citizenlab.org
Mostly blocked
14 of the 16 URLs we have a verdict for under citizenlab.org are blocked in mainland China; 2 are not. The site itself, https://citizenlab.org, is blocked. The Great Firewall silently drops its packets so requests time out, blocks the connection outright and resets the connection. 818 tests have been run under this domain since 2011-04-30, the most recent on 2026-07-27.
The site itself
http://citizenlab.orgas of 2026Blockedhttps://citizenlab.orgBlockedhttp://www.citizenlab.orgBlockedhttps://www.citizenlab.orgas of 2026BlockedPages and subdomains (12)
https://citizenlab.org/tag/chinaBlockedhttp://citizenlab.org/2015/04/chinas-great-cannonas of 2026Blockedhttps://citizenlab.org/2015/04/chinas-great-cannonBlockedhttp://citizenlab.org?cron_key=HW_OMiFD8hN_jLld01nMor9QRryzNeJqho7yuMCADkkas of 2026Blockedhttps://citizenlab.org/2016/11/wechat-china-censorship-one-app-two-systemsBlockedhttps://citizenlab.org/2012/09/middle-east-and-north-africa-cyberwatch-august-25-september-7as of 2026Intermittenthttps://citizenlab.org/wp-content/uploads/2017/03/citizenlab_whos-watching-little-brother.pdfas of 2026Blockedhttps://citizenlab.org/2013/11/asia-chats-investigating-regionally-based-keyword-censorship-lineBlockedhttps://citizenlab.org/2017/04/we-cant-chat-709-crackdown-discussions-blocked-on-weibo-and-wechatas of 2026Intermittenthttps://citizenlab.org/2013/11/asia-chats-analyzing-information-controls-privacy-asian-messaging-applicationsBlockedhttps://citizenlab.org/2016/11/harmonized-histories-year-fragmented-censorship-across-chinese-live-streaming-applicationsBlockedhttp://deibert.citizenlab.orgas of 2026BlockedAbout citizenlab.org and the Great Firewall
14 of the 16 URLs we have a verdict for under citizenlab.org are blocked in mainland China; 2 are not. The site itself, https://citizenlab.org, is blocked. The Great Firewall silently drops its packets so requests time out, blocks the connection outright and resets the connection. 818 tests have been run under this domain since 2011-04-30, the most recent on 2026-07-27.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks citizenlab.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
Most-blocked .org domainsEvery tested URL under citizenlab.org
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.