How OONI Works
OONI scans TCP, DNS, HTTP and TLS connections for tampering. Some tests work by requesting data over an unencrypted connection and comparing against a known good value. Others check for DNS spoofing, keyword filtering, transparent proxying and website block lists.
There are risks. Running a probe involves testing connections to websites that may be banned and using tools to attempt circumventing web censorship. It is not designed to protect the privacy of those running probes. Measurements are published and can include IP addresses or other identifying information.
Ethiopia: Internet Shutdown Amidst Recent Protests?
Internet Access Disruption in Turkey - July 2016
OONI releases new Web Connectivity test for detecting online censorship
How Uganda blocked social media, again
OONI Data Reveals How WhatsApp Was Blocked (Again) in Brazil
WhatsApp bloqueado (outra vez) no Brasil
EEEP and Greek Internet censorship
Zambia, a country under Deep Packet Inspection
Tab-Tab, Come in! Bypassing Internet blocking to categorize DPI devices
T-Mobile USA Web Guard
If you are contributing regular ooniprobe measurements be sure to also subscribe to ooni-operators for important updates.
To contact the OONI team send an email to firstname.lastname@example.org Encrypted emails can be sent using the following PGP key:
Key ID: 0CB177B7 Fingerprint: 4C15 DDA9 96C6 C0CF 48BD 3309 6B29 43F0 0CB1 77B7