voidly
Data

Incident record · China

Internet connectivity disruption in China

Type
disruption
Status
active
Severity
critical
Inspect evidence Cite this incident

Source summary

IODA detected significant connectivity drop in China. 18 critical alerts recorded.

Open incident JSON
Reported anomaly rate
62.3%

Source-defined signal; not a universal test-failure percentage.

Source measurement count
18

The record’s count can represent aggregate inputs or alerts.

Incident confidence
75%

A source score, not certainty of intentional censorship.

Linked evidence has its own count and confidence fields. These quantities are not interchangeable.

Follow the evidence

18 linked records.

Inspect the observation, the upstream claim and why it was linked.

Linked observation dates

18 dated · 0 without a verified timezone
IODA18 linked records
May 3, 2026 · 20:50 UTCSingle observed timestamp

Each point is a linked record. Horizontal position shows observation time; stacking separates nearby points. The full records below provide the values. This is not a measured outage-duration chart.

Upstream claims are attributed to their source. Multiple records or source names do not by themselves establish independent corroboration.

IODA18 records · open evidence

outage · critical

ioda:alert:ping-slash24:region:653:1777841400

IODA detected critical level outage for Shanghai

Upstream claim · IODA
Signal value
0.583575
Signal baseline
196,333
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56052930,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "653",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 196333,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.5835748447790234,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:653:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shanghai",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:634:1777841400

IODA detected critical level outage for Anhui

Upstream claim · IODA
Signal value
0.644951
Signal baseline
307
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053028,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "634",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 307,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6449511400651465,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:634:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Anhui",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:640:1777841400

IODA detected critical level outage for Shaanxi

Upstream claim · IODA
Signal value
0.621681
Signal baseline
2,749
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053044,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "640",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 2749,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6216806111313204,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:640:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Shaanxi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:642:1777841400

IODA detected critical level outage for Hubei

Upstream claim · IODA
Signal value
0.61501
Signal baseline
1,439
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053120,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "642",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 1439,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6150104239054899,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:642:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hubei",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:638:1777841400

IODA detected critical level outage for Hainan

Upstream claim · IODA
Signal value
0.579734
Signal baseline
602
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053206,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "638",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 602,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.579734219269103,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:638:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hainan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:635:1777841400

IODA detected critical level outage for Guangdong

Upstream claim · IODA
Signal value
0.609695
Signal baseline
32,718
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053294,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "635",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 32718,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6096949691301424,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:635:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Guangdong",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:630:1777841400

IODA detected critical level outage for Guizhou

Upstream claim · IODA
Signal value
0.600585
Signal baseline
1,710
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053686,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "630",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 1710,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6005847953216374,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:630:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Guizhou",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:4796:1777841400

IODA detected critical level outage for Unknown Region in China

Upstream claim · IODA
Signal value
0.72973
Signal baseline
74
Evidence confidence
80%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56053778,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "4796",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 74,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.7297297297297297,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:4796:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Unknown Region in China",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:627:1777841400

IODA detected critical level outage for Gansu

Upstream claim · IODA
Signal value
0.661572
Signal baseline
458
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054051,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "627",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 458,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6615720524017468,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:627:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Gansu",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:633:1777841400

IODA detected critical level outage for Fujian

Upstream claim · IODA
Signal value
0.621719
Signal baseline
1,105
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054059,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "633",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 1105,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6217194570135747,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:633:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Fujian",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:643:1777841400

IODA detected critical level outage for Hunan

Upstream claim · IODA
Signal value
0.620507
Signal baseline
1,892
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054127,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "643",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 1892,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.620507399577167,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:643:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hunan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:651:1777841400

IODA detected critical level outage for Jiangxi

Upstream claim · IODA
Signal value
0.629482
Signal baseline
251
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054287,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "651",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 251,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6294820717131474,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:651:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Jiangxi",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:639:1777841400

IODA detected critical level outage for Ningxia

Upstream claim · IODA
Signal value
0.627155
Signal baseline
464
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054355,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "639",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 464,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6271551724137931,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:639:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Ningxia",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:654:1777841400

IODA detected critical level outage for Zhejiang

Upstream claim · IODA
Signal value
0.582963
Signal baseline
23,607
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054461,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "654",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 23607,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.5829626805608505,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:654:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Zhejiang",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:657:1777841400

IODA detected critical level outage for Heilongjiang

Upstream claim · IODA
Signal value
0.687898
Signal baseline
157
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054505,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "657",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 157,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6878980891719745,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:657:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Heilongjiang",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:647:1777841400

IODA detected critical level outage for Henan

Upstream claim · IODA
Signal value
0.592978
Signal baseline
769
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054552,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "647",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 769,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.5929778933680104,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:647:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Henan",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:646:1777841400

