All name servers reply SERVFAIL, at least from some network operators (mostly in Europe?) % dig @ns41.domaincontrol.com. SOA citymize.com ; <<>> DiG 9.9.5-4-Debian <<>> @ns41.domaincontrol.com. SOA citymize.com ; (2 servers found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 21923 ;; flags: qr rd; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; Query time: 60 msec ;; SERVER: 2607:f208:206::15#53(2607:f208:206::15) ;; WHEN: Mon Sep 01 11:18:58 CEST 2014 ;; MSG SIZE rcvd: 12 % dig -4 @ns64.domaincontrol.com SOA stagedoor.fm ; <<>> DiG 9.9.5-4-Debian <<>> -4 @ns64.domaincontrol.com SOA stagedoor.fm ; (1 server found) ;; global options: +cmd ;; Got answer: ;; ->>HEADER<<- opcode: QUERY, status: SERVFAIL, id: 57824 ;; flags: qr rd; QUERY: 0, ANSWER: 0, AUTHORITY: 0, ADDITIONAL: 0 ;; WARNING: recursion requested but not available ;; Query time: 24 msec ;; SERVER: 208.109.255.42#53(208.109.255.42) ;; WHEN: Mon Sep 01 11:38:49 CEST 2014 ;; MSG SIZE rcvd: 12 Started around 0907 UTC according to Twitter.