:

1. Your location changes. Sites see the server’s location, not your real one — which is what lets you appear to browse from another city or country.
2. Your activity is separated from your real address. Because the server’s IP is typically shared among many users at once, your individual activity is far harder to single out and tie back to you personally.

Your real IP stays hidden behind the tunnel. To your ISP, all they see is encrypted traffic heading to a VPN server — not the sites beyond it. For a step-by-step walkthrough, see how to hide your IP address.

The catch: leaks can expose your real IP

Here’s the part many people miss. A VPN only hides your IP if there are no leaks. Two common ones:

• WebRTC leaks. A browser feature meant for video calls can accidentally reveal your real IP even while a VPN is active. We cover this in detail in what is a WebRTC leak?.
• DNS leaks. If your DNS lookups slip outside the tunnel to your ISP’s resolver, they can expose your activity — and sometimes your real address. Encrypted DNS closes this gap; see our DNS-over-HTTPS explainer.

A VPN that masks your IP but leaks it through a side channel isn’t really hiding you at all. Real IP protection means sealing every one of these paths.

How Veilock protects your IP

Veilock is built to make IP masking hold up under scrutiny:

• Shared server IPs. Your real public IP is replaced by a Veilock server’s shared address, blending your activity in with many other users’.
• Leak protection. Forced DNS-over-HTTPS resolution keeps lookups inside the tunnel, and a kill switch blocks traffic if the connection drops — so your real IP never slips out during a reconnect.
• No logs. Under Veilock’s strict no-logs policy, the connection isn’t recorded, so there’s no history tying a server session back to your real IP.

See the whole picture on the Veilock VPN overview.

The bottom line

Your IP address is your device’s public identity — necessary for the internet to work, but revealing enough to give away your location, your ISP and a handle for tracking you. A VPN hides it by routing your traffic through a server whose shared IP the world sees instead of yours. But masking only counts if it’s leak-proof: WebRTC and DNS leaks can undo it in an instant. Veilock hides your IP behind shared servers and seals the leak paths with encrypted DNS, a kill switch and a no-logs policy — so what the internet sees is the server, never you.