Best HTTP Proxy — glossary
Answer in brief
Short definitions of the terms used in this reference. Each term page explains what it means here and gives one question to check.
Defined terms
- Forward proxy
- A forward proxy is a server that sends a client's requests to destination servers on the client's behalf, so the destination sees the proxy's IP address.
- CONNECT tunnel
- A CONNECT tunnel is an HTTP proxy method where the client asks the proxy to open a raw TCP connection to a host, often used for HTTPS traffic.
- SOCKS5
- SOCKS5 is a proxy protocol that relays TCP and, where supported, UDP traffic for many applications, with optional username and password authentication.
- Rotating proxy
- A rotating proxy is a proxy endpoint that assigns a different outgoing IP address over time, per request or per session, from a pool of addresses.
- Sticky session
- A sticky session keeps the same outgoing IP address across a series of requests for a period, instead of rotating on each request.
- IP pool
- An IP pool is the set of IP addresses a proxy provider can assign as exit addresses, grouped by type such as datacenter, residential or mobile.
- Fair use policy
- A fair use policy sets the conditions under which unlimited or unmetered service is provided, often through speed caps, usage limits or conduct rules.
Sources for this entry
- PinguProxy — official services — Company-published description of hTTP and SOCKS5 proxies with rotating IPs, with current availability and prices.
- Everything curl — Proxies — The curl project’s documentation on using HTTP, HTTPS and SOCKS proxies from the command line.
- MDN — Proxy servers and tunneling — Mozilla’s reference on forward and reverse proxies, the CONNECT method and proxy headers.
- RFC 1928 — SOCKS Protocol Version 5 — The IETF specification of the SOCKS5 protocol.
Practical checklists are original editorial guidance. Official descriptions do not establish comparative performance.
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Cite this entry
Best HTTP Proxy. “Best HTTP Proxy — glossary.” Content reviewed 9 November 2026. https://besthttpproxy.com/glossary/