Confirmed: censorship detected in Iran

Voidly Research

Incident record · Iran

Censorship detected in IR

Type: censorship
Status: suspected
Severity: critical

Inspect evidence Cite this incident

Source summary

No description was supplied in this record.

Open incident JSON

Reported anomaly rate: 100%
Source measurement count: 16
Incident confidence: 90%

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

Follow the evidence

16 linked records.

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

Linked observation dates

16 dated · 0 without a verified timezone

OONI16 linked records

May 28, 2026 · 00:00 UTCMay 28, 2026 · 18:00 UTC

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.

OONI16 records · open evidence

blocking · critical

ooni:live:IR:signal:2026-05-28:18

May 28, 2026 · 18:00 UTC

OONI signal: 28/30 measurements anomalous (93.3%)
Upstream claim · OONI

Signal value: 0.933333
Signal baseline: Unavailable
Evidence confidence: 87.3%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8733333333333333,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090312,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T18:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:03.345291Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9333333333333333,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:signal:2026-05-28:18",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI signal: 28/30 measurements anomalous (93.3%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:whatsapp:2026-05-28:18

May 28, 2026 · 18:00 UTC

OONI whatsapp: 33/35 measurements anomalous (94.3%)
Upstream claim · OONI

Signal value: 0.942857
Signal baseline: Unavailable
Evidence confidence: 87.7%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8771428571428572,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090320,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T18:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:04.220747Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9428571428571428,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:whatsapp:2026-05-28:18",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI whatsapp: 33/35 measurements anomalous (94.3%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:telegram:2026-05-28:18

May 28, 2026 · 18:00 UTC

OONI telegram: 30/32 measurements anomalous (93.8%)
Upstream claim · OONI

Signal value: 0.9375
Signal baseline: Unavailable
Evidence confidence: 87.5%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.875,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090328,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T18:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.041789Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9375,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:telegram:2026-05-28:18",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI telegram: 30/32 measurements anomalous (93.8%)",
  "upstreamSeverity": null
}

blocking · elevated

ooni:live:IR:facebook_messenger:2026-05-28:18

May 28, 2026 · 18:00 UTC

OONI facebook_messenger: 19/29 measurements anomalous (65.5%)
Upstream claim · OONI

Signal value: 0.655172
Signal baseline: Unavailable
Evidence confidence: 76.2%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.7620689655172415,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090336,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T18:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.884851Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "blocking",
  "signalValue": 0.6551724137931034,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:facebook_messenger:2026-05-28:18",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI facebook_messenger: 19/29 measurements anomalous (65.5%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:signal:2026-05-28:12

May 28, 2026 · 12:00 UTC

OONI signal: 49/51 measurements anomalous (96.1%)
Upstream claim · OONI

Signal value: 0.960784
Signal baseline: Unavailable
Evidence confidence: 88.4%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.884313725490196,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090311,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:03.345291Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9607843137254902,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:signal:2026-05-28:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI signal: 49/51 measurements anomalous (96.1%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:whatsapp:2026-05-28:12

May 28, 2026 · 12:00 UTC

OONI whatsapp: 53/54 measurements anomalous (98.1%)
Upstream claim · OONI

Signal value: 0.981481
Signal baseline: Unavailable
Evidence confidence: 89.3%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8925925925925926,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090319,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:04.220747Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9814814814814815,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:whatsapp:2026-05-28:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI whatsapp: 53/54 measurements anomalous (98.1%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:telegram:2026-05-28:12

May 28, 2026 · 12:00 UTC

OONI telegram: 52/52 measurements anomalous (100.0%)
Upstream claim · OONI

Signal value: 1
Signal baseline: Unavailable
Evidence confidence: 90%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.9,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090327,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.041789Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 1,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:telegram:2026-05-28:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI telegram: 52/52 measurements anomalous (100.0%)",
  "upstreamSeverity": null
}

blocking · elevated

ooni:live:IR:facebook_messenger:2026-05-28:12

May 28, 2026 · 12:00 UTC

OONI facebook_messenger: 37/55 measurements anomalous (67.3%)
Upstream claim · OONI

Signal value: 0.672727
Signal baseline: Unavailable
Evidence confidence: 76.9%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.769090909090909,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090335,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T12:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.884851Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "elevated",
  "signalType": "blocking",
  "signalValue": 0.6727272727272727,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:facebook_messenger:2026-05-28:12",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI facebook_messenger: 37/55 measurements anomalous (67.3%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:signal:2026-05-28:06

