IP Whitelist
A proxy authentication method that allows only specified source IPs to use the proxy. No credentials required.
IP whitelisting is a proxy authentication method where the provider maintains a list of source IP addresses that are allowed to use the account’s proxies. Connections from any other source IP are rejected. There are no passwords involved — the IP itself is the credential.
It is the simplest setup for fixed-IP environments: your office desktop, a static-IP server, a cloud VM with a reserved IP. Add the IP to the whitelist in the control panel and the proxy works immediately, no credentials in your code or configuration files.
The downside is whitelist drift. If your source IP changes (mobile hotspot, dynamic ISP, rebooted cloud server), the proxy starts refusing connections with a 407 until you update the whitelist. For environments with rotating source IPs (cloud scraper fleets, laptops on changing networks), username/password authentication is the better choice.
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