IP Whitelisting
A security method that only lets pre-approved IP addresses connect to a service, blocking everyone else by default.
Full Definition
IP whitelisting is an access-control mechanism where a system maintains a list of trusted IP addresses and accepts connections only from those addresses. All others are denied. It is commonly used to restrict access to proxy provider dashboards, API endpoints, and admin panels. Most proxy providers support two authentication methods: username/password credentials or IP whitelisting (where you add your server's IP and authenticate without credentials). IP whitelisting is more secure because there are no credentials to leak, but it requires a static IP on the client side — a problem if your scraping infrastructure uses dynamic IPs.
