Generated: 2017-11-20T00:00:00Z -- 2017-11-20T00:05:13Z

Disclaimer:

The following report was generated automatically. Packet loss and network issues may have introduced false positives. Please verify the results before taking action.
You can report issues with this report to: marka@isc.org

Why you should care:

Most recursive resolvers now support EDNS. Lack of EDNS support in authoritative servers results in additional queries being made as the recursive servers need to retry with plain DNS and results in slower DNS resolution.

Not answering EDNS queries is particularly bad as that is indistingishable from packet loss.

Incorrect EDNS behaviour when presented with unknown EDNS versions and EDNS options can result in DNS resolution failures and/or DNSSEC validation failures.

Failure to run fully EDNS compliant nameservers will make it hard to deploy developments like DNS COOKIES which provides mitigation against DNS amplification attacks, off path spoofing resistance, RRL advoidance and excessive resource usage.

Codes

ok - test passed.
badvers - BADVERS returned.
badversion - expected EDNS version not found.
echoed - EDNS option echoed back.
formerr - FORMERR returned.
mbz - EDNS flags echoed back.
nodo - EDNS DO flag not echoed.
noopt - OPT record not found when expected. nosoa - SOA not found when expected.
notimp - NOTIMP returned.
refused - REFUSED returned.
servfail - SERVFAIL returned.
soa - SOA found when not expected.
status - expected status code not found.
toobig - UDP response bigger that advertised buffer size.
version - expected EDNS version not found.
reset - TCP connection reset.
timeout - lookup timed out.

Summary

Of servers that responded at all:
6896 of 6915 (99.73%) responded to a EDNS version 0 query
6896 of 6915 (99.73%) responded to a EDNS unknown option
6892 of 6915 (99.67%) responded to a EDNS unknown flags
6887 of 6915 (99.60%) responded to a EDNS version 1 query
6887 of 6915 (99.60%) responded to a EDNS unknown version and option

6893 of 6915 (99.68%) of nameservers support EDNS
6861 of 6893 (99.54%) EDNS capable servers are all ok
6873 of 6893 (99.71%) EDNS capable servers support unknown EDNS versions
6891 of 6893 (99.97%) EDNS capable servers support unknown EDNS options
6887 of 6893 (99.91%) EDNS capable servers support unknown EDNS flags
6873 of 6893 (99.71%) EDNS capable servers support unknown EDNS version and options
6888 of 6893 (99.93%) EDNS capable servers support DO=1

3037 of 6893 (44.06%) EDNS capable servers return a NSID option
841 of 6893 (12.20%) EDNS capable servers return a EXPIRE option
95 of 6893 (1.38%) EDNS capable servers return a SUBNET option
348 of 6893 (5.05%) EDNS capable servers return a Server EDNS COOKIE option

Details:

No Addresses Records Found (8/13898)

ci. ci.cctld.authdns.ripe.net: no address records found (NXDOMAIN)
ci. ns1.ird.fr: no address records found (NXDOMAIN)
cm. cm.cctld.authdns.ripe.net: no address records found (NXDOMAIN)
et. et.cctld.authdns.ripe.net: no address records found (NXDOMAIN)
ni. ns.cr: no address records found
xn--fzc2c9e2c. ns3.ac.lk: no address records found (NXDOMAIN)
xn--xkc2al3hye2a. ns3.ac.lk: no address records found (NXDOMAIN)
xn--ygbi2ammx. idn.pnina.ps: no address records found (NXDOMAIN)

DNS lookup of zone SOA failed (88/13898)

