Can you open 21.ubddns.org from mainland China?
Not sure yet.
There isn't enough recent data to reach a verdict.
2015first tested
2 mo agolast tested
Loading…
Other tested URLs on ubddns.org
Blocking varies across ubddns.org: 5 blocked vs 1 accessible among tested hosts.
http://ubddns.orgas of 2025Blockedhttp://u2.ubddns.orgUnresolvablehttp://ie.ubddns.orgUnresolvablehttp://88.ubddns.orgUnresolvablehttp://55.ubddns.orgUnresolvablehttp://72.ubddns.orgUnresolvablehttp://86.ubddns.orgUnresolvablehttp://26.ubddns.orgUnresolvablehttp://27.ubddns.orgNot enough datahttp://35.ubddns.orgas of 2024Blockedhttp://77.ubddns.orgNot enough datahttp://87.ubddns.orgUnresolvablehttp://62.ubddns.orgNot enough datahttp://95.ubddns.orgNot enough datahttp://92.ubddns.orgBlockedhttp://75.ubddns.orgNot enough datahttp://882.ubddns.orgNot enough datahttp://399.ubddns.orgNot enough datahttp://86.ubddns.org/vUnresolvablehttp://86.ubddns.org/tUnresolvablehttp://86.ubddns.org/pUnresolvablehttp://86.ubddns.org/fUnresolvablehttp://86.ubddns.org/cUnresolvablehttp://86.ubddns.org/dUnresolvablehttp://86.ubddns.org/hUnresolvablehttp://75.ubddns.org/fNot enough datahttp://u2.ubddns.org:81Unresolvablehttp://55.ubddns.org:81Unresolvablehttp://21.ubddns.org:81Not enough datahttp://86.ubddns.org/ttUnresolvablehttp://86.ubddns.org/ffUnresolvablehttp://86.ubddns.org/ddUnresolvablehttp://92.ubddns.org:81Not enough datahttp://75.ubddns.org/ffNot enough datahttp://4safe.ubddns.orgas of 2026Blockedhttps://4safe.ubddns.orgNot blockedhttp://ta-tpe.ubddns.orgNot enough datahttp://86.ubddns.org/readUnresolvablehttp://fylawsh.ubddns.orgUnresolvablehttp://86.ubddns.org:81/tvUnresolvablehttp://352.ubddns.org/go/9Not enough datahttp://375.ubddns.org/go/9Not enough datahttps://kevin38.ubddns.orgNot enough datahttp://86.ubddns.org:81/dayUnresolvablehttp://86.ubddns.org:81/mp4Unresolvablehttp://52.ubddns.org:81/dayNot enough datahttp://57.ubddns.org:81/dayas of 2024Blockedhttp://375.ubddns.org/t/2.htmlNot enough datahttp://75.ubddns.org/go/t5.htmlNot enough datahttp://352.ubddns.org/go/n2.htmlNot enough datahttp://352.ubddns.org/go/t2.htmlNot enough datahttp://375.ubddns.org/go/n2.htmlNot enough datahttp://375.ubddns.org/go/t2.htmlNot enough datahttp://75.ubddns.org/go/ts5.htmlNot enough datahttp://75.ubddns.org/e/index.htmlNot enough datahttp://375.ubddns.org/go/ns2.htmlNot enough datahttp://75.ubddns.org/tv/index.htmlNot enough datahttp://352.ubddns.org/t/index.htmlNot enough datahttp://375.ubddns.org/t/index.htmlNot enough datahttp://352.ubddns.org/tv/index.htmlNot enough datahttp://375.ubddns.org/tv/index.htmlNot enough datahttp://75.ubddns.org:81/e/index.htmlNot enough datahttp://352.ubddns.org/day/index.htmlNot enough datahttp://352.ubddns.org/t/ebook/2.htmlNot enough datahttp://375.ubddns.org/day/index.htmlNot enough datahttp://26.ubddns.org:81/tv/index.htmlUnresolvablehttp://86.ubddns.org?url=http%3A//86.ubddns.orgUnresolvableEach verdict covers the last 90 days of tests, as on that URL's own page.
Frequently asked questions
Is 21.ubddns.org blocked in mainland China right now?
As of the last test on 2026-06-13, 21.ubddns.org is not enough data in mainland China, based on GreatFire's live Great Firewall measurements.
http://21.ubddns.org · JSON