Authentication
Everything tagged Authentication.
4 articles
Topic Authentication
Tutorial
cURL basic auth: -u, headers and proxy authentication
How to send a username and password with curl: -u for the site, -U for a proxy, Digest, keeping passwords out of history, and which login a proxy can read.
October 11, 2026 · 5 min read
Explainer
IP whitelisting for proxies: what it is and how to set it up
What IP whitelisting means for a proxy, which public address the proxy checks, why NAT and IPv6 break it, and what a miss returns. Tested on October 10, 2026.
October 10, 2026 · 13 min read
Tutorial
When Your Proxy Needs a Password and Your Software Can't Send One
Windows has no proxy password field, Chrome ignores a login written into its flag, and some apps only take proxies without one. Four fixes that work, from an address allowlist to a relay on 127.0.0.1.
August 8, 2026 · 9 min read
Tutorial
IP, Port, Username, Password: What Your Proxy Line Actually Means
Someone handed you 198.51.100.7:8080:hp_ir4k2:9fa2c1 and no instructions. The four parts, the three ways the same proxy is written, which shape each tool wants, and the password characters that break it.
August 8, 2026 · 13 min read
Proxies that don't die mid-job
Residential, ISP, datacenter and mobile, verified by the same engine that runs tens of millions of checks. They read as a real device and hold up under load. Pay as you go, and your balance never expires. $0.44/GB is the 2,000 GB+ rate; a single gigabyte is $0.50/GB, with no minimum order.
129M+ proxy checks run · 100+ countries · HTTP / HTTPS / SOCKS · re-checked every few minutes · no signup
HProxy.
Honest guides and comparisons on proxies, scraping and staying unblocked, from the team that runs the network.