May 28, 2026 · 06:00 UTC

OONI signal: 48/48 measurements anomalous (100.0%)
Upstream claim · OONI

Signal value: 1
Signal baseline: Unavailable
Evidence confidence: 90%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.9,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090310,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T06:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:03.345291Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 1,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:signal:2026-05-28:06",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI signal: 48/48 measurements anomalous (100.0%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:whatsapp:2026-05-28:06

May 28, 2026 · 06:00 UTC

OONI whatsapp: 45/47 measurements anomalous (95.7%)
Upstream claim · OONI

Signal value: 0.957447
Signal baseline: Unavailable
Evidence confidence: 88.3%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8829787234042554,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090318,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T06:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:04.220747Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9574468085106383,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:whatsapp:2026-05-28:06",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI whatsapp: 45/47 measurements anomalous (95.7%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:telegram:2026-05-28:06

May 28, 2026 · 06:00 UTC

OONI telegram: 51/53 measurements anomalous (96.2%)
Upstream claim · OONI

Signal value: 0.962264
Signal baseline: Unavailable
Evidence confidence: 88.5%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8849056603773585,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090326,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T06:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.041789Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9622641509433962,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:telegram:2026-05-28:06",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI telegram: 51/53 measurements anomalous (96.2%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:facebook_messenger:2026-05-28:06

May 28, 2026 · 06:00 UTC

OONI facebook_messenger: 40/48 measurements anomalous (83.3%)
Upstream claim · OONI

Signal value: 0.833333
Signal baseline: Unavailable
Evidence confidence: 83.3%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8333333333333334,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090334,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T06:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.884851Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.8333333333333334,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:facebook_messenger:2026-05-28:06",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI facebook_messenger: 40/48 measurements anomalous (83.3%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:signal:2026-05-28:00

May 28, 2026 · 00:00 UTC

OONI signal: 32/33 measurements anomalous (97.0%)
Upstream claim · OONI

Signal value: 0.969697
Signal baseline: Unavailable
Evidence confidence: 88.8%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8878787878787879,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090309,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T00:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:03.345291Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9696969696969697,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:signal:2026-05-28:00",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI signal: 32/33 measurements anomalous (97.0%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:whatsapp:2026-05-28:00

May 28, 2026 · 00:00 UTC

OONI whatsapp: 30/33 measurements anomalous (90.9%)
Upstream claim · OONI

Signal value: 0.909091
Signal baseline: Unavailable
Evidence confidence: 86.4%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8636363636363636,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090317,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T00:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:04.220747Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9090909090909091,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:whatsapp:2026-05-28:00",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI whatsapp: 30/33 measurements anomalous (90.9%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:telegram:2026-05-28:00

May 28, 2026 · 00:00 UTC

OONI telegram: 31/34 measurements anomalous (91.2%)
Upstream claim · OONI

Signal value: 0.911765
Signal baseline: Unavailable
Evidence confidence: 86.5%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.8647058823529412,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090325,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T00:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.041789Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.9117647058823529,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:telegram:2026-05-28:00",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI telegram: 31/34 measurements anomalous (91.2%)",
  "upstreamSeverity": null
}

blocking · critical

ooni:live:IR:facebook_messenger:2026-05-28:00

May 28, 2026 · 00:00 UTC

OONI facebook_messenger: 25/34 measurements anomalous (73.5%)
Upstream claim · OONI

Signal value: 0.735294
Signal baseline: Unavailable
Evidence confidence: 79.4%
Link confidence: 90%

Why it is linked: OONI live measurements

Retrieved: May 29, 2026 · 03:00 UTC

Open upstream source

Complete evidence record

{
  "asn": null,
  "blockingMethod": null,
  "confidence": 0.7941176470588236,
  "continent": "Asia",
  "countryCode": "IR",
  "domain": null,
  "domainCategory": null,
  "id": 111090333,
  "kind": "measurement",
  "linkConfidence": 0.9,
  "linkReason": "OONI live measurements",
  "observedAt": "2026-05-28T00:00:00Z",
  "probeNodeId": null,
  "regionCode": null,
  "retrievedAt": "2026-05-29T03:00:05.884851Z",
  "riskTier": 1,
  "signalBaseline": null,
  "signalLevel": "critical",
  "signalType": "blocking",
  "signalValue": 0.7352941176470589,
  "source": "ooni",
  "sourceRef": "ooni:live:IR:facebook_messenger:2026-05-28:00",
  "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies",
  "unSubregion": "Southern Asia",
  "upstreamCause": null,
  "upstreamClaim": "OONI facebook_messenger: 25/34 measurements anomalous (73.5%)",
  "upstreamSeverity": null
}

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: ooni",
  "evidenceCount": 16,
  "level": "low",
  "score": 0.65,
  "sourceCount": 1,
  "sources": [
    "ooni"
  ]
}

Declared incident sources: OONI.

