Techniques

Deep Packet Inspection 178 IP-list blocking 73 TLS ClientHello fingerprinting 64 SNI-based blocking 55 Active probing 50 Keyword filtering 42 TCP RST injection 42 Packet injection (general) 40 ML / statistical classifier 37 Traffic-shape / statistical fingerprinting 36 DNS injection / poisoning 35 QUIC / HTTP/3 blocking 19 Encrypted ClientHello / ESNI blocking 18 Middlebox / TCP normalization 18 Website fingerprinting 15 Fully-encrypted protocol detection 9 Flow-correlation traffic analysis 8 Throttling / bandwidth shaping 7 Port-based blocking 6 ASN / prefix blackholing 4 Random / high-entropy payload detection 3 BGP / route manipulation 2