In a chain, your client connects to the first proxy, which connects to the second, and so on; only the last one talks to the website. The target sees the last proxy's address, the exit node, and nothing earlier.

Where chains come up

  • Corporate networks. Outbound traffic must pass the company proxy first, so your commercial proxy becomes the "upstream" behind it.
  • Local proxy managers. A tool on your machine accepts connections without credentials and forwards them to a paid proxy that needs them. See proxy manager.
  • Privacy tooling. Linux users chain proxies with proxychains-ng, which reads a list like this:
strict_chain
proxy_dns

[ProxyList]
http    10.0.0.5  3128
socks5  HOST      PORT  USERNAME  PASSWORD

Proxifier on Windows and macOS builds chains in its interface; see the Proxifier guide.

What a chain costs

Every hop adds round trips, so latency grows with each link, and any hop failing breaks the whole route. If more than one hop is a paid per-GB proxy, each bills for the same traffic. Debugging gets harder too: an error could come from any hop, so test each one on its own first.

Common confusion

Chaining does not make you harder to detect. The website still sees one exit IP with its own reputation, and your client's TLS fingerprint passes through every hop unchanged. Chains solve routing and trust problems, not blocking problems.