hochtief.de

Checked 21 October 2026, 22:50 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 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

x.ns.joker.com, y.ns.joker.com, z.ns.joker.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
x.ns.joker.com, y.ns.joker.com, z.ns.joker.com
NS in the zone
x.ns.joker.com, y.ns.joker.com, z.ns.joker.com
NameserverAddressesNetwork (AS)Glue
x.ns.joker.com194.245.103.13AS5517 CSL - CSL Computer Service Langenbach GmbH, DE-
y.ns.joker.com23.88.49.189 2a01:4f8:c0c:165b::1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
z.ns.joker.com192.95.37.184 2607:5300:203:7e6d::2222AS16276 OVH - OVH SAS, FR AS16276 OVH - OVH SAS, FR-

Checks

  • ✓ 3 nameservers #6
    Delegated to x.ns.joker.com, y.ns.joker.com, z.ns.joker.com.
  • ✓ 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 2 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS16276 (OVH - OVH SAS, FR): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses; AS5517 (CSL - CSL Computer Service Langenbach GmbH, DE): 1 address.
  • i
    All nameserver names under .com
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: x.ns.joker.com.
    #13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
x.ns.joker.com 194.245.103.13NOERROR, 8 ms, authoritativenoyes / yesrefusedJNSv2
y.ns.joker.com 23.88.49.189NOERROR, 12 ms, authoritativenoyes / yesrefusedJNSv2
y.ns.joker.com 2a01:4f8:c0c:165b::1NOERROR, 17 ms, authoritativenoyes / yesrefusedJNSv2
z.ns.joker.com 192.95.37.184NOERROR, 95 ms, authoritativenoyes / yesrefusedJNSv2
z.ns.joker.com 2607:5300:203:7e6d::2222NOERROR, 96 ms, authoritativenoyes / yesrefusedJNSv2

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: x.ns.joker.com: "JNSv2"; y.ns.joker.com: "JNSv2"; z.ns.joker.com: "JNSv2".
    #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 2026101214 · primary x.ns.joker.com

Found

Primary (MNAME)
x.ns.joker.com
Contact (RNAME)
hostmaster.joker.com
Serial
2026101214
Refresh / retry
14400 s / 3600 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
x.ns.joker.com (194.245.103.13)2026101214
y.ns.joker.com (23.88.49.189)2026101214
y.ns.joker.com (2a01:4f8:c0c:165b::1)2026101214
z.ns.joker.com (192.95.37.184)2026101214
z.ns.joker.com (2607:5300:203:7e6d::2222)2026101214

Checks

  • ✓ Serial 2026101214 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver x.ns.joker.com is one of the listed nameservers.
  • ✓ Contact hostmaster@joker.com #25
    The SOA RNAME hostmaster.joker.com means hostmaster@joker.com.
  • ✓ Date-based serial #26
    The serial 2026101214 follows the YYYYMMDDnn convention (2026-10-12).

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

pass

16 records at the apex

Found

Read from
194.245.103.13:53
TypeValueTTL
SOAx.ns.joker.com. hostmaster.joker.com. 2026101214 14400 3600 1209600 30086400
NSy.ns.joker.com.86400
NSx.ns.joker.com.86400
NSz.ns.joker.com.86400
A194.245.34.140300
MX0 hochtief-de.mail.protection.outlook.com.14400
TXT"atlassian-domain-verification=TbN7MenUyVeSGTqrtGPC89GlD2XA5fKatT8GZsNe6vNCxaHxrjfvpmynIfBl9I3R"3600
TXT"autodesk-domain-verification=zbxfclmqju-kYoUkuoii"3600
TXT"google-site-verification=bamqepzFkEVQ_Jk-Oamas1GnZ_SEjLQxqsLoNA_h9N8"3600
TXT"flexera-domain-verification-feurxfsefrkwqxbz"3600
TXT"apple-domain-verification=ElVBm8Y36Riqw16k"3600
TXT"eID/Xz17/S8HL4lzc02LnR6KnKRzqzaZTPPap4pXYldNskv5JwykOSRNsa4BJLnvmkYlQUH1zER/Kvyi1Nk7Lw=="3600
TXT"knowbe4-site-verification=31e048ee3866263191cb829f1ee3a099"3600
TXT"v=spf1 include:spf1.hochtief.de include:spf2.hochtief.de -all"3600
CAA0 iodef "mailto:ciso@hochtief.de"14400
CAA0 issue "telesec.de"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 4h, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: telesec.de.