Key Takeaway (TL;DR): Born out of intense censorship environments in Iran, Hiddify implements advanced circumvention mechanisms like TLS Client Hello fragmentation. By splitting initial TLS negotiation payloads into fragmented TCP packets across out-of-order sequences, it overwhelms hardware DPI inspectors that lack buffering capacity to reconstruct the stream.
1. Client Hello Fragmentation
Fragmenting SNI signatures across sub-packet boundaries prevents network firewalls from matching prohibited hostnames in real-time.