dyndns.org
Mixed
Results vary across dyndns.org: of 69 URLs tested, 10 are blocked, 1 is redirected to a server inside mainland China, 1 is disrupted some of the time, 3 load normally and 54 have no conclusive recent result. The Great Firewall resets the connection, silently drops its packets so requests time out and blocks the connection outright. 2,769 tests have been run under this domain since 2011-05-03, the most recent on 2026-08-15.
The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
The site itself
http://dyndns.orgas of 2026Blockedhttps://dyndns.orgNot blockedhttp://www.dyndns.orgBlockedPages and subdomains (66)
http://go.dyndns.orgNot enough datahttp://crm.dyndns.orgNot enough datahttp://ktam.dyndns.orgUnresolvablehttp://ribb.dyndns.orgUnresolvablehttp://vwtc.dyndns.orgUnresolvablehttp://crmnd.dyndns.orgUnresolvablehttp://91.go.dyndns.orgUnresolvablehttp://ignet.dyndns.orgNot enough datahttps://ueni.dyndns.orgas of 2026Not blockedhttp://pig-10.dyndns.orgUnresolvablehttp://sjhhhz.dyndns.orgUnresolvablehttp://itsvpn.dyndns.orgUnresolvablehttp://tggame.dyndns.orgas of 2026Blockedhttps://zupan.dyndns.orgNot enough datahttp://checkip.dyndns.orgas of 2026Blockedhttp://k25c2yf.dyndns.orgUnresolvablehttp://pigfarm.dyndns.orgUnresolvablehttp://unitrim.dyndns.orgUnresolvablehttp://2-floor.dyndns.orgas of 2026Intermittenthttp://uygurtv.dyndns.orgUnresolvablehttp://pandang.dyndns.orgUnresolvablehttp://steveli.dyndns.orgUnresolvablehttp://albania.dyndns.orgas of 2026Blockedhttp://hswchan.dyndns.orgUnresolvablehttps://pisnap.dyndns.orgNot enough datahttp://orangepc.dyndns.orgUnresolvablehttp://petrucci.dyndns.orgUnresolvablehttp://chan1852.dyndns.orgUnresolvablehttp://luchilin.dyndns.orgUnresolvablehttp://gpstuner.dyndns.orgUnresolvablehttp://morgan13.dyndns.orgUnresolvablehttp://china.go.dyndns.orgUnresolvablehttp://t0299854.dyndns.orgUnresolvablehttp://audiomex.dyndns.orgBlockedhttp://protongd.dyndns.orgRedirected inside mainland Chinahttp://myddns00.dyndns.orgUnresolvablehttps://hehehaha.dyndns.orgUnresolvablehttp://peterburk.dyndns.orgUnresolvablehttp://sshtohome.dyndns.orgNot enough datahttp://shimesaba.dyndns.orgUnresolvablehttp://gappelman.dyndns.orgNot enough datahttp://puppethead.dyndns.orgUnresolvablehttp://eightohtwo.dyndns.orgNot enough datahttp://qwertyuiop.dyndns.orgNot enough datahttp://vr2kj.dyndns.org:8073Not enough datahttp://damefortune.dyndns.orgUnresolvablehttp://hektablocks.dyndns.orgUnresolvablehttp://ndrive-bulk.dyndns.orgUnresolvablehttp://Lechfeldsrv.dyndns.orgUnresolvablehttp://explorerhome.dyndns.orgUnresolvablehttp://fortressauto.dyndns.orgUnresolvablehttp://hswchan.dyndns.org:5000Unresolvablehttp://erogamescape.dyndns.orgBlockedhttp://tmwebservice.dyndns.orgas of 2026Blockedhttp://uygurtv.dyndns.org/chinaUnresolvablehttp://luchilin.dyndns.org:8080Unresolvablehttps://erogamescape.dyndns.orgNot enough datahttps://ueni.dyndns.org/dns-queryNot blockedhttp://tigermax.dyndns.org/bbs/forum.phpUnresolvablehttp://uygurtv.dyndns.org/china/news.htmUnresolvablehttp://bannyinventory.dyndns.org:8081/fmi/webdNot enough datahttp://radio74.dyndns.org:8080/rfianglais-96k.mp3as of 2026Blockedhttp://radio74.dyndns.org:8000/rfianglais-96k.mp3Not enough datahttp://radiozones.dyndns.org:8000/rfianglais-96k.mp3Blockedhttps://erogamescape.dyndns.org/~ap2/ero/toukei_kaisekiNot enough datahttps://erogamescape.dyndns.org/%7Eap2/ero/toukei_kaisekiNot enough dataAbout dyndns.org and the Great Firewall
Results vary across dyndns.org: of 69 URLs tested, 10 are blocked, 1 is redirected to a server inside mainland China, 1 is disrupted some of the time, 3 load normally and 54 have no conclusive recent result. The Great Firewall resets the connection, silently drops its packets so requests time out and blocks the connection outright. 2,769 tests have been run under this domain since 2011-05-03, the most recent on 2026-08-15.
Plain HTTP and HTTPS differ here: http://dyndns.org is blocked, https://dyndns.org is not blocked. The two are filtered by different means — an unencrypted request by the address and keywords it carries in the clear, an encrypted one by the server name in its TLS handshake — so one working while the other does not is normal.
A VPN or another circumvention tool routes the request outside mainland China, past the filtering that blocks dyndns.org. 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
dyndns.org is ranked #638 among the world's most-visited domains (Tranco).
Sites of similar popularity:googletagservices.comamazon.cawithgoogle.comyelp.com
Each URL's status is its verdict over the last 90 days, the same one its own page headlines.