Most people lock their phones. They set strong passwords and use two-factor authentication. Yet one piece of identifying information travels with every request they make online — completely unprotected.
What an IP Address Actually Is
A device on the internet is given an IP address, which is a number that lets other devices on the network know what it is. It’s kind of like a postal address. The data packets would have nowhere to go or come back to without it.
Currently, two principal kinds are available. Internet Protocol Version 4 addresses, such as 192.168.1.1, are 32 bits long and denoted using dotted decimal notation. The 128-bit format (2001: 0db8: 85a3: 8a2e: 0370: 7334) works with a wide range of devices. Current IPv6 implementations make use of this encoding. Despite IPv6’s availability, IPv4 is currently the de facto standard for most Internet connections.
Your ISP may issue you a different IP address each time you sign up for a new service; this is referred to be “dynamic.” A static IP address is one that doesn’t change for any of your linked devices. Home broadband users are typically assigned dynamic addresses, though the address rarely changes in practice.
How Much It Reveals
The IP address is merely a number. But the data behind that number — via public WHOIS databases, geolocation services and ISP records — can be surprisingly rich. Typically, a website that receives your request may tell what your approximate physical location is (often to the city), what your Internet service provider is, what organization or institution you belong to if you are on a business or university network, and what type of connection you generally have.
Why is this important? Well, every HTTP request you make has your IP address in the header . All the websites you visit are logged. Every ad network tracks them all. Over time, your IP becomes a common denominator advertising platforms, data brokers, and analytics services use to develop behavioral profiles – without cookies, even across browsers on the same device.
A less evident kind of discrimination made possible by IP-based geolocation is geo-blocking. Streaming services are constrained by libraries in their own location. News sites have paywalls in various countries and software is priced differently by market. It’s all enforced at the IP level. A VPN like Planet VPN replaces your real IP with a server address, bypassing these restrictions.
Apple Has Already Acknowledged the Problem
iCloud Private Relay was developed by Apple and included with iOS 15 and macOS Monterey. When their IP address is revealed to the world, most individuals get nervous. That is seen by this function. With Private Relay, Safari data goes through two Internet relays. One is an Apple server that hides your IP address, and the other is a third-party relay that provides a temporary IP address before sending the request to the intended website. Neither relay sees both who you are and where you’re going — a principle Apple calls dual-hop architecture.
It’s a meaningful step. But Private Relay only covers Safari traffic, only works on supported Apple hardware, and requires an active iCloud+ subscription. It also doesn’t function in all countries, and it does not mask your IP from Apple itself — only from destination sites and network observers.
| ▶ WATCH: Change IP Address in 2 Clicks! — Fast & Free VPN 2026 A practical walkthrough on masking your IP address — from the Planet VPN YouTube channel. |
When IP Masking Actually Matters
Not every connection requires strong IP privacy. Checking the weather or loading a recipe involves little risk. But several situations meaningfully increase your exposure: connecting to public Wi-Fi in airports, hotels, or cafes; using research tools or journalism platforms where source confidentiality matters; accessing work resources on personal devices; or traveling internationally where your home IP may cause access issues with banking or subscription services.
In these contexts, tools that route your traffic through a separate server — assigning you a different IP address at the destination — provide a concrete privacy benefit. The practical result is simple : The destination site sees the server IP , not yours . Your ISP can see that you connected to that server, but not what sites you accessed through it.
It extends the functionality of iCloud Private Relay for iPhone and Mac users, and covers apps and other traffic in situations when iCloud+ isn’t available or sufficient.
A Small Number, a Significant Footprint
The IP address is rarely discussed in the same breath as passwords or biometrics. It requires no theft, no phishing, and no breach — it is simply handed over with every connection. What makes it worth understanding is not any single risk it creates, but the quiet consistency with which it enables tracking, profiling, and geographic restriction.
Security awareness tends to focus on things that can be stolen. The IP address is different: it’s information that is routinely given away, by design, by every device on the internet. Understanding that doesn’t require changing everything about how you use the web — but it does change what you notice when you start looking.
