451 Censorship Detector
Extension Delisted
This extension is no longer available in the official store. Delisted on 2025-09-16.
CRX ID
gohjicbdbalkdcfpaldolimmidackndl
Status
Unpublished Long Ago
No Privacy Policy
Description from extension meta
451 Censorship Detector verifies in real time if the website in the tab is blocked for legal reasons and turns red
Image from store
Description from store
This was developed as part of the first prototypes during the IETF 99.
It detects cases of http status code 451.
This is a special status code sent by website to give an indication of:
- Blocking for legal reasons.
- Blocking can be country wise
- But are almost always imposed on ISPs by court order
Sample websites to test: https://github.com/adadgio/safari-reader-js -> Apple's original work https://github.com/mikey1234/plugin.video.itv -> Pirated BBC stream
