Generated: 2018-12-16T00:00:00Z -- 2018-12-16T00:05:30Z

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:
6864 of 6879 (99.78%) responded to a EDNS version 0 query
6864 of 6879 (99.78%) responded to a EDNS unknown option
6862 of 6879 (99.75%) responded to a EDNS unknown flags
6858 of 6879 (99.69%) responded to a EDNS version 1 query
6858 of 6879 (99.69%) responded to a EDNS unknown version and option

6863 of 6879 (99.77%) of nameservers support EDNS
6834 of 6863 (99.58%) EDNS capable servers are all ok
6848 of 6863 (99.78%) EDNS capable servers support unknown EDNS versions
6860 of 6863 (99.96%) EDNS capable servers support unknown EDNS options
6857 of 6863 (99.91%) EDNS capable servers support unknown EDNS flags
6847 of 6863 (99.77%) EDNS capable servers support unknown EDNS version and options
6856 of 6863 (99.90%) EDNS capable servers support DO=1

3185 of 6863 (46.41%) EDNS capable servers return a NSID option
967 of 6863 (14.09%) EDNS capable servers return a EXPIRE option
633 of 6863 (9.22%) EDNS capable servers return a SUBNET option
599 of 6863 (8.73%) EDNS capable servers return a Server EDNS COOKIE option

Details:

No Addresses Records Found (7/13776)

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
tg. tld.cafe.tg: 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 (89/13776)

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

ba. @185.38.108.108 (ba.anycastdns.cz.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
ba. @185.28.194.194 (ba.anycastdns.cz.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
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
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
mc. @193.0.9.92 (mc.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
mc. @2001:67c:e0::92 (mc.cctld.authdns.ripe.net.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail,nsid,subnet signed=servfail ednstcp=servfail
ne. @194.51.3.49 (bow.rain.fr.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
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=timeout
np. @192.189.54.17 (yarrina.connect.com.au.): dns=servfail edns=servfail edns1=ok edns@512=servfail ednsopt=servfail edns1opt=ok do=servfail ednsflags=servfail optlist=servfail signed=servfail ednstcp=servfail
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
xn--80ao21a. @194.0.21.5 (ns.nic.kz.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused signed=refused ednstcp=refused
xn--d1alf. @78.104.145.4 (dns-mk.univie.ac.at.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused,nsid,cookie,subnet signed=refused ednstcp=refused
xn--d1alf. @2001:628:453:bb::4 (dns-mk.univie.ac.at.): dns=refused edns=refused edns1=ok edns@512=refused ednsopt=refused edns1opt=ok do=refused ednsflags=refused optlist=refused,nsid,cookie,subnet signed=refused ednstcp=refused
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

af. @185.17.236.111 (ns.coccaregistry.org.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=ok
ci. @213.136.100.83 (ns1.nic.ci.): 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
fj. @144.120.8.10 (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
gm. @196.49.1.87 (ns2.nic.gm.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
iq. @194.117.57.100 (ns1.cmc.iq.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ir. @193.189.123.2 (a.nic.ir.): 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
kn. @185.17.236.111 (ns.coccaregistry.org.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ni. @200.9.187.2 (ns2.ni.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
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=timeout
tg. @80.248.68.12 (ns2.nic.tg.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
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. @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
uz. @185.196.212.7 (ns4.uz.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=connection-refused
uz. @83.69.129.33 (ns6.uz.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=connection-refused
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
xn--1qqw23a. @42.83.130.1 (ta.ngtld.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--1qqw23a. @42.83.131.1 (tb.ngtld.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--1qqw23a. @42.83.132.1 (tc.ngtld.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--54b7fta0cc. @180.211.212.213 (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--55qx5d. @125.208.41.1 (b.ngtld.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--55qx5d. @125.208.42.1 (c.ngtld.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. @125.208.36.1 (l.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. @125.208.36.1 (l.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--io0a7i. @125.208.41.1 (b.ngtld.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--io0a7i. @125.208.42.1 (c.ngtld.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--j1amh. @212.1.66.247 (nsi.uanic.net.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=servfail
xn--j1amh. @195.123.1.7 (dns2.u-registry.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--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--mgba3a4f16a. @193.189.123.2 (a.nic.ir.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--mgbtx2b. @194.117.57.100 (ns1.cmc.iq.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
xn--xhq521b. @42.83.130.1 (ta.ngtld.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--xhq521b. @42.83.131.1 (tb.ngtld.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--xhq521b. @42.83.132.1 (tc.ngtld.cn.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
zm. @196.46.192.26 (ns1.zamnet.zm.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout