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

Facebook MessengerSignalTelegramWhatsApp

Incident mechanism

No mechanism specified at the incident level.

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": 16,
      "method": "blocking"
    }
  ],
  "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": [
    "ooni"
  ],
  "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.

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.

BibTeX ↓RIS ↓Markdown ↓JSON ↓Full citation page →

APA citation

Voidly Research. (2026). Censorship detected in IR [IR-2026-2268]. Voidly Global Censorship Index. https://voidly.ai/incident/IR-2026-2268

The record over time.

Created: 2026-08-01 01:33:46.126119 · timezone unspecified
Last updated: 2026-08-01 01:33:46.126119 · timezone unspecified
Revision: 1

Revision history and original fields

Revision-history array unavailable.

Canonical ID: IR-2026-2268. Source ID: IR-2026-2268. Hash ID: aaf96668ee9b.

Additional source duration field: 23.9997 hours. It is retained separately from the minutes field and does not establish a verified event duration.

Complete source JSON

{
  "affectedAsns": [],
  "affectedDomains": [],
  "affectedServices": [
    "Facebook Messenger",
    "Signal",
    "Telegram",
    "WhatsApp"
  ],
  "anomalyRate": 1,
  "attribution": {
    "asns_attributed": 0,
    "domains_attributed": 0,
    "methods": [
      {
        "evidence_count": 16,
        "method": "blocking"
      }
    ],
    "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": [
      "ooni"
    ],
    "top_asns": [],
    "top_domains": []
  },
  "confidence": 0.9,
  "corroboration": {
    "description": "Single source: ooni",
    "evidenceCount": 16,
    "level": "low",
    "score": 0.65,
    "sourceCount": 1,
    "sources": [
      "ooni"
    ]
  },
  "country": "IR",
  "countryName": "Iran",
  "createdAt": "2026-08-01T01:33:46.126119",
  "description": null,
  "duration": 1439,
  "durationHours": 23.9997,
  "endTime": "2026-05-28T23:59:59Z",
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      "linkConfidence": 0.9,
      "linkReason": "OONI live measurements",
      "observedAt": "2026-05-28T00:00:00Z",
      "probeNodeId": null,
      "regionCode": null,
      "retrievedAt": "2026-05-29T03:00:05.884851Z",
      "riskTier": 1,
      "signalBaseline": null,
      "signalLevel": "critical",
      "signalType": "blocking",
      "signalValue": 0.7352941176470589,
      "source": "ooni",
      "sourceRef": "ooni:live:IR:facebook_messenger:2026-05-28:00",
      "sourceUrl": "https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-05-28&until=2026-05-29&only=anomalies",
      "unSubregion": "Southern Asia",
      "upstreamCause": null,
      "upstreamClaim": "OONI facebook_messenger: 25/34 measurements anomalous (73.5%)",
      "upstreamSeverity": null
    }
  ],
  "evidenceCount": 16,
  "evidenceSourceBreakdown": {
    "ooni": 16
  },
  "evidenceSpan": {
    "earliest": "2026-05-28T00:00:00Z",
    "latest": "2026-05-28T18:00:00Z"
  },
  "flag": "🇮🇷",
  "generated_at_utc": "2026-09-20T15:18:40.506219Z",
  "hashId": "aaf96668ee9b",
  "id": "IR-2026-2268",
  "incidentType": "censorship",
  "measurementCount": 16,
  "mechanism": null,
  "readableId": "IR-2026-2268",
  "reportUrl": "https://api.voidly.ai/data/incidents/aaf96668ee9b/report?format=markdown",
  "revision": 1,
  "severity": "critical",
  "severityGrade": "B",
  "sources": [
    "ooni"
  ],
  "startTime": "2026-05-28T00:00:00Z",
  "status": "suspected",
  "title": "Censorship detected in IR",
  "updatedAt": "2026-08-01T01:33:46.126119"
}

All Iran incidents

Sep 20, 2026 · disruptionInternet connectivity disruption in Iran Sep 19, 2026 · disruptionInternet connectivity disruption in Iran Sep 19, 2026 · censorshipCensorship detected in IR Sep 18, 2026 · disruptionInternet connectivity disruption in Iran Sep 18, 2026 · censorshipCensorship detected in IR Sep 17, 2026 · disruptionInternet connectivity disruption in Iran

Related records come from up to 100 recent records in the same country. They do not establish a causal connection.

Country profile Explore OONI measurements Live feed

Source summary

16 linked records.

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