# Censorship detected in IR

**Country:** 🇮🇷 Iran (IR)
**Date:** 2026-08-17
**Type:** Censorship
**Severity:** CRITICAL
**Status:** suspected

## Summary

None

## Metrics

- Confidence: 90%
- Measurements: 16
- Anomaly Rate: 100.0%

## Evidence

- **OONI** (measurement): OONI signal: 32/32 measurements anomalous (100.0%)
  - Observed: 2026-08-17
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 30/30 measurements anomalous (100.0%)
  - Observed: 2026-08-17
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI telegram: 34/34 measurements anomalous (100.0%)
  - Observed: 2026-08-17
  - Confidence: 90%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 27/32 measurements anomalous (84.4%)
  - Observed: 2026-08-17
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI signal: 32/35 measurements anomalous (91.4%)
  - Observed: 2026-08-17
  - Confidence: 87%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 32/36 measurements anomalous (88.9%)
  - Observed: 2026-08-17
  - Confidence: 86%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI telegram: 34/37 measurements anomalous (91.9%)
  - Observed: 2026-08-17
  - Confidence: 87%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 31/37 measurements anomalous (83.8%)
  - Observed: 2026-08-17
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI signal: 51/59 measurements anomalous (86.4%)
  - Observed: 2026-08-17
  - Confidence: 85%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 49/57 measurements anomalous (86.0%)
  - Observed: 2026-08-17
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI telegram: 50/59 measurements anomalous (84.7%)
  - Observed: 2026-08-17
  - Confidence: 84%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 46/60 measurements anomalous (76.7%)
  - Observed: 2026-08-17
  - Confidence: 81%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI signal: 39/40 measurements anomalous (97.5%)
  - Observed: 2026-08-17
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=signal&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI whatsapp: 37/38 measurements anomalous (97.4%)
  - Observed: 2026-08-17
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=whatsapp&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI telegram: 41/42 measurements anomalous (97.6%)
  - Observed: 2026-08-17
  - Confidence: 89%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=telegram&since=2026-08-17&until=2026-08-18&only=anomalies)
- **OONI** (measurement): OONI facebook_messenger: 31/41 measurements anomalous (75.6%)
  - Observed: 2026-08-17
  - Confidence: 80%
  - [OONI Explorer (independently verifiable)](https://explorer.ooni.org/search?probe_cc=IR&test_name=facebook_messenger&since=2026-08-17&until=2026-08-18&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-2026-2373]. Retrieved from https://voidly.ai/incident/IR-2026-2373

---
*Report generated by Voidly Research on 2026-08-18*
*Data licensed under CC BY 4.0*
*Incident ID: IR-2026-2373*
*Permalink: https://voidly.ai/incident/IR-2026-2373*