caltech.edu
Mixed
Results vary across caltech.edu: of 18 URLs tested, 1 is blocked, 14 load normally and 3 have no conclusive recent result. The site itself, https://caltech.edu, loads normally. The Great Firewall resets the connection. 368 tests have been run under this domain since 2012-04-02, the most recent on 2026-08-06.
The site itself
http://caltech.eduNot blockedhttps://caltech.eduNot blockedhttp://www.caltech.eduas of 2026Not blockedhttps://www.caltech.eduas of 2026Not blockedPages and subdomains (14)
http://vpn.caltech.eduas of 2026Not blockedhttp://jpix.caltech.eduNot enough datahttp://falun.caltech.eduUnresolvablehttp://www.imss.caltech.eduas of 2025Not blockedhttp://jensenlab.caltech.eduas of 2026Not blockedhttps://ned.ipac.caltech.eduas of 2025Not blockedhttp://its.caltech.edu/%7EfalunUnresolvablehttp://www.cco.caltech.edu/%7EfalunBlockedhttp://www.its.caltech.edu/%7EfalunNot blockedhttp://www.feynmanlectures.caltech.eduNot blockedhttps://www.feynmanlectures.caltech.edu/infoNot blockedhttps://www.feynmanlectures.caltech.edu/info/Not blockedhttps://gradoffice.caltech.edu/admissions/applyonlineNot blockedhttp://coolcosmos.ipac.caltech.edu/ask/166-How-far-away-is-the-Moon-as of 2026Not blockedAbout caltech.edu and the Great Firewall
Results vary across caltech.edu: of 18 URLs tested, 1 is blocked, 14 load normally and 3 have no conclusive recent result. The site itself, https://caltech.edu, loads normally. The Great Firewall resets the connection. 368 tests have been run under this domain since 2012-04-02, the most recent on 2026-08-06.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks caltech.edu. 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.