Is www1.columbia.edu/sec/cu/isso/OPT_Reporting.html blocked in mainland China?

Can you open www1.columbia.edu/sec/cu/isso/OPT_Reporting.html from mainland China?

Yes.

All 1 recent conclusive tests connected normally.

2015first tested

0/1disrupted · last 90 days

13 d agolast tested

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Other tested URLs on columbia.edu

Blocking varies across columbia.edu: 3 blocked vs 33 accessible among tested hosts.

Each verdict covers the last 90 days of tests, as on that URL's own page.

Frequently asked questions

Is www1.columbia.edu/sec/cu/isso/OPT_Reporting.html blocked in mainland China right now?

As of the last test on 2026-07-17, www1.columbia.edu/sec/cu/isso/OPT_Reporting.html is not blocked in mainland China, based on GreatFire's live Great Firewall measurements.

https://www1.columbia.edu/sec/cu/isso/OPT_Reporting.html · JSON