ad. @2a02:8060:32fa::b (dnsc.ad.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
ad. @2a02:8060:32fa::a (dnsm.ad.): 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
bd. @2407:5000:88:4::232 (surma.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
bd. @2407:5000:88:4::231 (jamuna.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
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
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
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
gr. @2001:678:7::4:10 (gr-m.ics.forth.gr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
lk. @2405:5400:3:1:203:143:29:3 (c.nic.lk.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
lk. @2402:d000:100c::129 (t.nic.lk.): 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::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
nr. @2403:f600:0:224::66 (ns0.cenpac.net.nr.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
nr. @2403:f600:0:225::9 (ns1.cenpac.net.nr.): 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. @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
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
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--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--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--mxtq1m. @2001:c08:175:128::175:128 (a.nic.xn--mxtq1m.): 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. @2a04:1b00:8::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
ye. @2a02:e280:8:d000::34 (sah1.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::35 (sah2.ye.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout
zw. @2c0f:f758:0:13::42 (ns2.telone.co.zw.): dns=timeout edns=timeout edns1=timeout edns@512=timeout ednsopt=timeout edns1opt=timeout do=timeout ednsflags=timeout optlist=timeout signed=timeout ednstcp=timeout

EDNS not supported (3/13776)

(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. @83.218.14.53 (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 (8/13677)

(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

cn. @195.219.8.90 (f.dns.cn.): dns=timeout edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok
cn. @66.198.183.65 (g.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=timeout edns1opt=ok do=timeout ednsflags=ok optlist=ok signed=timeout ednstcp=ok
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=timeout edns=timeout edns1=timeout edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire signed=ok,yes ednstcp=ok
ms. @185.17.236.111 (ns.coccaregistry.org.): dns=timeout edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok signed=ok ednstcp=ok
xn--fiqz9s. @195.219.8.91 (m.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=timeout ednsopt=timeout edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok
xn--fiqz9s. @66.198.183.66 (n.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=ok optlist=timeout signed=timeout ednstcp=ok

Unknown EDNS version not handled correctly (19/13677)

(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
gn. @77.72.229.254 (fork.sth.dnsnode.net.): dns=timeout edns=timeout edns1=timeout edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire signed=ok,yes 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
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
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
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
vn. @2001:dc8:1:2::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--fiqs8s. @66.198.183.66 (n.dns.cn.): dns=ok edns=ok edns1=timeout edns@512=timeout ednsopt=ok edns1opt=timeout do=timeout ednsflags=timeout optlist=ok signed=timeout 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

OPT not included in truncated response (5/13677)

(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
xn--fiqs8s. @195.219.8.91 (m.dns.cn.): dns=ok edns=ok edns1=ok edns@512=timeout ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=timeout signed=ok,yes ednstcp=ok
xn--fiqs8s. @66.198.183.66 (n.dns.cn.): dns=ok edns=ok edns1=timeout edns@512=timeout ednsopt=ok edns1opt=timeout do=timeout ednsflags=timeout optlist=ok signed=timeout ednstcp=ok
xn--fiqz9s. @195.219.8.91 (m.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=timeout ednsopt=timeout edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok

Unknown EDNS options not correctly handled (4/13677)

(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

cn. @66.198.183.65 (g.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=timeout edns1opt=ok do=timeout ednsflags=ok optlist=ok signed=timeout ednstcp=ok
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
xn--fiqz9s. @195.219.8.91 (m.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=timeout ednsopt=timeout edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok

Unknown EDNS version + unknown EDNS options not correctly handled (20/13677)