IODA detected critical level outage for Hebei

Upstream claim · IODA
Signal value
0.592447
Signal baseline
5,587
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054662,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "646",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 5587,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.5924467513871488,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:646:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Hebei",
  "upstreamSeverity": "critical"
}

outage · critical

ioda:alert:ping-slash24:region:645:1777841400

IODA detected critical level outage for Yunnan

Upstream claim · IODA
Signal value
0.615179
Signal baseline
1,871
Evidence confidence
77%
Link confidence
80%

Why it is linked: Same country and date, critical level IODA alert

Retrieved
2026-05-04 00:00:10.054515 · timezone unspecified
Open upstream source
Complete evidence record
{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.77,
  "continent": "Asia",
  "countryCode": "CN",
  "domain": null,
  "domainCategory": null,
  "id": 56054745,
  "kind": "alert",
  "linkConfidence": 0.8,
  "linkReason": "Same country and date, critical level IODA alert",
  "observedAt": "2026-05-03T20:50:00Z",
  "probeNodeId": null,
  "regionCode": "645",
  "retrievedAt": "2026-05-04T00:00:10.054515",
  "riskTier": 1,
  "signalBaseline": 1871,
  "signalLevel": "critical",
  "signalType": "outage",
  "signalValue": 0.6151790486370925,
  "source": "ioda",
  "sourceRef": "ioda:alert:ping-slash24:region:645:1777841400",
  "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
  "unSubregion": "Eastern Asia",
  "upstreamCause": null,
  "upstreamClaim": "IODA detected critical level outage for Yunnan",
  "upstreamSeverity": "critical"
}
Source-reported corroboration

The source’s corroboration assessment is separate from incident confidence and evidence-link confidence. Inspect its source list, count and description.

{
  "description": "Single source: ioda",
  "evidenceCount": 18,
  "level": "low",
  "score": 0.6,
  "sourceCount": 1,
  "sources": [
    "ioda"
  ]
}

Declared incident sources: IODA.

This record does not list two distinct sources. Treat it as a single-source or uncorroborated record.

Scope and attribution

What the record names.

Methodology

Affected services

No services named.

Incident mechanism

Infrastructure outage

Individual evidence may carry more specific methods. Those do not automatically describe the entire incident.

Affected domains · 0

Domains named by the source record. Each link opens country-specific OONI measurements; a named domain is not a blanket national-block verdict.

No domains named.

Networks and evidence attribution

ASNs named by this source record: None listed.

This aggregate describes fields literally present in linked evidence. It does not identify who caused an event or prove intent.

{
  "asns_attributed": 0,
  "domains_attributed": 0,
  "methods": [
    {
      "evidence_count": 18,
      "method": "outage"
    }
  ],
  "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
  "sources": [
    "ioda"
  ],
  "top_asns": [],
  "top_domains": []
}
What this record cannot establish

Measurements alone do not attribute an event to a government, ISP or another actor, and do not establish intent. An outage or anomalous result can have several explanations.

The country label is an aggregation scope. It is not a census of every network, city or service. Regional or ASN fields belong to their individual source evidence and should not be expanded into a national claim.

A confirmed duration is not supplied. The source observation window and evidence timestamps do not prove an exact start and stop of blocking.

Signal definitions, baseline rates and model versions depend on the source. This record does not establish a common baseline or calibrated certainty. Use the source’s specific signal definition and evaluation before interpreting a score.

Inspect measurement coverage

Cite this incident

Take the record
with you.

Use the permanent published URL.
The original source title is preserved.

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The record over time.

Created
2026-05-04 00:00:11.485768 · timezone unspecified
Last updated
2026-05-04 00:00:11.485768 · timezone unspecified
Revision
1
Revision history and original fields

Revision-history array unavailable.

Canonical ID: CN-2026-0229. Source ID: CN-2026-0229. Hash ID: fc0e8f5470ab.

Additional source duration field: 0 hours. It is retained separately from the minutes field and does not establish a verified event duration.

