fas.org
Mixed
Results vary across fas.org: of 17 URLs tested, 1 is blocked, 2 are disrupted some of the time, 12 load normally and 2 have no conclusive recent result. The site itself, https://fas.org, loads normally. The Great Firewall resets the connection. 278 tests have been run under this domain since 2014-08-17, the most recent on 2026-07-29.
The site itself
http://fas.orgas of 2026Not blockedhttps://fas.orgNot blockedhttps://www.fas.orgIntermittentPages and subdomains (14)
https://fas.org/blogs/secrecyNot blockedhttp://fas.org/nuke/guide/china/nukeBlockedhttps://fas.org/blogs/security/2019/05/chinareport2019as of 2026Not blockedhttps://fas.org/publication/chinese-nuclear-forces-2024-a-significant-expansion/as of 2026Not blockedhttp://irp.fas.orgas of 2026Intermittenthttps://irp.fas.orgNot blockedhttps://sgp.fas.orgas of 2026Not blockedhttps://nuke.fas.orgas of 2026Not blockedhttps://blogs.fas.orgUnresolvablehttps://covid19.fas.orgUnresolvablehttps://programs.fas.orgas of 2025Not blockedhttps://irp.fas.org/world/chinaas of 2026Not blockedhttps://nuke.fas.org/guide/china/icbm/df-5.htmNot blockedhttps://irp.fas.org/world/china/pla/dept_3.htmas of 2026Not blockedAbout fas.org and the Great Firewall
Results vary across fas.org: of 17 URLs tested, 1 is blocked, 2 are disrupted some of the time, 12 load normally and 2 have no conclusive recent result. The site itself, https://fas.org, loads normally. The Great Firewall resets the connection. 278 tests have been run under this domain since 2014-08-17, the most recent on 2026-07-29.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks fas.org. GreatFire runs GreatFire VPN; the Analyzer also tests the domains of many VPN and proxy providers, so you can check whether one is reachable before relying on it.
Elsewhere on the site
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.