# Censorship detected in IR

**Country:** 🇮🇷 Iran (IR)
**Date:** 2026-09-04
**Type:** Censorship
**Severity:** CRITICAL
**Status:** suspected

## Summary

None

## Metrics

- Confidence: 89%
- Measurements: 16
- Anomaly Rate: 97.1%

## Evidence

- **OONI** (measurement): OONI signal: 32/33 measurements anomalous (97.0%)
  - Observed: 2026-09-04
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 33/34 measurements anomalous (97.1%)
  - Observed: 2026-09-04
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI telegram: 34/35 measurements anomalous (97.1%)
  - Observed: 2026-09-04
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 31/36 measurements anomalous (86.1%)
  - Observed: 2026-09-04
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI signal: 34/40 measurements anomalous (85.0%)
  - Observed: 2026-09-04
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 28/34 measurements anomalous (82.4%)
  - Observed: 2026-09-04
  - Confidence: 83%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI telegram: 33/39 measurements anomalous (84.6%)
  - Observed: 2026-09-04
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 27/40 measurements anomalous (67.5%)
  - Observed: 2026-09-04
  - Confidence: 77%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI signal: 35/37 measurements anomalous (94.6%)
  - Observed: 2026-09-04
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 36/38 measurements anomalous (94.7%)
  - Observed: 2026-09-04
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI telegram: 38/40 measurements anomalous (95.0%)
  - Observed: 2026-09-04
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 24/38 measurements anomalous (63.2%)
  - Observed: 2026-09-04
  - Confidence: 75%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI signal: 20/21 measurements anomalous (95.2%)
  - Observed: 2026-09-04
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 19/20 measurements anomalous (95.0%)
  - Observed: 2026-09-04
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI telegram: 20/21 measurements anomalous (95.2%)
  - Observed: 2026-09-04
  - Confidence: 88%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-09-04&until=2026-09-05&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 19/21 measurements anomalous (90.5%)
  - Observed: 2026-09-04
  - Confidence: 86%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-09-04&until=2026-09-05&only=anomalies)

## What we cannot say

- **Who caused it** — measurement data alone does not attribute the interference 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, 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.

## Data Sources

ooni

## Citation

Voidly Research. (2026). Censorship detected in IR [IR-2026-2419]. Retrieved from https://voidly.ai/incident/IR-2026-2419

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*Report generated by Voidly Research on 2026-09-05*
*Data licensed under CC BY 4.0*
*Incident ID: IR-2026-2419*
*Permalink: https://voidly.ai/incident/IR-2026-2419*