Resources

Protocols guides

HTTP, HTTPS tunneling, SOCKS4, and SOCKS5 — when and why to use each.

All articles

Protocols6 min read

How HTTPS works through HTTP proxies via CONNECT, TLS inside tunnels, common SSL errors, and production best practices.

May 25, 2026

Protocols5 min read

SOCKS4 vs SOCKS5 compared: authentication, DNS, UDP support, and how to migrate legacy lists to modern clients.

May 23, 2026

Protocols6 min read

Compare HTTP and SOCKS5 proxies for web scraping and automation — compatibility, performance, and decision criteria.

May 21, 2026

Protocols6 min read

Forward proxies for outbound automation vs reverse proxies for inbound app delivery — roles, stacks, and confusion points.

March 28, 2026

Protocols5 min read

Fix 407 Proxy Authentication Required — Basic auth, NTLM, IP allowlists, and credential debugging.

March 25, 2026

Protocols5 min read

SOCKS5 UDP relay for DNS and datagram protocols — handshake flow and relevance to HTTP-only scrapers.

March 22, 2026

Protocols6 min read

Deep dive into HTTP CONNECT for HTTPS tunneling — request format, status codes, timeouts, and debugging tips.

March 19, 2026

Protocols6 min read

Via, X-Forwarded-For, Proxy-Connection, and Proxy-Authorization headers — what they leak and how targets use them.

March 16, 2026