The following nameservers incorrectly return BADVERS

Wed Jun 22 11:36:35 UTC 2016

The following servers for Alexa top 1M names incorrectly return
BADVERS to a DNS query with a EDNS option.

BADVERS is supposed to be used for EDNS version negotiation not
because you see a EDNS option.  Please contact your nameserver
vendor for a fix.

This error will result in DNS validation failures if you are
serving signed zones.  This error will also result in slower
DNS resolution.

Mark

a.myradns.at b.myradns.at ns1.careerhub.com.au ns2.careerhub.com.au
ns3.careerhub.com.au lyra.caixa.gov.br mira.caixa.gov.br ns1.divio.ch
ns2.divio.ch ns4.divio.ch ns2.ec.com.cn sns.ec.com.cn ns1.sina.com.cn
mecca.dlnu.edu.cn ns2.brainydns.com ns1.commonmx.com ns2.commonmx.com
ns1.derbycon.com ns2.derbycon.com ns3.derbycon.com ns4.derbycon.com
ns1.dnsnuts.com ns2.dnsnuts.com ns1.dockyard.com ns3.dockyard.com
ns2.domainmx.com ns1.energeticsource.com ns2.energeticsource.com
dev2.hastydns.com ns1.hastydns.com ns2.hastydns.com ns.inboxinc.com
ns3.inboxinc.com ns1.kirklanddc.com ns2.kirklanddc.com ns1.nawebu.com
ns2.nawebu.com ns3.nawebu.com ns1.pebblecode.com ns2.pebblecode.com
ns3.pebblecode.com ns1.pro-websolutions.com ns4.pro-websolutions.com
ns1.redmonddc.com ns2.redmonddc.com ns1.rentondc.com ns2.rentondc.com
ns1.smtmdns.com ns2.smtmdns.com ns1.torresdns.com ns2.torresdns.com
ns1.usecanvas.com ns2.usecanvas.com ns4.weddingful.com ns1.worlize.com
ns2.worlize.com a.myradns.de b.myradns.de ns3.zenjoy.eu ns1.tsp.gov
ns2.tsp.gov ns1.360dns.net ns2.360dns.net uns1.bhn.net uns2.bhn.net
ns1.bindhost.net ns2.bindhost.net itchy.earthlink.net
scratchy.earthlink.net a.myradns.net b.myradns.net c.myradns.net
resolver1.qwest.net resolver2.qwest.net sauthns1.qwest.net
sauthns2.qwest.net ns1-asia.sprintlink.net ns1-auth.sprintlink.net
ns2-asia.sprintlink.net ns2-auth.sprintlink.net ns3-asia.sprintlink.net
dns4.websolvers.net ns2.panmedia.co.nz ns1.collegiateschool.org
ns4.collegiateschool.org ns.min-financas.pt dns.ntu.edu.tw ntust.edu.tw
dns.ntust.edu.tw ns2.grade.us

-- 
Mark Andrews, ISC
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE:	+61 2 9871 4742		         INTERNET: marka at isc.org