Active Incident
Confirmed: network disruption in Tanzania
Tanzania · January 8, 2026 · 51 days
IODA detected significant connectivity drop. 2 critical alerts recorded. CenAlert confirms censorship activity.
Evidence
4%
Anomaly Rate
9
Measurements
70%
Confidence
What This Means
4% of tests showed anomalies, above the typical 1-3% baseline. This suggests potential network interference.
How We Detected This
Data Sourcecensoredplanet + ioda
ML ModelGradientBoosting v3.3 (LOCO median F1 0.87, honest across 127 countries)
Confidence Score70% certainty of censorship
Detection TimeJanuary 8, 2026
Corroborating Evidence (50)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
IODAInternet Outage Detection & Analysis48 records
outage
"IODA detected critical level outage for Dodoma"— IODA report
Signal value: 0.04
Mar 1, 2026
View source →outage
"IODA detected critical level outage for Pwani"— IODA report
Signal value: 0.02
Feb 25, 2026
View source →outage
"IODA detected critical level outage for Pwani"— IODA report
Signal value: 0.02
Feb 22, 2026
View source →outage
"IODA detected critical level outage for Dar-Es-Salaam"— IODA report
Signal value: 0.01
Feb 22, 2026
View source →outage
"IODA detected critical level outage for Dodoma"— IODA report
Signal value: 0.04
Feb 20, 2026
View source →+ 43 more IODA records
Censored PlanetUniversity of Michigan research2 records
http-blocking-timeout
"HTTPS blocking (timeout): 3/3 probes blocked (100.0%) for twitter.com"— Censored Planet report
Signal value: 1.00
Mar 1, 2026
View source →http-blocking-timeout
"HTTPS blocking (timeout): 7/11 probes blocked (63.6%) for twitter.com"— Censored Planet report
Signal value: 0.64
Feb 20, 2026
View source →Affected Services (2)
Twitter/XX
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.
Cite This Incident
Voidly Research. (2026). Confirmed: network disruption in Tanzania [TZ-2026-0003]. Voidly Global Censorship Index. https://voidly.ai/incident/TZ-2026-0003