wittich.de

Checked 22 October 2026, 01:01 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 5 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.bw-networx.net, ns2.bw-networx.net, ns3.bw-networx.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.bw-networx.net, ns2.bw-networx.net, ns3.bw-networx.net
NS in the zone
ns1.bw-networx.net, ns2.bw-networx.net, ns3.bw-networx.net
NameserverAddressesNetwork (AS)Glue
ns1.bw-networx.net78.47.222.197 2a01:4f8:1c17:802e::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
ns2.bw-networx.net94.130.189.146 2a01:4f8:1c0c:804c::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
ns3.bw-networx.net5.9.167.141 2a01:4f8:162:5065::1:4AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.bw-networx.net, ns2.bw-networx.net, ns3.bw-networx.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 3 IPv4 /24s and 3 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 6 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

warn

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.bw-networx.net 78.47.222.197NOERROR, 3 ms, authoritativenoyes / yesrefused9.18.49-1~deb12u2-Debian
ns1.bw-networx.net 2a01:4f8:1c17:802e::1NOERROR, 4 ms, authoritativenoyes / yesrefused9.18.49-1~deb12u2-Debian
ns2.bw-networx.net 94.130.189.146NOERROR, 2 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.3-Ubuntu
ns2.bw-networx.net 2a01:4f8:1c0c:804c::1NOERROR, 2 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.3-Ubuntu
ns3.bw-networx.net 5.9.167.141NOERROR, 3 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.8-Ubuntu
ns3.bw-networx.net 2a01:4f8:162:5065::1:4NOERROR, 3 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.24.04.8-Ubuntu

Checks

  • ✓ All respond #14
    All 6 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: ns1.bw-networx.net: "9.18.49-1~deb12u2-Debian"; ns2.bw-networx.net: "9.18.39-0ubuntu0.24.04.3-Ubuntu"; ns3.bw-networx.net: "9.18.39-0ubuntu0.24.04.8-Ubuntu". 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 2016023836 · primary ns1.bw-networx.net

Found

Primary (MNAME)
ns1.bw-networx.net
Contact (RNAME)
hostmaster.bw-networx.net
Serial
2016023836
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns1.bw-networx.net (78.47.222.197)2016023836
ns1.bw-networx.net (2a01:4f8:1c17:802e::1)2016023836
ns2.bw-networx.net (94.130.189.146)2016023836
ns2.bw-networx.net (2a01:4f8:1c0c:804c::1)2016023836
ns3.bw-networx.net (5.9.167.141)2016023836
ns3.bw-networx.net (2a01:4f8:162:5065::1:4)2016023836

Checks

  • ✓ Serial 2016023836 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.bw-networx.net is one of the listed nameservers.
  • ✓ Contact hostmaster@bw-networx.net #25
    The SOA RNAME hostmaster.bw-networx.net means hostmaster@bw-networx.net.
  • ✓ Timestamp serial #26
    The serial 2016023836 is a Unix timestamp (2033-11-19 14:37 UTC).

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

warn

16 records at the apex

Found

Read from
78.47.222.197:53
TypeValueTTL
SOAns1.bw-networx.net. hostmaster.bw-networx.net. 2016023836 28800 7200 604800 600600
NSns3.bw-networx.net.60
NSns1.bw-networx.net.60
NSns2.bw-networx.net.60
A176.94.150.123600
MX99 vodafone-gw.wittich.de.60
MX20 backupmx.wittich.de.60
MX10 mail-in.wittich.de.60
TXT"bde706598fe1be191e4060f0c09406c6f9a43bfe94b92f7c193fe8414189c41"60
TXT"af2a3d25ff2ddbf1ddc1ee74ac6ebc0bc70ff3305114ad806a4985f7459d141"60
TXT"adobe-idp-site-verification=27b7bdc8f30473b2906ce50be2e5c7a93469cedd5d8a26647264ac9eb8b2eb1d"60
TXT"apple-domain-verification=uMQKBikp4XvWQ5jx"60
TXT"4334ec191058846a6f2f18424ec3b6ffa947bfb6a58f593598c40be16fcf2a1"60
TXT"google-site-verification=d8RBRGdC9UEO0hyYK8jM9GOnCmD6XRjCxr9MBO1Yeqg"60
TXT"v=spf1 ip4:176.94.150.0/26 a:mail-out.wittich.de a:proteus.wittich.de ~all"60
TXT"sophos-domain-verification=3b89b51c513e38c8c8ee9fa3da82af031da50dfc9bf260fc728b763d19be6906"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: MX (1m), NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1m; resolvers may use either.
    #32
  • ✓ 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