ProxyHorizon Glossary
The Proxy & Networking Glossary
Plain-language definitions of the proxy, VPN, scraping and networking terms you'll run into — explained simply, with examples and use cases.
88 terms and counting
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Plain-language definitions of the proxy, VPN, scraping and networking terms you'll run into — explained simply, with examples and use cases.
88 terms and counting
A CDN is a network of servers spread across the globe that stores copies of website content close to users for faster loading. It also protects sites by absorbing traffic spikes and filtering malicious requests.
CGNAT is a technique carriers use to share one public IP among many customers — which is exactly why mobile proxy IPs are so trusted and hard to block.
IP reputation is a trust score that websites and security systems assign to an IP address based on its past behavior. A clean IP is trusted, while a flagged one may be blocked or challenged.
IP whitelisting is a security method that only lets pre-approved IP addresses connect to a service, blocking everyone else by default.
IPv4 is the fourth and most widely used version of the Internet Protocol, giving every connected device a numeric address like 192.168.1.1. It supports about 4.3 billion unique addresses.
IPv6 is the newest version of the Internet Protocol, created to replace IPv4 because the world ran out of addresses. It offers a virtually unlimited supply of unique IP addresses.
A port number is a numeric label that directs network traffic to the right program on a device. Combined with an IP address, it tells data exactly where to go.
Proxy authentication is the process of proving you are allowed to use a proxy, usually with a username and password or by approving your IP address in advance.
A proxy server is an intermediary computer that sits between your device and the internet, forwarding your requests so that websites see the proxy's IP address instead of your own.