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    OONI Blog

    ooni.org · Company blog · on HN since 2019

    The Open Observatory of Network Interference publishes measurements and reports on internet censorship around the world, using data from volunteers.

    Visit blogHN submissions
    NetworkingPrivacy & PolicySecurity
    What HN says

    HN commenters recommend OONI as a tool for testing whether your network censors sites, and look to its reports on blocking.

    Stats for nerds
    33HN people shared it
    30linked in comments
    472story points
    Apr 2026last shared
    2019people per year2026

    Top posts on HN

    1. 1
      Investigating TLS Blocking in India
      2 people · 210 points · first shared 2020 · 128 comments on HN
    2. 2
      A Quick Look at QUIC Censorship
      2 people · 112 points · first shared 2022 · 53 comments on HN
    3. 3
      China is now blocking all language editions of Wikipedia (2019)
      1 person · 33 points · first shared 2020 · 6 comments on HN
    4. 4
      Zambia: Social media blocked amid 2021 general elections
      1 person · 23 points · first shared 2021 · 5 comments on HN
    5. 5
      Russia Started Blocking Tor (2021)
      2 people · 19 points · first shared 2022 · 4 comments on HN
    6. 6
      Open Observatory of Network Interference
      12 people · 14 points · first shared 2020 · 1 comments on HN
    7. 7
      New blocks emerge in Russia amid war in Ukraine
      2 people · 10 points · first shared 2022 · Discussion on HN
    8. 8
      Measuring DoT/DoH Blocking Using OONI Probe: A Preliminary Study
      3 people · 9 points · first shared 2022 · Discussion on HN
    9. 9
      Countries attempt to block Signal Private Messenger App around the world
      2 people · 8 points · first shared 2021 · 1 comments on HN
    10. 10
      Internet censorship in Russia, During first year of military conflict in Ukraine
      2 people · 5 points · first shared 2023 · Discussion on HN

    What HN people wrote when they linked it

    • hellaisOct 2021

      OONI | Mobile Developer | Full-time | Remote | https://ooni.org/

      Are you a mobile developer interested in defending human rights on the internet? We have a job opening for you!

      The OONI team (a non-profit fighting internet censorship, originally born out of the Tor Project) is looking for a dedicated mobile developer to work on OONI Probe: a free software app designed to measure internet censorship and network performance.

      If you join our team, you will lead the development of the OONI Probe mobile app, supporting human rights defenders worldwide to investigate and fight internet censorship.

      You will work on improving the OONI Probe mobile app and create new features to meet our global community’s needs. The Android app is currently written in Java, while the iOS app is written in Objective-C, but you are also welcome to use Kotlin or Swift.

      Ideally, you would work on both the Android and iOS versions of OONI Probe. But as OONI Probe Android is run by most OONI Probe users around the world, we are primarily interested in contracting a developer with strong Android app development experience and expertise.

      This is a full-time 12-month contract position, starting ASAP. The contract may be extended depending on the contractor’s performance and the availability of funds. The yearly contractor fee will range between 50,000-60,000 EUR depending on the contractor’s relevant experience and expertise.

      This is a fully remote position. Even before the COVID-19 pandemic, the OONI…

    • Trouble_007Jun 2022

      >Maria Xynou https://ooni.org - Fri Jun 17 12:39:52 UTC 2022

      Hello Tor folks,

      I'm reaching out to share the following which may be of interest:

      Last year, OONI wrote a research paper, Measuring DoT/DoH Blocking Using OONI Probe: A Preliminary Study

      Which was presented at the Network and Distributed System Security Symposium (NDSS'21) as part of the DNS Privacy Workshop

      You can read this paper here: https://www.ndss-symposium.org/wp-content/uploads/dnspriv21-02-paper.pdf

      This study involves an investigation of encrypted DNS (DoT & DoH) blocking in Kazakhstan, Iran, and China with a new OONI Probe experiment (DNSCheck).

      Today, we're publishing a blog post with a summary of findings (and video presentation) : https://ooni.org/post/2022-doh-dot-paper-dnsprivacy21/

      You can also find a summary of findings through this Twitter thread: https://twitter.com/OpenObservatory/status/1537764247442268161

      (Nitter : https://nitter.net/OpenObservatory/status/1537764247442268161 )

      You can help contribute measurements on encrypted DNS blocking by running OONI Probe: https://ooni.org/install

      Thanks, Maria.<

    • segfaultbuserrSep 2020

      Tor Project closely cooperates with The Open Observatory of Network Interference. OONI provides a standardized testsuit that automatically probes a wide range of websites for evaluating the censorship status in different parts of the world, and volunteers can contribute data by running an instance.

      But the objective of the project is only to identify governmental and ISP-wide censorships. And its capabilities for checking protocol-level censorship techniques are rather limited [0]. Perhaps we need a similar tool or fork for probing middleboxes and censorship in private networks.

      [0] https://ooni.org/nettest/

    • ooniJan 2023

      The Open Observatory of Network Interference project monitors the Internet to detect censorship - https://ooni.org

      We are a no-profit and network measurements are provided by volunteers.

      You can browse our data regarding raw.githubusercontent.com on:

      https://explorer.ooni.org/chart/mat?probe_cc=IN&test_name=web_connectivity&domain=raw.githubusercontent.com&since=2022-11-04&until=2023-01-04&axis_x=measurement_start_day

      https://explorer.ooni.org/chart/mat?probe_cc=IN&test_name=web_connectivity&domain=raw.githubusercontent.com&since=2022-11-04&until=2023-01-04&axis_x=measurement_start_day&axis_y=probe_asn

    • Sevan777May 2022

      archive.org is still blocked by 2 mobile telcos https://www.blocked.org.uk/site/http://archive.org
      It was blocked by more around 2019, including by Three. Had to do the same dance to get restrictions lifted so that I could visit a library, then the rep offered me a special deal on increasing my monthly data transfer quota "for streaming videos".
      Despite an "unrestricted" account, I still cannot connect to tor bridges and telegram (according to OONI tests https://ooni.org/)

    • input_shNov 2019

      Here's a practical example: due to US sanctions, no Iranian citizen can have a Visa or a MasterCard. Assuming they've acquired cryptocurrencies somehow, it's their only way of paying for digital goods.

      (assuming, of course, that the government doesn't shut down the Internet, as it did just days ago: https://ooni.org/post/2019-iran-internet-blackout/)

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