munich-airport.de

Checked 21 October 2026, 23:30 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 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

ns.space.net, ns1.munich-airport.de, ns2.munich-airport.de, ns3.dns.space.net, ns4.dns.space.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns.space.net, ns1.munich-airport.de, ns2.munich-airport.de, ns3.dns.space.net, ns4.dns.space.net
NS in the zone
ns.space.net, ns1.munich-airport.de, ns2.munich-airport.de, ns3.dns.space.net, ns4.dns.space.net
NameserverAddressesNetwork (AS)Glue
ns.space.net195.30.0.10 2001:608:0:a::1AS5539 SPACENET - SpaceNet AG, DE AS5539 SPACENET - SpaceNet AG, DE-
ns1.munich-airport.de134.247.251.120AS34127 MUNICH-AIRPORT-AS - Flughafen Muenchen GmbH, DE134.247.251.120
ns2.munich-airport.de134.247.251.121AS34127 MUNICH-AIRPORT-AS - Flughafen Muenchen GmbH, DE134.247.251.121
ns3.dns.space.net193.149.44.49 2001:608:0:f0f::fAS5539 SPACENET - SpaceNet AG, DE AS5539 SPACENET - SpaceNet AG, DE-
ns4.dns.space.net194.97.129.1 2001:608:0:b::1AS5539 SPACENET - SpaceNet AG, DE AS5539 SPACENET - SpaceNet AG, DE-

Checks

  • ✓ 5 nameservers #6
    Delegated to ns.space.net, ns1.munich-airport.de, ns2.munich-airport.de, ns3.dns.space.net, ns4.dns.space.net.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.munich-airport.de, ns2.munich-airport.de.
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:608::/48, while the other address family is spread over several networks.
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS34127 (MUNICH-AIRPORT-AS - Flughafen Muenchen GmbH, DE): 2 addresses; AS5539 (SPACENET - SpaceNet AG, DE): 6 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns1.munich-airport.de, ns2.munich-airport.de.
    #13

Nameservers

warn

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.space.net 195.30.0.10NOERROR, 11 ms, authoritativenoyes / yesrefusedKnot DNS 3.6.0
ns.space.net 2001:608:0:a::1NOERROR, 12 ms, authoritativenoyes / yesrefusedKnot DNS 3.6.0
ns1.munich-airport.de 134.247.251.120NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns2.munich-airport.de 134.247.251.121NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns3.dns.space.net 193.149.44.49NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns3.dns.space.net 2001:608:0:f0f::fNOERROR, 3 ms, authoritativenoyes / yesrefused-
ns4.dns.space.net 194.97.129.1NOERROR, 12 ms, authoritativenoyes / yesrefused9.20.24
ns4.dns.space.net 2001:608:0:b::1NOERROR, 11 ms, authoritativenoyes / yesrefused9.20.24

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns.space.net: "Knot DNS 3.6.0"; ns4.dns.space.net: "9.20.24". 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 2019013626 · primary ns1.munich-airport.de

Found

Primary (MNAME)
ns1.munich-airport.de
Contact (RNAME)
hostmaster.munich-airport.de
Serial
2019013626
Refresh / retry
10800 s / 3600 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns.space.net (195.30.0.10)2019013626
ns.space.net (2001:608:0:a::1)2019013626
ns1.munich-airport.de (134.247.251.120)2019013626
ns2.munich-airport.de (134.247.251.121)2019013626
ns3.dns.space.net (193.149.44.49)2019013626
ns3.dns.space.net (2001:608:0:f0f::f)2019013626
ns4.dns.space.net (194.97.129.1)2019013626
ns4.dns.space.net (2001:608:0:b::1)2019013626

Checks

  • ✓ Serial 2019013626 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 28d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.munich-airport.de is one of the listed nameservers.
  • ✓ Contact hostmaster@munich-airport.de #25
    The SOA RNAME hostmaster.munich-airport.de means hostmaster@munich-airport.de.
  • ✓ Timestamp serial #26
    The serial 2019013626 is a Unix timestamp (2033-12-24 05:07 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

info

16 records at the apex

Found

Read from
195.30.0.10:53
TypeValueTTL
SOAns1.munich-airport.de. hostmaster.munich-airport.de. 2019013626 10800 3600 2419200 9003600
NSns.space.net.3600
NSns1.munich-airport.de.3600
NSns2.munich-airport.de.3600
NSns3.dns.space.net.3600
NSns4.dns.space.net.3600
A134.247.111.113600
MX10 mailgate.munich-airport.de.3600
TXT"MS=D27223C8978C08129B8A89AB2A5BE5E90082179E"3600
TXT"docusign=d8b1a1ca-3169-4111-b4cb-1d1d4201a5cf"3600
TXT"google-site-verification=AP0tGNrVjUJrL1pBr3PnMayfwYvZ4RTnLp1yx0VxZ0g"3600
TXT"mindmanager-verification=3bb7a172f510f855125f88257ed8b0454474a5f5844d25641d1224bda1b0cfb7"3600
TXT"adobe-idp-site-verification=253453b78e029f663fecaed588e431701752cbc98705fb20d0891cb253f2c82c"3600
TXT"adobe-idp-site-verification=e055672c004a7af42ae81620c031c87abcda2f5958c9d1de8ab1c2dee8c8de9a"3600
TXT"cisco-ci-domain-verification=709c03a897427bc5d7eccbff3369e9d8a6104aacbe3653a92645fdb40d858412"3600
TXT"v=spf1 ip4:134.247.251.32/28 ip4:134.247.6.208/28 ip4:134.247.0.46 ip4:134.247.29.170/31 ip4:134.247.199.214 ip4:134.247.199.215 -all"3600

Checks

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