(dig +noedns +norec soa $zone @$server)
expect: status: NOERROR
expect: SOA record

at. @2a02:568:20:1::d (d.ns.at.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
az. @194.87.0.8 (ns.demos.su.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
az. @194.87.0.9 (ns.demos.su.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
az. @2a00:1c88:d01:15::9 (ns.demos.su.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
az. @2a00:1c88:d01:15::8 (ns.demos.su.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
bd. @2407:5000:88:5::3 (dns.bd.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
cf. @2a04:1b00:4::1 (a.ns.cf.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
cf. @2a04:1b00:6::1 (c.ns.cf.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
cn. @2001:dc7::1 (a.dns.cn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
dm. @199.127.196.35 (ns2.nic.dm.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
dz. @2001:4340:1030:2::2 (ns1.nic.dz.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ee. @2a02:88:0:21::2 (ee.aso.ee.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
eg. @193.227.1.1 (frcu.eun.eg.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
fj. @2001:dd8:0:1:21d:9ff:fe6d:d5cf (manu.usp.ac.fj.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
fj. @2001:dd8:0:1:20c:29ff:fe9e:3eec (teri.usp.ac.fj.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
fj. @128.32.136.3 (adns1.berkeley.edu.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
fj. @2607:f140:ffff:fffe::3 (adns1.berkeley.edu.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
fj. @128.32.136.14 (adns2.berkeley.edu.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
fj. @2607:f140:ffff:fffe::e (adns2.berkeley.edu.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
fk. @141.1.27.251 (euro-ns3.cw.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=failed
ga. @2a04:1b00:c::1 (a.ns.ga.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ga. @2a04:1b00:e::1 (c.ns.ga.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
gq. @2a04:1b00:10::1 (a.ns.gq.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
gq. @2a04:1b00:12::1 (c.ns.gq.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
jm. @200.9.115.2 (ns.utechjamaica.edu.jm.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
jo. @193.188.69.19 (jordan1st.nic.gov.jo.): dns=noaa edns=noaa edns1=ok edns@512=noaa ednsopt=noaa edns1opt=ok do=noaa ednsflags=noaa optlist=noaa signed=noaa ednstcp=noaa
ke. @196.1.4.130 (mzizi.kenic.or.ke.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ke. @2001:43f8:10::3 (mzizi.kenic.or.ke.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
kr. @2001:dcc:5::100 (e.dns.kr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
kr. @2001:dc5:a::1 (g.dns.kr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=connection-refused
kw. @202.12.29.59 (sec1.apnic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=formerr signed=servfail ednstcp=servfail
kw. @2001:dc0:2001:a:4608::59 (sec1.apnic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=formerr signed=servfail ednstcp=servfail
kw. @192.5.4.1 (sns-pb.isc.org.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
kw. @2001:500:2e::1 (sns-pb.isc.org.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
ml. @2a04:1b00::1 (a.ns.ml.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ml. @2a04:1b00:2::1 (c.ns.ml.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
mn. @202.72.241.5 (ns2.magic.mn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
mr. @41.188.65.193 (ns1.nic.mr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ms. @128.223.32.35 (phloem.uoregon.edu.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
ms. @2001:468:d01:20::80df:2023 (phloem.uoregon.edu.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
ms. @199.7.90.2 (mnidns1.mninet.ms.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
mz. @196.216.168.40 (ns-mz.afrinic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
ne. @194.51.3.49 (bow.rain.fr.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
ne. @196.216.168.45 (ns-ne.afrinic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
ne. @2001:43f8:120::45 (ns-ne.afrinic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
ni. @200.62.64.1 (ns.tmx.com.ni.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
nr. @202.144.128.200 (ns2.cenpac.net.nr.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
nr. @2405:d000:0:100::200 (ns2.cenpac.net.nr.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
pa. @168.77.8.4 (ns.nic.pa.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=connection-refused
pr. @194.0.11.111 (pr-dns.denic.de.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ren. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok
td. @196.216.168.31 (ns-td.afrinic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
td. @2001:43f8:120::31 (ns-td.afrinic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
tg. @108.61.25.122 (ns2.admin.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
tg. @2001:19f0:300:1007::cafe (ns2.admin.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
tg. @188.165.33.42 (ns5.admin.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
tg. @2001:41d0:8:5c79::3 (ns5.admin.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
tg. @80.248.64.20 (tld.cafe.tg.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
top. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok
tr. @2001:a98:10:eeee::42 (ns42.nic.tr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
va. @2001:67c:e0::123 (va.cctld.authdns.ripe.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid signed=servfail ednstcp=servfail
ve. @2001:1338::2 (ns1.nic.ve.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ve. @2001:1338::3 (ns2.nic.ve.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ve. @150.185.130.16 (azmodan.ula.ve.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
vn. @2001:dc8:1:2::105 (b.dns-servers.vn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
wang. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok
xn--3e0b707e. @2001:dcc:5::100 (e.dns.kr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--3e0b707e. @2001:dc5:a::1 (g.dns.kr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=connection-refused
xn--54b7fta0cc. @2407:5000:88:2::3 (bayanno.btcl.net.bd.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--54b7fta0cc. @2407:5000:88:1::2 (ekushey.btcl.net.bd.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--fiqs8s. @2001:dc7:fffe::1 (h.dns.cn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--fiqs8s. @2001:dc7:ffff::1 (i.dns.cn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--fiqz9s. @2001:dc7:fffe::1 (h.dns.cn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--fiqz9s. @2001:dc7:ffff::1 (i.dns.cn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--hxt814e. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok
xn--imr513n. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok
xn--j1amh. @212.1.66.247 (nsi.uanic.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
xn--j1amh. @2607:5300:60:2e43::5 (dns1.u-registry.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--l1acc. @202.170.80.40 (ns2.idn.mn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--lgbbat1ad8j. @2001:4340:1030:2::4 (idn1.nic.dz.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--mgbayh7gpa. @193.188.69.19 (jordan1st.nic.gov.jo.): dns=nosoa,noaa edns=nosoa,noaa edns1=ok edns@512=noaa ednsopt=nosoa,noaa edns1opt=ok do=nosoa,noaa ednsflags=nosoa,noaa optlist=nosoa,noaa signed=nosoa,noaa ednstcp=noaa
xn--node. @2a04:1b00:8::4 (a.xn--node.globalanycastcloud.freenom.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--node. @2a04:1b00:a::4 (c.xn--node.globalanycastcloud.freenom.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--ses554g. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok
ye. @2a02:2718:4::33 (ns1.yemen.net.ye.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ye. @2a02:e280:8:d000::34 (sah1.ye.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
ye. @2a02:e280:8:d000::35 (sah2.ye.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
zw. @204.59.1.222 (ns2.gip.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail

