Voidly / Censorship glossary
Know
the block.
Understand the technique.
Read the evidence clearly.
These definitions are stable references used across our incident reports and methodology.
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examples and source titles.
9 terms to explore
DNS Blocking
Manipulation of DNS responses to prevent domain resolution.
SNI Filtering
Blocking HTTPS connections by inspecting the Server Name Indication field.
HTTP Blocking
Intercepting and blocking unencrypted HTTP requests based on content.
IP Blocking
Blocking all traffic to specific IP addresses regardless of protocol.
Throttling
Deliberately degrading connection speed to specific services.
Network Shutdown
Complete or near-complete disconnection of internet access in a region.
Platform Block
Blocking access to a specific online platform or service.
Collateral Damage
Unintended blocking of legitimate services due to censorship techniques.
Deep Packet Inspection
Network equipment that examines packet contents beyond headers.
About the original bypass labels
The published index uses brief difficulty labels. They are retained below as original editorial shorthand, not a guarantee about any network or a current product capability.
- DNS Blocking
- Easy to bypass
- SNI Filtering
- Moderate to bypass
- HTTP Blocking
- Easy to bypass
- IP Blocking
- Hard to bypass
- Throttling
- Moderate to bypass
- Network Shutdown
- Impossible to bypass
- Platform Block
- Moderate to bypass
- Collateral Damage
- N/A
- Deep Packet Inspection
- Hard to bypass
Put the terms to work
Go to the evidence.
A definition names a technique. A claim still needs a source.