messe-duesseldorf.de

Checked 21 October 2026, 23:22 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 0 failed 6 info

Registration

info

.de country-code

Found

TLD
.de (country-code)
ICANN policies apply
no

Checks

  • i
    .de is a country-code TLD (ccTLD)
    Country-code TLD: governed by its local registry under national policy, not by an ICANN contract. Registrar accreditation, dispute resolution and RDAP/WHOIS rules are set by the registry.
    #1
  • ✓ TLD delegated and signed #2
    .de is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .de offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

info

ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net
NS in the zone
ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net
NameserverAddressesNetwork (AS)Glue
ns1.netnames.net156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns2.netnames.net156.154.131.100 2610:a1:1023::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns5.netnames.net156.154.130.100 2610:a1:1022::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
ns6.netnames.net156.154.131.100 2610:a1:1023::100AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.netnames.net, ns2.netnames.net, ns5.netnames.net, ns6.netnames.net.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ No glue needed #8
    All nameservers are outside the zone, so no glue records are needed.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS12008 (VERCARA - Vercara, LLC, US): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .net
    All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.
    #12
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.netnames.net 156.154.130.100NOERROR, 27 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns1.netnames.net 2610:a1:1022::100NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.netnames.net 156.154.131.100NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.netnames.net 2610:a1:1023::100NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns5.netnames.net 156.154.130.100NOERROR, 27 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns5.netnames.net 2610:a1:1022::100NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns6.netnames.net 156.154.131.100NOERROR, 3 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns6.netnames.net 2610:a1:1023::100NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver

Checks

  • ✓ All respond #14
    All 8 nameserver addresses answered.
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.netnames.net: "UltraDNS Nameserver"; ns2.netnames.net: "UltraDNS Nameserver"; ns5.netnames.net: "UltraDNS Nameserver"; ns6.netnames.net: "UltraDNS Nameserver".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2018082247 · primary ns1.netnames.net

Found

Primary (MNAME)
ns1.netnames.net
Contact (RNAME)
hostmaster.cscdns.net
Serial
2018082247
Refresh / retry
86400 s / 1800 s
Expire
3600000 s
Negative TTL
21600 s

Serial per nameserver

NameserverSerial
ns1.netnames.net (156.154.130.100)2018082247
ns1.netnames.net (2610:a1:1022::100)2018082247
ns2.netnames.net (156.154.131.100)2018082247
ns2.netnames.net (2610:a1:1023::100)2018082247
ns5.netnames.net (156.154.130.100)2018082247
ns5.netnames.net (2610:a1:1022::100)2018082247
ns6.netnames.net (156.154.131.100)2018082247
ns6.netnames.net (2610:a1:1023::100)2018082247

Checks

  • ✓ Serial 2018082247 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 30m, expire 1000h, negative TTL 6h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.netnames.net is one of the listed nameservers.
  • ✓ Contact hostmaster@cscdns.net #25
    The SOA RNAME hostmaster.cscdns.net means hostmaster@cscdns.net.
  • ✓ Date-based serial #26
    The serial 2018082247 follows the YYYYMMDDnn convention (2018-08-22).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

26 records at the apex

Found

Read from
156.154.130.100:53
TypeValueTTL
SOAns1.netnames.net. hostmaster.cscdns.net. 2018082247 86400 1800 3600000 21600300
NSns1.netnames.net.21600
NSns2.netnames.net.21600
NSns5.netnames.net.21600
NSns6.netnames.net.21600
A194.9.89.15521600
MX100 mxa-00554f02.gslb.pphosted.com.21600
MX100 mxb-00554f02.gslb.pphosted.com.21600
TXT"MS=ms36623329"21600
TXT"_iuvsr7ma23a9y69h1djxqe5lc8og8pj"21600
TXT"_wzl1c22vm8tz1wj34c8j09hjd3jvorx"21600
TXT"_ywf4riwnfagtdl0isvkidni3s6b87u4"21600
TXT"n1vkx2r86vjrmyngky73mdvt2tkfgq3k"21600
TXT"qry05n47mtjnq71sqs3d78tr93xym8mz"21600
TXT"vb2ln3jcgp1chy38dwgw9729lmjwq29f"21600
TXT"wgs2wx1dmzjf8hjh1k6tyksnrqtk5dzx"21600
TXT"apple-domain-verification=URNuqGhz7X322adQ"21600
TXT"canva-site-verification=TlAXbpR9Wdg3yow9ne_5vg"21600
TXT"openai-domain-verification=dv-QD6hhFAnnxuu0wxxPdZxDCRg"21600
TXT"miro-verification=0e10973fcf8f34fa5d23a025e6e560a70813f525"21600
TXT"facebook-domain-verification=us2w0pytqy4m7ttkpdqzvwh7llbidg"21600
TXT"teamviewer-sso-verification=a4cf3d6abb81411eacabb0a33ccc670b"21600
TXT"google-site-verification=e4U7gMB39ThpeQHoXA_gjck8I9iymNeMyVtAuLj7jnY"21600
TXT"apple-domain-verification=ccsDVtrtdgw18vt-4b5HAHtzWlUMbhKcNc6VQRwcxEA"21600
TXT"cisco-ci-domain-verification=5e76d7adee7af1eaa339e5d11378dcfb08b5611f11e22000829b1e909c5fec2"21600
TXT"v=spf1 include:spf.de.umantis.com include:spf-00554f02.pphosted.com include:sendgrid.net ip4:194.9.88.64/26 ip4:194.9.89.0/24 ip4:149.72.58.252 ip4:3.123.206.219 ip4:3.68.129.51 -all"21600

Checks

  • ✓ TTLs within range #32
    TTLs: A 6h, MX 6h, NS 6h. The NS TTL at the parent is 1d and in the zone 6h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    No CAA records
    Without CAA records any certificate authority may issue certificates for this domain. A CAA record limits issuance to the CAs you use.
    #35