# Historical blocking: CN 2022-01-24 to 2022-01-26

**Country:** 🇨🇳 China (CN)
**Date:** 2022-01-24
**Type:** Censorship
**Severity:** CRITICAL
**Status:** confirmed

## Summary

Backfilled from OONI historical archive. 2 anomalous day(s), 7 measurements, 94% anomaly rate. Signal types: block, interference. Signal levels: critical.

## Metrics

- Confidence: 96%
- Measurements: 7
- Anomaly Rate: 93.8%

## 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.
- **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-historical-backfill

## Citation

Voidly Research. (2026). Historical blocking: CN 2022-01-24 to 2022-01-26 [CN-2022-0330]. Retrieved from https://voidly.ai/incident/CN-2022-0330

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*Report generated by Voidly Research on 2026-06-21*
*Data licensed under CC BY 4.0*
*Incident ID: CN-2022-0330*
*Permalink: https://voidly.ai/incident/CN-2022-0330*