Can you open ce.columbia.edu/summer from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
2015first tested
2 mo agolast tested
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Other tested URLs on columbia.edu
Blocking varies across columbia.edu: 3 blocked vs 34 accessible among tested hosts.
http://columbia.eduas of 2026Not blockedhttps://columbia.eduas of 2026Not blockedhttp://gs.columbia.eduas of 2026Intermittenthttp://ce.columbia.eduNot enough datahttp://www.columbia.eduNot blockedhttp://ssol.columbia.eduNot blockedhttp://wind.columbia.eduUnresolvablehttps://www.columbia.eduNot blockedhttps://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.eduas of 2025Intermittenthttp://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 blockedhttps://harriman.columbia.eduas of 2026Not blockedhttp://afe.easia.columbia.eduNot blockedhttp://canvas.gsb.columbia.eduNot blockedhttp://cubmail.cc.columbia.eduUnresolvablehttps://canvas.gsb.columbia.eduas of 2026Not blockedhttp://courseworks.columbia.eduNot blockedhttp://engineering.columbia.eduNot 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/regfaqIntermittenthttp://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 blockedEach verdict covers the last 90 days of tests, as on that URL's own page.
Frequently asked questions
Is ce.columbia.edu/summer blocked in mainland China right now?
As of the last test on 2026-06-02, ce.columbia.edu/summer is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
http://ce.columbia.edu/summer · JSON