paderborn.de

Checked 21 October 2026, 23:42 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 4 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

warn

ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net, bodo.gkdpb.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net, bodo.gkdpb.de
NS in the zone
ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net, bodo.gkdpb.de
NameserverAddressesNetwork (AS)Glue
ans1.ewetel.net213.170.187.14AS9145 EWETEL - EWE TEL GmbH, DE-
ans2.ewetel.de212.6.121.254AS9145 EWETEL - EWE TEL GmbH, DE212.6.121.254
ans3.ewetel.net85.16.255.14AS9145 EWETEL - EWE TEL GmbH, DE-
bodo.gkdpb.de80.66.4.31AS9145 EWETEL - EWE TEL GmbH, DE80.66.4.31

Checks

  • ✓ 4 nameservers #6
    Delegated to ans1.ewetel.net, ans2.ewetel.de, ans3.ewetel.net, bodo.gkdpb.de.
  • ✓ 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 4 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS9145 (EWETEL - EWE TEL GmbH, DE): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ans1.ewetel.net 213.170.187.14NOERROR, 11 ms, authoritativenoyes / yesrefused-
ans2.ewetel.de 212.6.121.254NOERROR, 11 ms, authoritativenoyes / yesrefused-
ans3.ewetel.net 85.16.255.14NOERROR, 10 ms, authoritativenoyes / yesrefused-
bodo.gkdpb.de 80.66.4.31NOERROR, 14 ms, authoritativenoyes / yesrefused9.20.26

Checks

  • ✓ All respond #14
    All 4 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: bodo.gkdpb.de: "9.20.26". Hide or replace the version string.
    #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 2026101501 · primary bodo.gkdpb.de

Found

Primary (MNAME)
bodo.gkdpb.de
Contact (RNAME)
webmaster.gkdpb.de
Serial
2026101501
Refresh / retry
86400 s / 10800 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ans1.ewetel.net (213.170.187.14)2026101501
ans2.ewetel.de (212.6.121.254)2026101501
ans3.ewetel.net (85.16.255.14)2026101501
bodo.gkdpb.de (80.66.4.31)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 3h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver bodo.gkdpb.de is one of the listed nameservers.
  • ✓ Contact webmaster@gkdpb.de #25
    The SOA RNAME webmaster.gkdpb.de means webmaster@gkdpb.de.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

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

13 records at the apex

Found

Read from
213.170.187.14:53
TypeValueTTL
SOAbodo.gkdpb.de. webmaster.gkdpb.de. 2026101501 86400 10800 604800 8640010800
NSans2.ewetel.de.10800
NSbodo.gkdpb.de.10800
NSans1.ewetel.net.10800
NSans3.ewetel.net.10800
A80.66.4.7110800
MX5 mx.krz.de.10800
TXT"apple-domain-verification=47znaNOmhq3z8sOP"10800
TXT"apple-domain-verification=gcJ7A5282oAqSFgE"10800
TXT"apple-domain-verification=uU5aUd7VlwhjLsMU"10800
TXT"v=spf1 mx include:spf.owl-it.de a:newsrelay.stage-x.de include:ekom21.de a:cloud8-vm386.de-nserver.de include:_se_net.axiell.com -all"10800
TXT"MS=ms37806062"10800
TXT"ZOOM_verify_V0y3aa2RLg960OM0r3W3sd"10800

Checks

  • ✓ TTLs within range #32
    TTLs: A 3h, MX 3h, NS 3h. The NS TTL at the parent is 1d and in the zone 3h; 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