EDNS not supported (3/13898)

(dig +edns +norec soa $zone @$server)
expect: status: NOERROR
expect: SOA record to be present
expect: OPT record to be present
expect: EDNS Version 0 in response
See RFC6891

If you do not wish to support EDNS you should still respond to the query. You can ignore the OPT record and respond to the query as if the OPT record was not present or you can respond with one of the error codes: FORMERR or NOTIMP.

im. @217.23.163.140 (hoppy.iom.com.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=noopt signed=noopt ednstcp=noopt
im. @217.23.160.50 (barney.advsys.co.uk.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=noopt signed=noopt ednstcp=noopt
im. @80.168.83.242 (pebbles.iom.com.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=noopt signed=noopt ednstcp=noopt

EDNS(0) version not handled correctly (7/13799)

(dig +edns +norec soa $zone @$server)
expect: status: NOERROR
expect: SOA record to be present
expect: OPT record to be present
expect: EDNS Version 0 in response
See RFC6891

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
gn. @77.72.229.254 (fork.sth.dnsnode.net.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
lixil. @37.209.198.4 (l.gmoregistry.net.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire signed=ok,yes ednstcp=ok
xn--30rr7y. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok
xn--3bst00m. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok
xn--45q11c. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok

Unknown EDNS version not handled correctly (27/13799)

(dig +edns=1 +norec soa $zone @$server)
expect: status: BADVERS
expect: SOA record to NOT be present
expect: OPT record to be present
expect: EDNS Version 0 in response
See RFC6891, 6.1.3. OPT Record TTL Field Use

Timeouts on this test and edns1opt and possibly ednsflags indicate a badly configured firewall that is dropping packets just because the EDNS version is not zero. This breaks EDNS version negotiation. There is no known security flaw that will be triggers by allowing these packets through to the server.