Complete source JSON
{
  "affectedAsns": [],
  "affectedDomains": [],
  "affectedServices": [],
  "anomalyRate": 0.6231589638653389,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 18,
        "method": "outage"
      }
    ],
    "note": "Aggregated from this incident's linked evidence rows — only domains, ASNs, and blocking methods the evidence literally records are shown, with the per-item evidence count. No per-domain/per-ASN attribution is present in the linked evidence for this incident (e.g. country/ASN-level outage signals).",
    "sources": [
      "ioda"
    ],
    "top_asns": [],
    "top_domains": []
  },
  "confidence": 0.75,
  "corroboration": {
    "description": "Single source: ioda",
    "evidenceCount": 18,
    "level": "low",
    "score": 0.6,
    "sourceCount": 1,
    "sources": [
      "ioda"
    ]
  },
  "country": "CN",
  "countryName": "China",
  "createdAt": "2026-05-04T00:00:11.485768",
  "description": "IODA detected significant connectivity drop in China. 18 critical alerts recorded.",
  "duration": null,
  "durationHours": 0,
  "endTime": null,
  "evidence": [
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56052930,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "653",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 196333,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.5835748447790234,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:653:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Shanghai",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
      "countryCode": "CN",
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      "domainCategory": null,
      "id": 56053028,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "634",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 307,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.6449511400651465,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:634:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Anhui",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56053044,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "640",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
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      "signalLevel": "critical",
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:640:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Shaanxi",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56053120,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "642",
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      "riskTier": 1,
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      "sourceRef": "ioda:alert:ping-slash24:region:642:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Hubei",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
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      "id": 56053206,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "638",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
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      "sourceRef": "ioda:alert:ping-slash24:region:638:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Hainan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
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      "id": 56053294,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
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      "retrievedAt": "2026-05-04T00:00:10.054515",
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      "sourceRef": "ioda:alert:ping-slash24:region:635:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Guangdong",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
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      "id": 56053686,
      "kind": "alert",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
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      "sourceRef": "ioda:alert:ping-slash24:region:630:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
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      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Guizhou",
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    {
      "asn": null,
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      "continent": "Asia",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
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      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Unknown Region in China",
      "upstreamSeverity": "critical"
    },
    {
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      "continent": "Asia",
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      "id": 56054051,
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
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      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
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      "upstreamClaim": "IODA detected critical level outage for Gansu",
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    {
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      "linkReason": "Same country and date, critical level IODA alert",
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      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
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      "upstreamClaim": "IODA detected critical level outage for Fujian",
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    {
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      "continent": "Asia",
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
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      "sourceRef": "ioda:alert:ping-slash24:region:643:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Hunan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
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      "id": 56054287,
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      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
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      "sourceRef": "ioda:alert:ping-slash24:region:651:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Jiangxi",
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    },
    {
      "asn": null,
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      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56054355,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "639",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 464,
      "signalLevel": "critical",
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      "signalValue": 0.6271551724137931,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:639:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Ningxia",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56054461,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "654",
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      "signalLevel": "critical",
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      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:654:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Zhejiang",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56054505,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "657",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 157,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.6878980891719745,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:657:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Heilongjiang",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56054552,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "647",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 769,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.5929778933680104,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:647:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Henan",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
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      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56054662,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "646",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 5587,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.5924467513871488,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:646:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Hebei",
      "upstreamSeverity": "critical"
    },
    {
      "asn": null,
      "blockingMethod": null,
      "confidence": 0.77,
      "continent": "Asia",
      "countryCode": "CN",
      "domain": null,
      "domainCategory": null,
      "id": 56054745,
      "kind": "alert",
      "linkConfidence": 0.8,
      "linkReason": "Same country and date, critical level IODA alert",
      "observedAt": "2026-05-03T20:50:00Z",
      "probeNodeId": null,
      "regionCode": "645",
      "retrievedAt": "2026-05-04T00:00:10.054515",
      "riskTier": 1,
      "signalBaseline": 1871,
      "signalLevel": "critical",
      "signalType": "outage",
      "signalValue": 0.6151790486370925,
      "source": "ioda",
      "sourceRef": "ioda:alert:ping-slash24:region:645:1777841400",
      "sourceUrl": "https://ioda.inetintel.cc.gatech.edu/country/CN",
      "unSubregion": "Eastern Asia",
      "upstreamCause": null,
      "upstreamClaim": "IODA detected critical level outage for Yunnan",
      "upstreamSeverity": "critical"
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  ],
  "evidenceCount": 18,
  "evidenceSourceBreakdown": {
    "ioda": 18
  },
  "evidenceSpan": {
    "earliest": "2026-05-03T20:50:00Z",
    "latest": "2026-05-03T20:50:00Z"
  },
  "flag": "🇨🇳",
  "generated_at_utc": "2026-09-20T08:20:23.454285Z",
  "hashId": "fc0e8f5470ab",
  "id": "CN-2026-0229",
  "incidentType": "disruption",
  "measurementCount": 18,
  "mechanism": "Infrastructure outage",
  "readableId": "CN-2026-0229",
  "reportUrl": "https://api.voidly.ai/data/incidents/fc0e8f5470ab/report?format=markdown",
  "revision": 1,
  "severity": "critical",
  "severityGrade": "B",
  "sources": [
    "ioda"
  ],
  "startTime": "2026-05-03T20:50:00Z",
  "status": "active",
  "title": "Internet connectivity disruption in China",
  "updatedAt": "2026-05-04T00:00:11.485768"
}
All China incidents
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Related records come from up to 100 recent records in the same country. They do not establish a causal connection.

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