COLITU LABProbes starting

TCP (encrypted)

Shadowsocks

A stream encrypted from the first byte (Shadowsocks 2022), with no visible handshake. Every byte on the wire is random-looking; there is no protocol to recognise.

Where it does well

Light and fast where nothing inspects traffic.

Where it struggles

“Looks like nothing” is itself a pattern: detectors that flag fully random traffic catch it, and some networks block it on sight.

CSVJSONAPI
Success, 7 days—Not enough data
Tunnel tests00 vantage points
Median time to first answer—successful tests only
Server locations0tested

Shadowsocks over time

All vantage points and servers.

No tunnel tests in this window yet.

By network

Where the test ran from.

No tests in this window.

By server location

Where the server was. A location that fails from every network points at the server, not at censorship.

No tests in this window.

Compared with the other transports

Same window, same vantage points.

Open in Compare

No tunnel tests in this window yet.