Topic Protocols
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 10 October 2026.
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 10 October 2026.
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 10 October 2026.
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.
HTTP vs HTTPS Proxy: The Difference Is the First Hop
HTTP vs HTTPS proxy explained: an HTTPS proxy is not a proxy for HTTPS sites, it is a proxy you reach over TLS. What CONNECT tunneling does, what stays exposed, and when it matters.
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.
HTTP vs SOCKS5 Proxy: Which Should You Use?
HTTP vs SOCKS5 proxy, explained without the marketing: what each protocol does, which layer it works at, how they handle DNS and speed, and which to use.
What Is a SOCKS5 Proxy? A Plain-English Guide With the Details Kept In
What is a SOCKS5 proxy? How the protocol works, what it does that HTTP proxies can't, remote DNS, UDP support, and when a SOCKS5 proxy is the right choice.
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