Part of cisa.govAll clear4 tested URLs
Can you open https://us-cert.cisa.gov/ncas/current-activity from mainland China?
Yes.
All 1 recent conclusive tests connected normally.
2021first tested
0/1disrupted · last 90 days
29 d agolast tested
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Frequently asked questions
Is https://us-cert.cisa.gov/ncas/current-activity blocked in mainland China right now?
As of the last test on 2026-07-18, https://us-cert.cisa.gov/ncas/current-activity is not blocked in mainland China, based on GreatFire's live Great Firewall measurements.
https://us-cert.cisa.gov/ncas/current-activity · JSON