(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

cn. @195.219.8.90 (f.dns.cn.): dns=timeout edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok
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
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
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
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
vn. @2001:dc8:1:2::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--fiqs8s. @66.198.183.66 (n.dns.cn.): dns=ok edns=ok edns1=timeout edns@512=timeout ednsopt=ok edns1opt=timeout do=timeout ednsflags=timeout optlist=ok signed=timeout ednstcp=ok
xn--fiqz9s. @195.219.8.91 (m.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=timeout ednsopt=timeout edns1opt=timeout do=ok ednsflags=timeout optlist=ok 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

EDNS + DO=1 not handled correctly (8/13677)

(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.

cn. @66.198.183.65 (g.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=timeout edns1opt=ok do=timeout ednsflags=ok optlist=ok signed=timeout ednstcp=ok
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
lk. @128.10.2.5 (pendragon.cs.purdue.edu.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=ok optlist=ok signed=timeout ednstcp=ok
pl. @2001:1a68:0:17::238 (f-dns.pl.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=ok optlist=ok,nsid,expire signed=timeout ednstcp=ok
pl. @2001:6d8:1001:1::252 (g-dns.pl.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=ok optlist=ok,nsid,expire signed=timeout ednstcp=ok
xn--fiqs8s. @66.198.183.66 (n.dns.cn.): dns=ok edns=ok edns1=timeout edns@512=timeout ednsopt=ok edns1opt=timeout do=timeout ednsflags=timeout optlist=ok signed=timeout ednstcp=ok
xn--fiqz9s. @66.198.183.66 (n.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=timeout ednsflags=ok optlist=timeout signed=timeout ednstcp=ok

Unknown EDNS flags are not correctly handled (8/13677)

(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

cn. @195.219.8.90 (f.dns.cn.): dns=timeout edns=timeout edns1=ok edns@512=ok ednsopt=ok edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok
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
xn--fiqs8s. @66.198.183.66 (n.dns.cn.): dns=ok edns=ok edns1=timeout edns@512=timeout ednsopt=ok edns1opt=timeout do=timeout ednsflags=timeout optlist=ok signed=timeout ednstcp=ok
xn--fiqz9s. @195.219.8.91 (m.dns.cn.): dns=ok edns=timeout edns1=ok edns@512=timeout ednsopt=timeout edns1opt=timeout do=ok ednsflags=timeout optlist=ok signed=ok,yes ednstcp=ok

TCP Not Supported

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

adac. @2a04:2b00:13cc::1:74 (b.nic.adac.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
bar. @2a04:2b00:13cc::1:56 (b.nic.bar.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
best. @2a04:2b00:13ee::109 (c.nic.best.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
ceo. @2a04:2b00:13cc::1:78 (b.nic.ceo.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
cf. @2a04:1b00:5::1 (b.ns.cf.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid signed=ok ednstcp=eof
epost. @2a04:2b00:13ee::85 (c.nic.epost.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
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
forum. @2a04:2b00:13ee::65 (c.nic.forum.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
gd. @2a04:2b00:13cc::1:88 (b.nic.gd.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
lpl. @2a04:2b00:13ee::92 (c.nic.lpl.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
lplfinancial. @2a04:2b00:13ee::93 (c.nic.lplfinancial.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
observer. @2a04:2b00:13ee::32 (c.nic.observer.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
rugby. @2a04:2b00:13cc::1:73 (b.nic.rugby.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
security. @2a04:2b00:13cc::1:68 (b.nic.security.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
sfr. @2a04:2b00:13cc::1:100 (b.nic.sfr.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
stc. @2a04:2b00:13cc::1:29 (b.nic.stc.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
viva. @2a04:2b00:13cc::1:28 (b.nic.viva.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
website. @2a04:2b00:13cc::1:52 (b.nic.website.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused
wiki. @2a04:2b00:13ee::30 (c.nic.wiki.): dns=ok edns=ok edns1=ok edns@512=ok ednsopt=ok edns1opt=ok do=ok ednsflags=ok optlist=ok,nsid,expire,cookie,subnet signed=ok,yes ednstcp=connection-refused


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