Can you open http://serc.carleton.edu/dmvideos/videos/roller_coaster.html from mainland China?
Sometimes.
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Access serc.carleton.edu with GreatFireVPN →Frequently asked questions
Is http://serc.carleton.edu/dmvideos/videos/roller_coaster.html blocked in mainland China right now?
As of the last test on 2026-05-30, http://serc.carleton.edu/dmvideos/videos/roller_coaster.html is 100% disrupted in mainland China, based on GreatFire's live Great Firewall measurements.
Why is http://serc.carleton.edu/dmvideos/videos/roller_coaster.html blocked in mainland China?
Access is unreliable — 100% of the last 1 conclusive tests showed interference.
Since when has http://serc.carleton.edu/dmvideos/videos/roller_coaster.html been blocked?
GreatFire has recorded interference with http://serc.carleton.edu/dmvideos/videos/roller_coaster.html from mainland China since 2017-07-30.
How can I access http://serc.carleton.edu/dmvideos/videos/roller_coaster.html from mainland China?
You need a circumvention tool such as a VPN. GreatFireVPN, built by GreatFire, is designed to bypass the Great Firewall and reach sites like serc.carleton.edu.
http://serc.carleton.edu/dmvideos/videos/roller_coaster.html · JSON