GreatFire

columbia.edu

Mixed

Results vary across columbia.edu: of 48 URLs tested, 3 are blocked, 3 are disrupted some of the time, 35 load normally and 7 have no conclusive recent result. The site itself, https://columbia.edu, loads normally. The Great Firewall blocks the connection outright, silently drops its packets so requests time out and resets the connection. 1,383 tests have been run under this domain since 2011-12-10, the most recent on 2026-08-18.

Connection failed 2 Timeout / silent drop 2 Connection reset 1
48URLs tested
3blocked
1,383tests all-time
2011first tested
1 d agolast tested

The site itself

http://columbia.eduas of 2026Not blockedhttps://columbia.eduNot blockedhttp://www.columbia.eduNot blockedhttps://www.columbia.eduNot blocked

Pages and subdomains (44)

http://gs.columbia.eduIntermittenthttp://ce.columbia.eduNot enough datahttp://ssol.columbia.eduas of 2026Not blockedhttp://wind.columbia.eduUnresolvablehttps://www1.columbia.eduas of 2026Not blockedhttp://tibet.columbia.eduas of 2026Not blockedhttp://www.cs.columbia.eduIntermittenthttp://soc.cs.columbia.eduas of 2026Not blockedhttp://vpn.cc.columbia.eduNot enough datahttps://my.tc.columbia.eduNot blockedhttp://sundial.columbia.eduNot enough datahttp://barnard.columbia.eduas of 2026Not blockedhttp://college.columbia.eduNot blockedhttps://www.cs.columbia.eduas of 2026Not blockedhttp://www.math.columbia.eduNot blockedhttp://www.columbia.edu/weaias of 2026Not blockedhttp://lionmail.columbia.eduas of 2026Blockedhttp://www8.gsb.columbia.eduas of 2026Not blockedhttp://apply.med.columbia.eduas of 2025Not blockedhttp://ce.columbia.edu/summerNot enough datahttps://harriman.columbia.eduas of 2026Not blockedhttp://afe.easia.columbia.eduNot blockedhttp://canvas.gsb.columbia.eduas of 2026Not blockedhttp://cubmail.cc.columbia.eduUnresolvablehttps://canvas.gsb.columbia.eduas of 2026Not blockedhttp://courseworks.columbia.eduas of 2026Not blockedhttp://engineering.columbia.eduas of 2026Not blockedhttp://worldleaders.columbia.eduas of 2026Not blockedhttps://courseworks2.columbia.eduas of 2026Not blockedhttp://lionmail.columbia.edu/loginBlockedhttp://www.columbia.edu/cu/falundafaas of 2026Blockedhttps://epiville.ccnmtl.columbia.eduNot blockedhttps://academiccommons.columbia.eduas of 2026Not blockedhttps://www.columbia.edu/cu/falundafaas of 2026Not blockedhttp://www.math.columbia.edu/~woit/wordpressNot blockedhttp://www.cs.columbia.edu/education/ms/regfaqas of 2026Intermittenthttp://afe.easia.columbia.edu/cosmos/index.htmNot blockedhttps://tibetanmaterialhistory.wikischolars.columbia.eduUnresolvablehttps://www1.columbia.edu/sec/cu/isso/OPT_Reporting.htmlNot blockedhttps://courseworks2.columbia.edu/courses/164868/quizzes/139313Not blockedhttps://jia.sipa.columbia.edu/master-narratives-disinformation-campaignsas of 2026Not blockedhttps://sso.tc.columbia.edu/app/salesforce/exkg9cr6guo6vsZ5m697/sso/samlas of 2026Not blockedhttps://art.afe.easia.columbia.edu/cgi-bin/museums/search.cgi/country?country_id=1Not blockedhttps://cas.columbia.edu/cas/login?SAMLRequest=fVJNb9QwEL0j8R8s3%2FMpgYq1SbW0qlipQNRNOXBz7Mmui+0JHmcX%2Fj3ebKu2B3p9fvM+xrO6%2FOMsO0Agg77hVV5yBl6hNn7X8Pv+Jrvgl+37dyuSzk5iPce9v4PfM1BkadKTWB4aPgcvUJIh4aUDElGJ7frrrajzUkwBIyq0nG2uG+5HGEZAfJB62KsJtLHj6N0vi+5hsANot blocked

About columbia.edu and the Great Firewall

Is columbia.edu blocked in mainland China?

Results vary across columbia.edu: of 48 URLs tested, 3 are blocked, 3 are disrupted some of the time, 35 load normally and 7 have no conclusive recent result. The site itself, https://columbia.edu, loads normally. The Great Firewall blocks the connection outright, silently drops its packets so requests time out and resets the connection. 1,383 tests have been run under this domain since 2011-12-10, the most recent on 2026-08-18.

How can I reach columbia.edu from mainland China?

A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks columbia.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

columbia.edu is ranked #1,013 among the world's most-visited domains (Tranco).

Sites of similar popularity:pbs.orggiphy.comtheconversation.comstatcounter.com

Most-blocked .edu domainsEvery tested URL under columbia.edu

Each URL's status is its verdict over the last 90 days, the same one its own page headlines.