An IP address is a unique numerical label assigned to every device connected to a computer network that uses the Internet Protocol for communication. It serves as the device identifier that allows data to be routed to the correct destination.
Every device on the internet has an IP address assigned by its network provider. When you visit a website, your device sends packets tagged with your IP address as the source and the server IP as the destination. Routers use these addresses to direct packets across networks. IP addresses come in two versions: IPv4 (e.g., 192.168.1.1) and IPv6 (e.g., 2001:db8::1).
Most proxy users only need to understand this well enough to debug it, not configure it directly.
USER-country-de-session-task01The username carries the config: "country-de" picks the exit, "session-task01" holds it in place while IP Address does its work underneath. No separate API call or handshake -- the label is the setting.
Measure this metric without a proxy first, so you know what the gateway adds versus what was already there.
This concept governs the connection to the gateway and the gateway to the target -- check both when something looks wrong.
KnoxProxy manages this at the infrastructure layer, so most jobs only need to understand it well enough to debug.
A new ISP, VPN, or office network can change how this behaves -- confirm it again after any local network change.
When you connect to Wi-Fi at a coffee shop, your laptop receives the IP address 203.0.113.45, which every website you visit can see as the source of your requests.
Your IP address is the primary identifier websites use to determine your location and track your activity. Proxies work by replacing your real IP with a different one.
Yes. Devices behind NAT (like a home router) share the same public IP address. The router tracks which internal device made each request using port numbers.
Most consumer ISPs assign dynamic IPs that change periodically. Business connections often have static IPs that remain fixed. Your IP also changes when you switch networks.
A website can determine your approximate location (city/region), ISP name, ASN, and whether your IP belongs to a datacenter or residential network. It cannot determine your exact street address.
Ready to put this into practice? Check Your IP Address
Start a free trial and test with real targets -- no credit card, no sales call.