Active Incident
Internet outage in Iran
Iran · June 11, 2026 · 12 hours
IODA detected significant connectivity drop in Iran. 1 critical alerts recorded. CenAlert confirms censorship activity.
Evidence
23%
Anomaly Rate
1
Measurements
65%
Confidence
What This Means
23% 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 Score65% certainty of censorship
Detection TimeJune 11, 2026
Corroborating Evidence (6)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
IODAInternet Outage Detection & Analysis2 records
outage
"IODA detected critical level outage for Golestan"— IODA report
Signal value: 0.52
Jun 11, 2026
View source →outage
"IODA detected critical level outage for West Azarbaijan"— IODA report
Signal value: 0.23
Jun 11, 2026
View source →Censored PlanetUniversity of Michigan research4 records
http-blocking-tcp-reset
"HTTP blocking (tcp-reset): 3/6 probes blocked (50.0%) for bbc.com"— Censored Planet report
Signal value: 0.50
Jun 11, 2026
View source →http-blocking-tcp-reset
"HTTP blocking (tcp-reset): 3/6 probes blocked (50.0%) for facebook.com"— Censored Planet report
Signal value: 0.50
Jun 11, 2026
View source →http-blocking-timeout
"HTTP blocking (timeout): 3/5 probes blocked (60.0%) for psiphon.ca"— Censored Planet report
Signal value: 0.60
Jun 11, 2026
View source →http-blocking-tcp-reset
"HTTP blocking (tcp-reset): 3/5 probes blocked (60.0%) for signal.org"— Censored Planet report
Signal value: 0.60
Jun 11, 2026
View source →Affected Services (4)
BBCFacebookPsiphonSignal
Blocked Domains (4)
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 Iran [IR-2026-0265]. Voidly Global Censorship Index. https://voidly.ai/incident/IR-2026-0265
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