What you need to know about IP and Geolocation
What is an IP Address and What is its Function?
An IP (Internet Protocol) address acts as a numerical identity for any device connected to a computer network. Put simply, it functions analogously to a physical mailing address. When data is ingeniously transmitted from one computer to another, the information is divided into small parts called packets. Each packet carries the sender's signature and the recipient's address, ensuring that communication travels through the internet in an organized and efficient manner.
The core of the IP protocol operates without the need for a fixed, pre-established connection. This means the network dynamically searches for the best available path at the moment to deliver each fraction of data, making the internet a flexible environment that is highly resilient to connection failures.
How Does IP Geolocation Work?
Tracking and locating the geographical origin of an IP consists of associating this identification number with real physical data, such as country, state, city, and time zone. This process plays a strategic role on the modern internet, being widely applied in ad targeting, security fraud prevention, language personalization, and compliance with streaming rights restrictions.
Although it is an extremely useful technology, it is worth noting that geolocation does not reveal an individual's exact location at street level, but rather an approximation based on the network of the internet service provider (ISP) responsible for distributing that IP. In urban centers, precision usually reaches neighborhoods or municipalities, while in more isolated regions it may be limited to indicating the state or country.
The Transition from IPv4 to IPv6
The classic structure of the internet was built under the IPv4 protocol, launched in the early 1980s. IPv4 uses a 32-bit standard, which restricts the total number of global connections to approximately 4.3 billion unique addresses. With the proliferation of mobile phones, computers, and smart devices (IoT), this capacity has run out.
To bypass this scarcity, IPv6 emerged. It uses a 128-bit key, expanding the scale of connections to virtually infinite numbers (undecillions of combinations). More than just increasing the quantity of addresses, IPv6 improved the native security of communications with standard support for encryption and simplified network routing processing.
The Relationship of Domains to IP (DNS)
Remembering long sequences of IP numbers would be unfeasible for daily internet use. That's where DNS (Domain Name System) comes in, which works like a digital phone book. It translates user-friendly terms, such as "yourwebsite.com", into the numerical IP address that machines actually need to locate the server.
When you enter a web address in your browser, a request is sent to DNS servers, which locate the number corresponding to that domain in fractions of a second. Once the correct IP is found, the connection is established invisibly to the final user.