douglas.de

Checked 21 October 2026, 22:15 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 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, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns1.netnames.net 2610:a1:1022::100NOERROR, 14 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.netnames.net 156.154.131.100NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns2.netnames.net 2610:a1:1023::100NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns5.netnames.net 156.154.130.100NOERROR, 31 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns5.netnames.net 2610:a1:1022::100NOERROR, 13 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
ns6.netnames.net 156.154.131.100NOERROR, 4 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

warn

serial 2026110928 · primary ns1.netnames.net

Found

Primary (MNAME)
ns1.netnames.net
Contact (RNAME)
hostmaster.dhag.net
Serial
2026110928
Refresh / retry
10000 s / 1800 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.netnames.net (156.154.130.100)2026110928
ns1.netnames.net (2610:a1:1022::100)2026110928
ns2.netnames.net (156.154.131.100)2026110928
ns2.netnames.net (2610:a1:1023::100)2026110928
ns5.netnames.net (156.154.130.100)2026110928
ns5.netnames.net (2610:a1:1022::100)2026110928
ns6.netnames.net (156.154.131.100)2026110928
ns6.netnames.net (2610:a1:1023::100)2026110928

Checks

  • ✓ Serial 2026110928 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 30m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.netnames.net is one of the listed nameservers.
  • ✓ Contact hostmaster@dhag.net #25
    The SOA RNAME hostmaster.dhag.net means hostmaster@dhag.net.
  • !
    Serial date in the future
    The serial 2026110928 looks like a date (YYYYMMDDnn) in the future (2026-11-09). It can only grow, so a wrong date can't be undone without a serial wrap-around.
    #26

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

27 records at the apex

Found

Read from
156.154.130.100:53
TypeValueTTL
SOAns1.netnames.net. hostmaster.dhag.net. 2026110928 10000 1800 1209600 360040000
NSns1.netnames.net.40000
NSns2.netnames.net.40000
NSns5.netnames.net.40000
NSns6.netnames.net.40000
A34.91.213.1440000
MX0 douglas-de.mail.protection.outlook.com.3600
TXT"MS=ms82471376"40000
TXT"rm_verify=3b082c4bfc"40000
TXT"rm_verify=77a944227c"40000
TXT"_myapsqsezdt99rfpalr8oo9xowfsb69"40000
TXT"b5nl6lsdkm5pdg60w5842lhv6bn6rkcc"40000
TXT"asv=99e1df4674e6dbc09c92a01bb1ac2e86"40000
TXT"swisssign-check=L8Wf771CQP7U8g3Hiu-720Oa5Jw"40000
TXT"adobe-sign-verification=af5e7167540c1266fdd6a2dd8971bce0"40000
TXT"docker-verification=e40e1d02-d5d5-41b9-bd68-e37b0a96cfc7"40000
TXT"mongodb-site-verification=K3aTuTabJRQbA3wGzqZblWwne6EouOAg"40000
TXT"facebook-domain-verification=rhd2qq0qdp8o70yxz7i78ew6nhf4ub"40000
TXT"pinterest-site-verification=1febb84d8d8e98339022def347620826"40000
TXT"teamviewer-sso-verification=9d5b31de5b454ba088487b5568a04b3f"40000
TXT"google-site-verification=CpbNrq5n2a90KExg2WeDW4wOrZKHndrFvw1ShTO4big"40000
TXT"google-site-verification=IcCl_5PeHnfa0zFb9Kdt49bqvXgoZ8IgsWfyLCUDl-I"40000
TXT"google-site-verification=mTch38QTiUAZ9Xh2N6kxsEkeetyLdhEgq2YbKFLhdrU"40000
TXT"apple-domain-verification=eoRvJqiX3AgG1Hpd2HkefOmMZDA2_lKYJbG3jTQWa1o"40000
TXT"atlassian-domain-verification=W0veRyD740mjMCEcM8NPpxuVxueL9Cka5WeoQoJTFzCqhd96Gg9xe55hOeyfE6fC"40000
TXT"successfactors-site-verification=M2UzNWQxOTA0ZTkxY2VmZWMxMDZkNjk1MTYzMDhiZTMwY2U0MmRkMDgzYWYwNGViMjU3OWJlMzU0NjI5ODA0ZA=="40000
TXT"v=spf1 a:mx01.dglecom.net a:mx02.dglecom.net ip4:195.191.69.24/30 ip4:81.173.113.3/32 a:mailall.oediv-services.de include:spf.servicemail24.de include:spf.protection.outlook.com" " include:sendgrid.net include:spf.recruitmail.com include:_spf-dc55.sapsf.eu include:em6735.mirakl.douglas.de -all"40000

Checks

  • ✓ TTLs within range #32
    TTLs: A 11h6m40s, MX 1h, NS 11h6m40s. The NS TTL at the parent is 1d and in the zone 11h6m40s; 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