Can you open cdn-edgecast.optimizely.com/js/42.js 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.
2017first tested
5 mo agolast tested
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Frequently asked questions
Is cdn-edgecast.optimizely.com/js/42.js blocked in mainland China right now?
As of the last test on 2026-03-10, cdn-edgecast.optimizely.com/js/42.js is not resolvable from anywhere we test in mainland China, based on GreatFire's live Great Firewall measurements.
http://cdn-edgecast.optimizely.com/js/42.js · JSON