Data / Topic evidence
Four categories. A clearer view of each.
Explore the topics ↘1 of 4 sources available · 64 returned country/topic entries, from available sources only. Countries can appear in more than one topic.
01 / Choose your subject
Each ranking measures category evidence volume. It does not establish which countries block a topic.
Reproductive rights, women's health, LGBT advocacy, human rights organizations.
Response generated:
Full evidence & context ↗100 marks the largest count in this category, not a probability of blocking.
Independent news outlets, journalism, and press-freedom organizations.
Response generated: unavailable
Full evidence & context ↗Source unavailable
100 marks the largest count in this category, not a probability of blocking.
Topic source unavailable. Counts and rankings have not been substituted. The topic source returned HTTP 503.
VPN services, Tor, Signal, Telegram, WhatsApp, anti-censorship infrastructure.
Response generated: unavailable
Full evidence & context ↗Source unavailable
100 marks the largest count in this category, not a probability of blocking.
Topic source unavailable. Counts and rankings have not been substituted. The topic source returned HTTP 503.
YouTube, Instagram, Tumblr, streaming services, podcasts, video sharing.
Response generated: unavailable
Full evidence & context ↗Source unavailable
100 marks the largest count in this category, not a probability of blocking.
Topic source unavailable. Counts and rankings have not been substituted. The topic source returned HTTP 503.
02 / A source, with context
The score compares evidence counts within one category. The method and the source record stay attached.
The checked-in topic query counts all evidence rows assigned to one Citizen Lab category and groups them by country. It does not filter those rows by a blocking signal or observation date. Evidence volume therefore does not establish a confirmed block, intent or national coverage.
Relative index: round(country evidence count × 100 ÷ largest country count in this category). It is a ratio to the maximum, even though the API names its scoring method “percentile_against_max_in_category”. Scores are not comparable across topics as a measure of censorship severity. A rounded score of zero can still have evidence rows.
Source bands: severe ≥70, high ≥50, medium ≥25, low ≥10, free below 10 in the checked-in handler. These names are retained as source labels. “Free” is not a finding that a country permits access; “severe” is not independent confirmation of broad censorship.
Domains: the response field named blocked contains frequent domains in the category evidence query. It does not prove that each listed domain is blocked. The endpoint currently returns up to five per country; all returned values appear here.
Trend: the checked-in handler always emits “stable”. This preview retains that field in each record without drawing a movement chart or implying that conditions were unchanged.
Time: generated_at_utc and dateModified are set when the endpoint builds its response. They are not the latest measurement date. No observation window is inferred; source caching for five minutes is not a promise of new evidence every five minutes.
The source ecosystem includes OONI, Censored Planet, IODA and Voidly probes. This category response does not identify every contributing source. Domain categories follow the Citizen Lab test lists; example domains and returned domains have different meanings.
Voidly original material: CC BY 4.0. Upstream source terms remain applicable. Full methodology ↗
The four canonical pages map to four underlying categories. API aliases are alternative names for those categories, not separately measured datasets.
women-healthwomen-healthGRPAccepted aliases in the checked-in handler: women-health, womens-health, reproductive-rights, womens-rights, lgbtq, lgbt, human-rights, group-rights.
press-freedompressNEWSAccepted aliases in the checked-in handler: news, journalism, press.
circumventioncircumventionCOMTAccepted aliases in the checked-in handler: circumvention, anti-censorship, communications, messaging.
multimediamultimediaMMEDAccepted aliases in the checked-in handler: multimedia, media.
03 / Make it useful
Use the category URL shown with each topic.
For researchersOpen data hub ↗Keep source, scope and dates with the evidence.
For publishersWidget builder ↗The current widget is country-based. Topic embed limitations are shown on the detail pages.