Your guide to the Internet censorship detection
When you are lost in the darkness, look for the light
By hardware location
ISP Incoming Traffic Filtering Filters content within the ISP network itself
ISP Inner Filtering Filters content within the ISP's internal network
State-Level Filtering Government filters traffic at a national level
Transit ISP Filtering Filters traffic at upstream providers, affecting multiple ISPs
By method
DNS Hijacking Redirects DNS queries to incorrect IP addresses
DPI Application Filtering Blocks certain applications by analyzing traffic patterns
DPI Protocol Filtering Blocks specific protocols using Deep Packet Inspection
HTTPS SNI Filtering Blocks domains based on the SNI in TLS handshakes
IP Blackhole/Redirection Blocks traffic to specific IPs, making them unreachable
Throttling Intentionally slows down internet speeds