claude.ai
Mixed
Results vary across claude.ai: of 8 URLs tested, 1 is blocked, 3 are disrupted some of the time and 4 load normally. The Great Firewall silently drops its packets so requests time out, breaks its TLS handshake and blocks the connection outright. 98 tests have been run under this domain since 2023-07-13, the most recent on 2026-08-14.
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://claude.aiBlockedhttps://claude.aiIntermittenthttps://www.claude.aiIntermittentPages and subdomains (5)
https://claude.ai/newIntermittenthttps://claude.ai/chatsas of 2026Not blockedhttps://claude.ai/upgrade/proas of 2026Not blockedhttps://claude.ai/cdn-cgi/traceas of 2026Not blockedhttps://claude.ai/chat/fb50c248-7dc1-4908-bb05-0df1530314efNot blockedAbout claude.ai and the Great Firewall
Results vary across claude.ai: of 8 URLs tested, 1 is blocked, 3 are disrupted some of the time and 4 load normally. The Great Firewall silently drops its packets so requests time out, breaks its TLS handshake and blocks the connection outright. 98 tests have been run under this domain since 2023-07-13, the most recent on 2026-08-14.
Plain HTTP and HTTPS differ here: http://claude.ai is blocked, https://claude.ai is intermittent. 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 claude.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
claude.ai is ranked #439 among the world's most-visited domains (Tranco).
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Each URL's status is its verdict over the last 90 days, the same one its own page headlines.