Cite this incident

Historical blocking: MM 2021-02-11 to 2021-02-20 · 2021 · voidly.ai/incident/MM-2021-0031

Backfilled from OONI historical archive. 10 anomalous day(s), 20 measurements, 64% anomaly rate. Signal types: block, interference. Signal levels: critical.

Licensed under CC BY 4.0. Accessed 2026-06-21.

BibTeX

@misc{voidly-mm-2021-0031-2021,
  author       = {Voidly Research},
  title        = {Historical blocking: MM 2021-02-11 to 2021-02-20},
  year         = {2021},
  url          = {https://voidly.ai/incident/MM-2021-0031},
  urldate      = {2026-06-21},
  organization = {Ai Analytics LLC},
  note         = {Voidly incident MM-2021-0031. CC BY 4.0.}
}

APA

Voidly Research. (2021). Historical blocking: MM 2021-02-11 to 2021-02-20. Ai Analytics LLC. Retrieved 2026-06-21, from https://voidly.ai/incident/MM-2021-0031

Chicago (Author-Date)

Voidly Research. 2021. "Historical blocking: MM 2021-02-11 to 2021-02-20." Ai Analytics LLC. Accessed 2026-06-21. https://voidly.ai/incident/MM-2021-0031.

MLA

Voidly Research. "Historical blocking: MM 2021-02-11 to 2021-02-20." Ai Analytics LLC, 2021, voidly.ai/incident/MM-2021-0031. Accessed 2026-06-21.

Markdown

[Historical blocking: MM 2021-02-11 to 2021-02-20](https://voidly.ai/incident/MM-2021-0031) — Voidly Research, 2021. Accessed 2026-06-21. CC BY 4.0.

API export endpoints

Server-side citation export (always reflects the latest evidence + readable ID, even if the incident is later renamed):

# BibTeX
curl https://api.voidly.ai/data/incidents/MM-2021-0031/report?format=bibtex

# RIS  (Zotero, EndNote, Mendeley)
curl https://api.voidly.ai/data/incidents/MM-2021-0031/report?format=ris

# Markdown report
curl https://api.voidly.ai/data/incidents/MM-2021-0031/report?format=markdown

Looking for the general citation hub? See /cite.

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