city-map.de

Checked 21 October 2026, 22:07 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

a.city-map.de, b.city-map.de, c.city-map.com, d.city-map.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a.city-map.de, b.city-map.de, c.city-map.com, d.city-map.net
NS in the zone
a.city-map.de, b.city-map.de, c.city-map.com, d.city-map.net
NameserverAddressesNetwork (AS)Glue
a.city-map.de217.160.80.161AS8560 IONOS-AS - IONOS SE, DE217.160.80.161
b.city-map.de217.160.81.161AS8560 IONOS-AS - IONOS SE, DE217.160.81.161
c.city-map.com185.132.35.161AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-
d.city-map.net185.132.34.161 2607:f1c0:fe:53:185:132:34:161AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB AS15418 IONOS-ANYCAST - Fasthosts Internet Limited, GB-

Checks

  • ✓ 4 nameservers #6
    Delegated to a.city-map.de, b.city-map.de, c.city-map.com, d.city-map.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: a.city-map.de, b.city-map.de.
  • ✓ 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 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15418 (IONOS-ANYCAST - Fasthosts Internet Limited, GB): 3 addresses; AS8560 (IONOS-AS - IONOS SE, DE): 2 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .com, .de, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: a.city-map.de, b.city-map.de, c.city-map.com.
    #13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a.city-map.de 217.160.80.161NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
b.city-map.de 217.160.81.161NOERROR, 9 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
c.city-map.com 185.132.35.161NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
d.city-map.net 185.132.34.161NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
d.city-map.net 2607:f1c0:fe:53:185:132:34:161NOERROR, 3 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

Checks

  • ✓ All respond #14
    All 5 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: a.city-map.de: "Served by PowerDNS - https://www.powerdns.com/"; b.city-map.de: "Served by PowerDNS - https://www.powerdns.com/"; c.city-map.com: "Served by PowerDNS - https://www.powerdns.com/"; d.city-map.net: "Served by PowerDNS - https://www.powerdns.com/".
    #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 2026011362 · primary a.city-map.de

Found

Primary (MNAME)
a.city-map.de
Contact (RNAME)
hostmaster.city-map.de
Serial
2026011362
Refresh / retry
43200 s / 7200 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
a.city-map.de (217.160.80.161)2026011362
b.city-map.de (217.160.81.161)2026011362
c.city-map.com (185.132.35.161)2026011362
d.city-map.net (185.132.34.161)2026011362
d.city-map.net (2607:f1c0:fe:53:185:132:34:161)2026011362

Checks

  • ✓ Serial 2026011362 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a.city-map.de is one of the listed nameservers.
  • ✓ Contact hostmaster@city-map.de #25
    The SOA RNAME hostmaster.city-map.de means hostmaster@city-map.de.
  • ✓ Date-based serial #26
    The serial 2026011362 follows the YYYYMMDDnn convention (2026-01-13).

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
217.160.80.161:53
TypeValueTTL
SOAa.city-map.de. hostmaster.city-map.de. 2026011362 43200 7200 1209600 8640086400
NSa.city-map.de.86400
NSc.city-map.com.86400
NSb.city-map.de.86400
NSd.city-map.net.86400
A85.236.61.247300
MX20 mx02.city-map.email.300
MX10 mx01.city-map.email.300
TXT"brevo-code:fdf85d0b97818cbaf8416e68c9b236cf"300
TXT"<22.03.2023>"300
TXT"MS=464E0F553560E696DB9113780EBC761DEF98D828"300
TXT"v=spf1 include:spf.city-map.email include:mailgun.org include:_spf-e.cegedim.fr include:_spf-i.cegedim.fr -all"300
TXT"202002071312521ym238mlomkbp88psd0ll84witsinllaelqwxb3fen34ks54q6"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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