duck.ai
Mixed
Results vary across duck.ai: of 4 URLs tested, 2 are blocked and 2 load normally. The site itself, https://Duck.AI, loads normally. The Great Firewall blocks the connection outright, breaks its TLS handshake and silently drops its packets so requests time out. 53 tests have been run under this domain since 2024-08-20, the most recent on 2026-07-24.
The site itself
http://Duck.AINot blockedhttps://Duck.AINot blockedhttp://www.duck.aias of 2026Blockedhttps://www.duck.aias of 2026BlockedAbout duck.ai and the Great Firewall
Results vary across duck.ai: of 4 URLs tested, 2 are blocked and 2 load normally. The site itself, https://Duck.AI, loads normally. The Great Firewall blocks the connection outright, breaks its TLS handshake and silently drops its packets so requests time out. 53 tests have been run under this domain since 2024-08-20, the most recent on 2026-07-24.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks duck.ai. 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.