delta.chat
Mixed
Results vary across delta.chat: of 6 URLs tested, 4 are blocked and 2 load normally. The site itself, https://delta.chat, is blocked. The Great Firewall silently drops its packets so requests time out, poisons its DNS and breaks its TLS handshake. 65 tests have been run under this domain since 2019-07-29, the most recent on 2026-08-25.
The site itself
http://delta.chatBlockedhttps://delta.chatas of 2026Blockedhttp://www.delta.chatBlockedhttps://www.delta.chatBlockedPages and subdomains (2)
https://delta.chat/enas of 2026Not blockedhttps://delta.chat/zh_CN/as of 2026Not blockedAbout delta.chat and the Great Firewall
Results vary across delta.chat: of 6 URLs tested, 4 are blocked and 2 load normally. The site itself, https://delta.chat, is blocked. The Great Firewall silently drops its packets so requests time out, poisons its DNS and breaks its TLS handshake. 65 tests have been run under this domain since 2019-07-29, the most recent on 2026-08-25.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks delta.chat. 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.