451 Censorship Detector verifies in real time if the website in the tab is blocked for legal reasons and turns red
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