xmpp.org
Mixed
Results vary across xmpp.org: of 4 URLs tested, 3 are blocked and 1 loads normally. The Great Firewall silently drops its packets so requests time out, blocks the connection outright and poisons its DNS. 102 tests have been run under this domain since 2014-03-30, the most recent on 2026-08-18.
The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
The site itself
http://xmpp.orgas of 2026Not blockedhttps://xmpp.orgBlockedhttps://www.xmpp.orgBlockedPages and subdomains (1)
http://wiki.xmpp.orgas of 2026BlockedAbout xmpp.org and the Great Firewall
Results vary across xmpp.org: of 4 URLs tested, 3 are blocked and 1 loads normally. The Great Firewall silently drops its packets so requests time out, blocks the connection outright and poisons its DNS. 102 tests have been run under this domain since 2014-03-30, the most recent on 2026-08-18.
Plain HTTP and HTTPS differ here: http://xmpp.org is not blocked, https://xmpp.org is blocked. The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks xmpp.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.