Internet Censorship Tracker

Which countries are blocking websites — measured, not estimated. Every number here comes from network measurements taken by volunteer probes, and you can download the whole dataset.

Confirmed blocking by country

Ranked by the share of measurements where blocking was proven — a block page was served, or a DNS answer pointed somewhere it demonstrably should not. Countries with fewer than 1000 measurements in the period are left out, because a handful of probes in a bad hour can produce a striking percentage that means nothing.

# Country Confirmed blocked Anomalies Measurements
1 Iran IR 31.76% (208,373) 12.86% (84,384) 656,033
2 Cuba CU 18.25% (2,432) 14.32% (1,908) 13,328
3 Russia RU 4.37% (265,592) 30.80% (1,872,795) 6,080,737
4 Turkey TR 2.61% (15,029) 7.87% (45,370) 576,575
5 Indonesia ID 2.35% (14,263) 3.66% (22,160) 606,225
6 India IN 1.85% (18,730) 5.16% (52,313) 1,014,350
7 Saudi Arabia SA 1.83% (2,028) 8.92% (9,908) 111,077
8 Italy IT 1.16% (10,807) 2.98% (27,800) 932,841
9 Myanmar MM 1.12% (959) 26.26% (22,489) 85,638
10 Thailand TH 0.54% (1,646) 1.58% (4,830) 305,737
11 United Arab Emirates AE 0.37% (429) 11.70% (13,488) 115,268
12 Malaysia MY 0.36% (1,522) 2.03% (8,528) 420,172
13 Singapore SG 0.30% (580) 3.06% (5,902) 192,978
14 South Korea KR 0.26% (437) 4.53% (7,522) 166,074
15 China CN 0.14% (1,352) 55.01% (519,097) 943,637
16 Cyprus CY 0.14% (85) 1.99% (1,250) 62,678
17 Nepal NP 0.12% (36) 3.56% (1,048) 29,466
18 Poland PL 0.11% (935) 1.92% (15,796) 820,677
19 Finland FI 0.11% (387) 5.34% (18,305) 342,800
20 Hong Kong HK 0.10% (112) 2.96% (3,223) 109,037
21 United Kingdom GB 0.10% (1,417) 2.60% (36,905) 1,418,604
22 Cambodia KH 0.08% (38) 8.44% (3,787) 44,886
23 Czechia CZ 0.08% (217) 4.99% (13,809) 276,854
24 Netherlands NL 0.08% (774) 4.84% (49,176) 1,015,628
25 Romania RO 0.07% (89) 2.24% (2,705) 120,490
26 Spain ES 0.07% (2,337) 7.00% (247,374) 3,535,804
27 Lithuania LT 0.06% (45) 2.53% (1,972) 77,805
28 Canada CA 0.06% (715) 3.82% (48,451) 1,267,892
29 Greece GR 0.05% (59) 2.37% (2,628) 110,911
30 Austria AT 0.05% (87) 2.87% (5,003) 174,307
31 Georgia GE 0.05% (99) 1.88% (3,807) 202,092
32 Burkina Faso BF 0.05% (18) 4.48% (1,728) 38,610
33 Estonia EE 0.04% (51) 5.16% (6,060) 117,428
34 Colombia CO 0.04% (107) 3.32% (8,682) 261,655
35 Ireland IE 0.04% (98) 2.70% (6,649) 246,158
36 Sierra Leone SL 0.04% (4) 3.59% (371) 10,342
37 Serbia RS 0.04% (39) 1.98% (2,081) 104,942
38 Australia AU 0.03% (203) 1.84% (11,217) 608,354
39 Bangladesh BD 0.03% (41) 3.23% (4,261) 132,080
40 Oman OM 0.03% (6) 12.87% (2,523) 19,608

Confirmed and anomaly are deliberately separate columns. An anomaly is a measurement that looked wrong but could not be proven — ordinary network trouble produces those too. Adding the two together gives a bigger, more quotable number and an untrue one.

Download the data

All 151 countries, not just the table above. Free for any use, including commercial and journalistic — no attribution to us required, though OONI's licence asks for attribution to them.

CSV JSON

Method

The measurements come from OONI, the Open Observatory of Network Interference, which runs volunteer probes in over 160 countries and publishes the results openly. We query their aggregation API for the web_connectivity test, which asks a single question: could this site be reached from here?

We store a snapshot rather than querying live, so the numbers on this page do not move while you are reading them or while someone is citing them. The snapshot is refreshed weekly.

What this is not: a ranking of how censored a country is. Probe coverage is uneven, volunteers test the sites they care about, and a country with more engaged volunteers will show more of everything. It measures what was tested, which is not the same as what exists.

Per-site data

This page counts blocking per country. If you need it per website — which domains were measurably blocked where, month by month — that is published as an open dataset, one CSV per month, rebuilt from the same OONI measurements.

blocked-sites-dataset on GitHub Which services are blocked where

Citing this page

Unblock Master, "Internet Censorship Tracker",
Sept. 26, 2026 to Oct. 26, 2026.
https://www.unblockmaster.com/internet-censorship-tracker/
Underlying measurements: OONI (https://ooni.org), CC BY-NC-SA 4.0
(https://creativecommons.org/licenses/by-nc-sa/4.0/).

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