Active Incident
Internet outage in Azerbaijan
Azerbaijan · May 31, 2026 · 2 hours
IODA detected significant connectivity drop in Azerbaijan. 3 critical alerts recorded. CenAlert confirms censorship activity.
Evidence
24%
Anomaly Rate
3
Measurements
67%
Confidence
What This Means
24% of tests showed anomalies, above the typical 1-3% baseline. This suggests potential network interference.
How We Detected This
Data Sourceioda + censoredplanet
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score67% certainty of censorship
Detection TimeMay 31, 2026
Corroborating Evidence (13)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
IODAInternet Outage Detection & Analysis3 records
outage
"IODA detected critical level outage for Sumqayıt"— IODA report
Signal value: 0.21
May 31, 2026
View source →outage
"IODA detected critical level outage for Sumqayıt"— IODA report
Signal value: 0.25
May 31, 2026
View source →outage
"IODA detected critical level outage for Sumqayıt"— IODA report
Signal value: 0.25
May 31, 2026
View source →Censored PlanetUniversity of Michigan research10 records
dns-blocking
"DNS blocking detected: 2/2 probes anomalous (100.0%) for bbc.com"— Censored Planet report
Signal value: 1.00
May 31, 2026
View source →dns-blocking
"DNS blocking detected: 2/2 probes anomalous (100.0%) for getlantern.org"— Censored Planet report
Signal value: 1.00
May 31, 2026
View source →dns-blocking
"DNS blocking detected: 2/2 probes anomalous (100.0%) for huggingface.co"— Censored Planet report
Signal value: 1.00
May 31, 2026
View source →dns-blocking
"DNS blocking detected: 2/2 probes anomalous (100.0%) for nytimes.com"— Censored Planet report
Signal value: 1.00
May 31, 2026
View source →dns-blocking
"DNS blocking detected: 2/2 probes anomalous (100.0%) for openai.com"— Censored Planet report
Signal value: 1.00
May 31, 2026
View source →+ 5 more Censored Planet records
Affected Services (8)
BBCLanternNew York TimesProton VPNProtonVPNPsiphonSignalThe Guardian
Blocked Domains (10)
bbc.comgetlantern.orghuggingface.conytimes.comopenai.comprotonvpn.compsiphon.casignal.orgsubstack.comtheguardian.com
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.
Cite This Incident
Voidly Research. (2026). Internet outage in Azerbaijan [AZ-2026-0178]. Voidly Global Censorship Index. https://voidly.ai/incident/AZ-2026-0178
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