Protocols
Everything tagged Protocols.
8 articles
Topic Protocols
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
Explainer
SOCKS5 UDP explained: how UDP ASSOCIATE works and which proxies support it
How a SOCKS5 proxy relays UDP with UDP ASSOCIATE, byte by byte, and how many proxies really do it: 17 of 575 public SOCKS5 proxies on October 10, 2026.
October 10, 2026 · 10 min read
Explainer
TCP vs UDP for proxies: which apps need UDP and which proxies carry it
TCP vs UDP explained with one DNS lookup sent both ways and measured, which apps really need UDP, and which proxy types carry each. Tested on October 10, 2026.
October 10, 2026 · 8 min read
Explainer
What is a proxy hostname? Host, port and how to find yours
A proxy hostname is the name of the proxy server you connect to. How DNS turns it into an address, which name goes where, and what Android's field accepts.
October 10, 2026 · 10 min read
Explainer
HTTP vs HTTPS Proxy: The Difference Is the First Hop
HTTP vs HTTPS proxy explained: an HTTPS proxy is one you reach over TLS, and both kinds carry HTTPS sites. What CONNECT does, what each hop can read, and browser support.
July 18, 2026 · 7 min read
Explainer
SOCKS4 vs SOCKS5: the difference, measured on the wire
SOCKS4 vs SOCKS5 from the RFCs, then tested: who resolves DNS, what 80 public proxies really do with IPv6 and UDP, and which version to pick.
July 17, 2026 · 16 min read
Explainer
HTTP vs SOCKS5 Proxy: What Changes on the Wire, Measured
HTTP vs SOCKS5 proxy, measured with curl: round trips and bytes before the first byte of the site, who resolves DNS, UDP, the login, and which one to use.
July 3, 2026 · 7 min read
Explainer
What Is a SOCKS5 Proxy? A Plain-English Guide With the Details Kept In
A SOCKS5 proxy relays any TCP connection without reading it. How it works, what five common clients send to one, and what free SOCKS5 proxies really do.
July 2, 2026 · 10 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.