ab.co
Mixed
Results vary across ab.co: of 3 URLs tested, 2 are blocked and 1 is disrupted some of the time. The site itself, https://ab.co, is blocked. The Great Firewall blocks the connection outright and silently drops its packets so requests time out. 47 tests have been run under this domain since 2014-12-03, the most recent on 2026-07-16.
The site itself
http://ab.coas of 2026Blockedhttps://ab.coBlockedPages and subdomains (1)
http://ab.co/1vHWXNzIntermittentAbout ab.co and the Great Firewall
Results vary across ab.co: of 3 URLs tested, 2 are blocked and 1 is disrupted some of the time. The site itself, https://ab.co, is blocked. The Great Firewall blocks the connection outright and silently drops its packets so requests time out. 47 tests have been run under this domain since 2014-12-03, the most recent on 2026-07-16.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks ab.co. 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.