Terminology Glossary

Navigating the world of IP intelligence involves encountering a variety of technical terms. This glossary provides simple, clear definitions for the concepts you will encounter most frequently.

Infrastructure & Networking

ASN (Autonomous System Number)

A unique identifier assigned to a group of IP networks (an Autonomous System) that are managed by a single organization, like an ISP or large corporation. It is essentially the "routing neighborhood" of an IP.

ISP (Internet Service Provider)

A company that provides individuals and organizations with access to the internet, such as Comcast, AT&T, or Verizon. ISPs are the primary entities that assign IP addresses to end-users.

CIDR (Classless Inter-Domain Routing)

A method for allocating IP addresses and IP routing. You will often see this written as an IP followed by a slash and a number (e.g., 192.168.0.0/24), which defines the size of the network block.

Connectivity & Security

Egress Node

The final point in a VPN or proxy chain where your traffic "exits" the network and connects to the destination website. The website sees the IP address of the egress node, not your actual home IP.

Data Center IP

IP addresses registered to server hosting companies (like AWS or DigitalOcean) rather than residential ISPs. These are frequently used by bots, scrapers, and VPN services.

Proxy / VPN

Services that act as an intermediary between your device and the internet. They mask your original IP address, making it appear as though your connection is coming from a different location.

Performance

Latency

The time delay between a user's request and the server's response. It is often measured in milliseconds and is heavily dependent on the physical distance between the user and the server.

CDN (Content Delivery Network)

A geographically distributed network of servers designed to store cached content closer to users, reducing latency and improving site load speeds.