Active Incident
Sustained censorship in United Kingdom (2026-05)
United Kingdom · May 10, 2026 · Ongoing
OONI detected 3 days of elevated network interference averaging 66.7% anomaly rate.
Evidence
67%
Anomaly Rate
3
Measurements
69%
Confidence
What This Means
67% of 3 network tests from United Kingdom failed to reach these services. Global baseline failure rate is typically 1-3%. This 64+ 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 Score69% certainty of censorship
Detection TimeMay 10, 2026
Corroborating Evidence (3)
Evidence collected from multiple independent sources. Upstream claims shown in quotes are not Voidly assertions.
OONIOpen Observatory of Network Interference3 records
block
"OONI web_connectivity for chatgpt.com: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 19, 2026
View source →block
"OONI web_connectivity for claude.ai: 1/2 measurements anomalous (50.0%)"— OONI report
Signal value: 0.50
May 12, 2026
View source →block
"OONI web_connectivity for chatgpt.com: 1/1 measurements anomalous (100.0%)"— OONI report
Signal value: 1.00
May 10, 2026
View source →Affected Services (2)
ChatGPTClaude
Blocked Domains (2)
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.
- A confirmed duration — we report the observation window, not a verified start/stop of any block.
- 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 United Kingdom (2026-05) [GB-2026-0040]. Voidly Global Censorship Index. https://voidly.ai/incident/GB-2026-0040