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
ge. @212.72.130.11 (ns.nic.ge.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
kp. @175.45.176.15 (ns1.kptc.kp.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
kp. @175.45.176.16 (ns2.kptc.kp.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
lb. @193.188.128.14 (zeina.aub.edu.lb.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok,expire,cookie,subnet signed=ok,yes ednstcp=ok
mil. @199.252.154.234 (eur1.nipr.mil.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=timeout ednsflags=ok optlist=timeout signed=timeout ednstcp=ok
mp. @202.128.29.2 (ns1.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
mp. @202.128.29.135 (ns2.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
mp. @75.101.129.89 (ns3.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
mp. @75.101.133.101 (ns4.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
np. @202.52.255.5 (shikhar.mos.com.np.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
ps. @213.244.82.147 (dns1.gov.ps.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
sa. @86.111.192.9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
sa. @2001:67c:130:410::9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
samsung. @119.81.172.206 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
samsung. @2401:c900:1201:136::5 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
sd. @196.29.180.14 (ans1.canar.sd.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok ednstcp=ok
vn. @203.119.73.105 (b.dns-servers.vn.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
vu. @202.80.32.9 (ns1-cctld.vunic.vu.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
xn--30rr7y. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok
xn--3bst00m. @119.167.248.154 (e.zdnscloud.com.): dns=timeout edns=timeout edns1=timeout edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=ok
xn--cg4bki. @119.81.172.206 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
xn--cg4bki. @2401:c900:1201:136::5 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
xn--mgberp4a5d4ar. @86.111.192.9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
xn--mgberp4a5d4ar. @2001:67c:130:410::9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
xn--ygbi2ammx. @213.244.82.147 (dns1.gov.ps.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok

OPT not included in truncated response (2/13799)

(dig +edns +dnssec +bufsize=512 +norec +ignore dnskey $zone @$server)
expect: status: NOERROR
expect: OPT record to be present
expect: UDP DNS message size to be less than or equal to 512 bytes
See RFC6891, 7. Transport Considerations

This test requires that there be a signed DNSKEY RRset at the zone apex to trigger truncation for the test to be valid. Errors may be under reported as a result.

timeout and notimp may be due to mishandling of DNSKEY by the nameserver.

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt

Unknown EDNS options not correctly handled (3/13799)

(dig +ednsopt=100 +norec soa $zone @$server)
expect: status: NOERROR
expect: SOA record to be present
expect: OPT record to be present
expect: OPT=100 to not be present
See RFC6891, 6.1.2 Wire Format

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
sharp. @37.209.198.4 (l.gmoregistry.net.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=timeout edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire signed=ok,yes ednstcp=ok

Unknown EDNS version + unknown EDNS options not correctly handled (25/13799)

(dig +ednsopt=100 +edns=1 +norec soa $zone @$server)
expect: status: BADVERS
expect: SOA record to NOT be present
expect: OPT record to be present
expect: OPT=100 to not be present
expect: EDNS Version 0 in response
See RFC6891

