GRP·GRP
1 severeWomen's health & rights
Reproductive rights, women's health, LGBT advocacy, human rights organizations.
#1China100
#2Iran67
#3Russia67
19 countries with data142 evidence rows
The four topic categories
Tap any card to see the full ranking, blocked-domains breakdown, and copy-paste API access.
NEWS·NEWS
Press freedom
Independent news outlets, journalism, and press-freedom organizations.
No country data yet for this topic. Check back as evidence accumulates.
0 countries with data0 evidence rows
COMT·COMT
4 severeCircumvention tools
VPN services, Tor, Signal, Telegram, WhatsApp, anti-censorship infrastructure.
#1China100
#2Iran80
#3Egypt73
16 countries with data133 evidence rows
MMED·MMED
7 severeMultimedia & video
YouTube, Instagram, Tumblr, streaming services, podcasts, video sharing.
#1China100
#2Iran79
#3Russia79
16 countries with data126 evidence rows
How topic filtering works
Voidly aggregates network measurements (DNS, TCP, TLS, HTTP) from OONI, CensoredPlanet, IODA, and our own probe network. Every blocked domain is mapped to a Citizen Lab test-list category. The topic API filters those measurements down to a single category, then ranks countries by total blocking volume in that category.
17 human-readable topic aliases (e.g. women-health, press-freedom) map onto 4 underlying base categories. Pick one of the four cards above to see country-level rankings.