Active Incident
Sustained censorship in Algeria (2026-04)
Algeria · April 14, 2026 · 13 days
OONI detected 4 days of elevated network interference averaging 50.0% anomaly rate.
Evidence
50%
Anomaly Rate
4
Measurements
69%
Confidence
What This Means
50% of tests showed anomalies, above the typical 1-3% baseline. This suggests potential network interference.
How We Detected This
Data Sourceooni
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score69% certainty of censorship
Detection TimeApril 14, 2026
Corroborating Evidence (4)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
OONIOpen Observatory of Network Interference4 records
blocking
"OONI signal: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
Apr 27, 2026
View source →blocking
"OONI facebook_messenger: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
Apr 27, 2026
View source →block
"OONI web_connectivity for claude.ai: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
Apr 19, 2026
View source →header-manipulation
"OONI http_header_field_manipulation: 4/8 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
Apr 14, 2026
View source →Affected Services (3)
ClaudeFacebook MessengerSignal
Blocked Domains (1)
Click any domain to view raw OONI measurements
What we cannot say
- Who caused it — measurement data alone does not attribute this to any government, ISP, or other actor.
- Intent — anomalous or unreachable measurements indicate interference, not a stated motive or a deliberate-vs-incidental determination.
- Which networks — no specific ASN/ISP is identified for this incident.
- The mechanism — we cannot state whether this was DNS tampering, TLS/SNI reset, an HTTP blockpage, throttling, or an infrastructure outage.
- Sub-national scope — measurement is aggregated at the country level; we cannot localize to a province, city, or network segment.
- Independent corroboration — this rests on a single source; treat it as a single-source signal, not a multi-source confirmation.
Cite This Incident
Voidly Research. (2026). Sustained censorship in Algeria (2026-04) [DZ-2026-0113]. Voidly Global Censorship Index. https://voidly.ai/incident/DZ-2026-0113
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