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
ge. @212.72.130.11 (ns.nic.ge.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
kp. @175.45.176.15 (ns1.kptc.kp.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
kp. @175.45.176.16 (ns2.kptc.kp.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
lb. @193.188.128.14 (zeina.aub.edu.lb.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok,expire,cookie,subnet signed=ok,yes ednstcp=ok
mil. @199.252.154.234 (eur1.nipr.mil.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=timeout ednsflags=ok optlist=timeout signed=timeout ednstcp=ok
mp. @202.128.29.2 (ns1.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
mp. @202.128.29.135 (ns2.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
mp. @75.101.129.89 (ns3.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
mp. @75.101.133.101 (ns4.nic.mp.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
np. @202.52.255.5 (shikhar.mos.com.np.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=ok
ps. @213.244.82.147 (dns1.gov.ps.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
sa. @86.111.192.9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
sa. @2001:67c:130:410::9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
samsung. @119.81.172.206 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
samsung. @2401:c900:1201:136::5 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
sd. @196.29.180.14 (ans1.canar.sd.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok ednstcp=ok
vn. @203.119.73.105 (b.dns-servers.vn.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
vu. @202.80.32.9 (ns1-cctld.vunic.vu.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
xn--cg4bki. @119.81.172.206 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
xn--cg4bki. @2401:c900:1201:136::5 (ns1.dns.samsung.): dns=ok edns=ok edns1=noerror,badversion,soa edns@512=ok ednsopt=ok edns1opt=noerror,badversion,soa do=ok ednsflags=ok optlist=ok,nsid signed=ok,yes ednstcp=ok
xn--mgberp4a5d4ar. @86.111.192.9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
xn--mgberp4a5d4ar. @2001:67c:130:410::9 (ns1.nic.net.sa.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
xn--ygbi2ammx. @213.244.82.147 (dns1.gov.ps.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok

EDNS + DO=1 not handled correctly (6/13799)

(dig +dnssec +norec soa $zone @$server)
expect: status: NOERROR
expect: SOA record to be present
expect: OPT record to be present
expect: EDNS Version 0 in response
expect: DO flag in response if RRSIG is present in response
See RFC3225

Timeouts on this test (and signed) alone can indicate fragmentation issues at the sender. This would need to be confirmed with more testing.

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
mil. @199.252.154.234 (eur1.nipr.mil.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=timeout ednsflags=ok optlist=timeout signed=timeout ednstcp=ok
ua. @216.218.215.27 (he1.ns.ua.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=nodo ednsflags=ok optlist=ok signed=nodo,yes ednstcp=nodo
ua. @2001:470:2e:1::27 (he1.ns.ua.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=nodo ednsflags=ok optlist=ok signed=nodo,yes ednstcp=nodo
xn--fiq64b. @119.167.248.154 (e.zdnscloud.com.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok

Unknown EDNS flags are not correctly handled (9/13799)

(dig +ednsflags=0x80 +norec soa $zone @$server)
expect: status: NOERROR
expect: SOA record to be present
expect: OPT record to be present
expect: MBZ not to be present
expect: EDNS Version 0 in response
See RFC6891, 6.1.4 Flags

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
kp. @175.45.176.15 (ns1.kptc.kp.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
kp. @175.45.176.16 (ns2.kptc.kp.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
lb. @193.188.128.14 (zeina.aub.edu.lb.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok,expire,cookie,subnet signed=ok,yes ednstcp=ok
ps. @213.244.82.147 (dns1.gov.ps.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok
suzuki. @37.209.194.4 (b.gmoregistry.net.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=timeout optlist=ok,nsid,expire signed=ok,yes ednstcp=ok
xn--fiq64b. @119.167.248.154 (e.zdnscloud.com.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok
xn--ygbi2ammx. @213.244.82.147 (dns1.gov.ps.): dns=ok edns=ok edns1=timeout edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok ednstcp=ok

TCP Not Supported

(dig +norec +edns +dnssec +bufsize=512 +noad +vc dnskey -q $zone @$server)

et. @213.55.64.36 (ns1.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
et. @213.55.64.38 (ns2.telecom.net.et.): dns=ok edns=noopt edns1=noerror,noopt,soa edns@512=noopt ednsopt=noopt edns1opt=noerror,noopt,soa do=noopt ednsflags=noopt optlist=ok,nsid signed=noopt ednstcp=noopt
jp. @156.154.100.5 (c.dns.jp.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,expire signed=ok,yes ednstcp=reset
ua. @216.218.215.27 (he1.ns.ua.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=nodo ednsflags=ok optlist=ok signed=nodo,yes ednstcp=nodo
ua. @2001:470:2e:1::27 (he1.ns.ua.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=nodo ednsflags=ok optlist=ok signed=nodo,yes ednstcp=nodo


© 2017 Internet Systems Consortium