Can you open frs111.cs.princeton.edu from mainland China?
N/A.
This domain doesn't resolve anywhere we test — including our control outside mainland China — so it appears inactive or unregistered rather than blocked.
2011first tested
5 mo agolast tested
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Frequently asked questions
Is frs111.cs.princeton.edu blocked in mainland China right now?
As of the last test on 2026-02-17, frs111.cs.princeton.edu is not resolvable from anywhere we test in mainland China, based on GreatFire's live Great Firewall measurements.
http://frs111.cs.princeton.edu · JSON