Critics say NetBlocks, which monitors internet shutdowns, needs to be more transparent about its methods as some cast doubt on the reliability of its reports
NetBlocks has become a crucial source of truth in the era of internet shutdowns. But many are now questioning its methods Tweets: @wired , @netblocks , @vulanemthembu , @ehundman , @anittatodayr , @aaschapiro , and @wired Tweets: @wired : Since its launch in 2016, Netblocks has alerted the world to every internet incident. Experts in internet measurement question the vagueness of the company's explanations of its methods and have continued to call for more transparency. https://www.wired.co.uk/... Via @WIREDUK @netblocks : @ehundman Every organisation has stated goals and non-goals. One of our goals is to track internet shutdowns and disruptions. It's alarming that you've made false statements about our research lead and then rapidly changed subject instead of retracting your claim. https://twitter.com/... Vulane Mthembu / @vulanemthembu : OVER THE PAST decade, internet shutdowns have gone from being rare, outrageous events in crumbling regimes - like Hosni Mubarak's Egypt or Muammar Gaddafi's Libya - to another instrument in the toolkit of autocrats. https://www.wired.co.uk/... @ehundman : Seems I am not the first to raise an eyebrow at the NetBlocks methodology, which remains shrouded in secrecy. https://www.wired.co.uk/... https://twitter.com/... @anittatodayr : Netblocks, which tracks internet disruptions and shutdowns, said that the government had partially disrupted access to social media and messaging platforms. Avi Asher-Schapiro / @aaschapiro : A deep dive into the beef between NetBlocks - the go-to organization to understand internet censorship for many journalists - & the wider community of network measurement researchers, many of whom distrust - & in some cases loath - Netblocks https://www.wired.co.uk/... @wired : As NetBlocks has attained stardom among internet-watchers, a question has rumbled on: how does it know that the internet is down? It's a seemingly simple question with a complex answer: https://www.wired.co.uk/... Via @WIREDUK
Context & Ripple Effects
As governments escalated connectivity blackouts — a watchdog counted 196+ shutdowns across 25 countries in 2018, up from 75 in 2016 — NetBlocks became the default alert system, its real-time outage reports quoted by newsrooms worldwide. That authority was built on speed and consistency rather than published methodology.
Now the foundation is being questioned: internet-measurement researchers say the organization's explanations of how it detects and attributes shutdowns are too vague to verify, and NetBlocks has responded by denying claims and accusing critics of false statements rather than opening its methods. Wired UK's report lands between two data points in the same arc — analysts counting roughly 850 intentional blocks over the past decade and documentation of 935+ blackouts across 60+ countries — meaning more of the world's shutdown record rests on a source whose rigor is now openly disputed.
First-order effects
- Newsrooms and rights groups that treat a NetBlocks alert as confirmation must now decide whether to corroborate before publishing, slowing the flow of information precisely during fast-moving blackout events like those documented in Sudan, Iran, and Hong Kong.
- NetBlocks itself shifts resources from monitoring to reputation management, with its public spat with critics — including researcher Vulane Mthembu and reporter Avi Asher-Schapiro's reporting — replacing methodological disclosure.
Second-order effects
- Governments accused of ordering shutdowns gain a ready-made rebuttal: if the monitor's methods are opaque, officials can dispute attribution instead of answering for the outage itself.
- Academic measurement projects and independent network operators become the fallback verifiers, fragmenting what had been a single authoritative signal into competing datasets that journalists must reconcile.
Third-order effects
- The episode points toward a structural test for civic-monitoring organizations generally: authority built on being first and loudest erodes unless methods are auditable, pushing the field toward open tooling and replicable measurements as the price of continued trust.
- If no transparency standard emerges, the historical record of government censorship — the counts underpinning coverage of hundreds of shutdowns — becomes contestable terrain, weakening the evidence base that digital-rights advocates rely on.
The trend: As internet shutdowns multiply into a standard instrument of state control, the credibility burden is shifting onto the monitors themselves, making methodological transparency the next battleground in documenting digital repression.