Active Incident
Confirmed: ukraine invasion - mass blocks
Russia · February 21, 2022 · 316 days
OONI detected censorship pattern in Russia. Ukraine invasion - mass blocks. Anomaly rate: 72.7%
Evidence
96%
Anomaly Rate
244,804
Measurements
95%
Confidence
What This Means
96% of 244,804 network tests from Russia failed to reach these services. Global baseline failure rate is typically 1-3%. This 93+ percentage point difference strongly indicates intentional blocking.
How We Detected This
Data Sourceooni
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score95% certainty of censorship
Detection TimeFebruary 21, 2022
Corroborating Evidence (628)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
OONIOpen Observatory of Network Interference628 records
block
"Ukraine invasion - mass blocks"— OONI report
Signal value: 0.88
Jan 3, 2023
View source →block
"Ukraine invasion - mass blocks"— OONI report
Signal value: 0.93
Jan 2, 2023
View source →block
"Ukraine invasion - mass blocks"— OONI report
Signal value: 0.91
Jan 1, 2023
View source →block
"Ukraine invasion - mass blocks"— OONI report
Signal value: 0.93
Dec 31, 2022
View source →interference
"Web connectivity anomalies detected. 575 measurements with 92.9% anomaly rate."— OONI report
Signal value: 0.93
Dec 31, 2022
View source →+ 623 more OONI records
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. (2022). Confirmed: ukraine invasion - mass blocks [RU-2022-0001]. Voidly Global Censorship Index. https://voidly.ai/incident/RU-2022-0001
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