GreatFire

ddns.us

Mixed

Results vary across ddns.us: of 64 URLs tested, 25 are blocked, 8 load normally and 31 have no conclusive recent result. The site itself, http://ddns.us, loads normally. The Great Firewall silently drops its packets so requests time out, poisons its DNS and blocks the connection outright. 1,802 tests have been run under this domain since 2015-03-10, the most recent on 2026-08-17.

Timeout / silent drop 22 DNS poisoning 21 Connection failed 6 Connection reset 3
64URLs tested
25blocked
1,802tests all-time
2015first tested
18 h agolast tested

The site itself

http://ddns.usas of 2026Not blocked

Pages and subdomains (63)

http://4u.ddns.usNot enough datahttp://68.ddns.usNot enough datahttp://an.ddns.usNot enough datahttp://110.ddns.usUnresolvablehttp://119.ddns.usUnresolvablehttp://4us.ddns.usUnresolvablehttp://the.ddns.usNot enough datahttp://eco.ddns.usNot enough datahttp://901.ddns.usas of 2026Blockedhttp://941.ddns.usUnresolvablehttp://069.ddns.usNot enough datahttp://peh.ddns.usNot enough datahttp://sey.ddns.usNot enough datahttp://mal.ddns.usNot enough datahttp://mid.ddns.usNot enough datahttp://mix.ddns.usNot enough datahttp://sel.ddns.usNot enough datahttp://doc.ddns.usNot enough datahttp://you.ddns.usNot enough datahttp://394.ddns.usNot enough datahttp://rya.ddns.usNot enough datahttp://hug.ddns.usUnresolvablehttp://aas.ddns.usNot enough datahttp://mom.ddns.usNot enough datahttp://buy.ddns.usNot enough datahttp://ing.ddns.usNot enough datahttp://all.ddns.usNot enough datahttp://442.ddns.usas of 2026Blockedhttp://cup.ddns.usNot blockedhttp://hoc.ddns.usBlockedhttp://lod.ddns.usas of 2026Not blockedhttp://737.ddns.usas of 2026Blockedhttp://cit.ddns.usas of 2026Blockedhttp://vag.ddns.usas of 2026Blockedhttp://oka.ddns.usas of 2025Not blockedhttp://vim.ddns.usas of 2026Blockedhttp://yex.ddns.usas of 2025Not blockedhttp://oke8.ddns.usBlockedhttp://bug2.ddns.usas of 2026Blockedhttp://oke1.ddns.usas of 2025Not blockedhttp://baa3.ddns.usas of 2026Blockedhttp://lek2.ddns.usas of 2026Blockedhttp://nou7.ddns.usBlockedhttp://eye3.ddns.usas of 2026Blockedhttp://gap3.ddns.usas of 2026Blockedhttp://rob3.ddns.usBlockedhttp://dim9.ddns.usas of 2026Blockedhttp://the4.ddns.usNot enough datahttp://pig6.ddns.usNot enough datahttp://poi8.ddns.usNot enough datahttp://poi5.ddns.usNot enough datahttp://dog1.ddns.usNot enough datahttp://nou7.ddns.us/ohas of 2026Not blockedhttp://lek2.ddns.us/xb579as of 2026Blockedhttp://eye3.ddns.us/WsLUZas of 2026Blockedhttp://rob3.ddns.us/xtr/413as of 2026Blockedhttp://hum4.ddns.us/xtr/109as of 2026Blockedhttp://hum4.ddns.us/xtr/107as of 2026Blockedhttp://oke1.ddns.us/mp4/news86/2016/03/WEB_s31369.mp4as of 2026Blockedhttp://oms3.ddns.us/mp4/news886/2016/02/31219_335999.mp4as of 2026Blockedhttp://din8.ddns.us/mp4/news886/2016/02/31219_335999.mp4as of 2025Not blockedhttp://baa3.ddns.us/mp4/mhph/2015/10/SaveFLGChildren.mp4as of 2025Blockedhttp://rob3.ddns.us/mp4/news829/2016/05/31770_341782.mp4Blocked

About ddns.us and the Great Firewall

Is ddns.us blocked in mainland China?

Results vary across ddns.us: of 64 URLs tested, 25 are blocked, 8 load normally and 31 have no conclusive recent result. The site itself, http://ddns.us, loads normally. The Great Firewall silently drops its packets so requests time out, poisons its DNS and blocks the connection outright. 1,802 tests have been run under this domain since 2015-03-10, the most recent on 2026-08-17.

How can I reach ddns.us from mainland China?

A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks ddns.us. GreatFire runs GreatFire VPN; the Analyzer also tests the domains of many VPN and proxy providers, so you can check whether one is reachable before relying on it.

Elsewhere on the site

Most-blocked .us domainsEvery tested URL under ddns.us

Each URL's status is its verdict over the last 90 days, the same one its own page headlines.