TCP/IP-stack OS kernel contradicts the OS the User-Agent claims
net.tcp_os_vs_ua · convicts
networklayer
coherencecategory
19evaders caught
What it catches
p0f-style SYN fingerprint; the kernel a stack reveals can't be changed by a UA spoof (Android→linux, iOS→darwin)
Signals it reads
network.tcp_kernel network.ua_kernel
How it fires
not_equal
Evaders it caught 19
Bypassed by 10
Frontier evaders that reach the detector uncaught (scored only suspicious, defeating every convicting tell) — this check is not one that stops them. The red-team frontier this detection still has to convict.