hays.de

Checked 21 October 2026, 22:42 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

mckenzie.ns.cloudflare.com, ruben.ns.cloudflare.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
mckenzie.ns.cloudflare.com, ruben.ns.cloudflare.com
NS in the zone
mckenzie.ns.cloudflare.com, ruben.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
mckenzie.ns.cloudflare.com172.64.34.253 162.159.38.253 108.162.194.253 2803:f800:50::6ca2:c2fd 2606:4700:50::a29f:26fd 2a06:98c1:50::ac40:22fdAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
ruben.ns.cloudflare.com108.162.195.71 172.64.35.71 162.159.44.71 2606:4700:58::a29f:2c47 2803:f800:50::6ca2:c347 2a06:98c1:50::ac40:2347AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: mckenzie.ns.cloudflare.com, ruben.ns.cloudflare.com.
    #6
  • ✓ 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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
mckenzie.ns.cloudflare.com 172.64.34.253NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
mckenzie.ns.cloudflare.com 162.159.38.253NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
mckenzie.ns.cloudflare.com 108.162.194.253NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
mckenzie.ns.cloudflare.com 2803:f800:50::6ca2:c2fdNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
mckenzie.ns.cloudflare.com 2606:4700:50::a29f:26fdNOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
mckenzie.ns.cloudflare.com 2a06:98c1:50::ac40:22fdNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
ruben.ns.cloudflare.com 108.162.195.71NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ruben.ns.cloudflare.com 172.64.35.71NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
ruben.ns.cloudflare.com 162.159.44.71NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
ruben.ns.cloudflare.com 2606:4700:58::a29f:2c47NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ruben.ns.cloudflare.com 2803:f800:50::6ca2:c347NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
ruben.ns.cloudflare.com 2a06:98c1:50::ac40:2347NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 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: mckenzie.ns.cloudflare.com: "2026.10.2"; ruben.ns.cloudflare.com: "2026.10.2". 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 2418076935 · primary mckenzie.ns.cloudflare.com

Found

Primary (MNAME)
mckenzie.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2418076935
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
mckenzie.ns.cloudflare.com (172.64.34.253)2418076935
mckenzie.ns.cloudflare.com (162.159.38.253)2418076935
mckenzie.ns.cloudflare.com (108.162.194.253)2418076935
mckenzie.ns.cloudflare.com (2803:f800:50::6ca2:c2fd)2418076935
mckenzie.ns.cloudflare.com (2606:4700:50::a29f:26fd)2418076935
mckenzie.ns.cloudflare.com (2a06:98c1:50::ac40:22fd)2418076935
ruben.ns.cloudflare.com (108.162.195.71)2418076935
ruben.ns.cloudflare.com (172.64.35.71)2418076935
ruben.ns.cloudflare.com (162.159.44.71)2418076935
ruben.ns.cloudflare.com (2606:4700:58::a29f:2c47)2418076935
ruben.ns.cloudflare.com (2803:f800:50::6ca2:c347)2418076935
ruben.ns.cloudflare.com (2a06:98c1:50::ac40:2347)2418076935

Checks

  • ✓ Serial 2418076935 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver mckenzie.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2418076935 is a Unix timestamp (2046-08-17 00:02 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

pass

45 records at the apex

Found

Read from
172.64.34.253:53
TypeValueTTL
SOAmckenzie.ns.cloudflare.com. dns.cloudflare.com. 2418076935 10000 2400 604800 18001800
NSmckenzie.ns.cloudflare.com.86400
NSruben.ns.cloudflare.com.86400
A104.18.2.45300
A104.18.3.45300
AAAA2606:4700::6812:22d300
AAAA2606:4700::6812:32d300
MX10 eu-smtp-inbound-1.mimecast.com.3600
MX10 eu-smtp-inbound-2.mimecast.com.3600
MX30 mail2.hays.de.3600
TXT"Dynatrace-site-verification=d267dbeb-e4f6-48c2-8fb0-6cd1486fa21e__sk4h2p6hbubenl03cmtikk01qp"300
TXT"MS=ms12939070"300
TXT"MS=ms54060270"300
TXT"QuoVadis=471eb05f-ac28-4017-9c19-2c189530b3b9"300
TXT"QuoVadis=a64f5470-11c1-4d2c-aedc-07f5fa7b2e9b"300
TXT"QuoVadis=f5da218f-eadc-4823-9511-5cf84d3535f4"300
TXT"apple-domain-verification=UZHBkqsS7lblGAz7"300
TXT"atlassian-domain-verification=v00gNasaxRkXGqg0C2eELVt//Q6eWf7Wbs2dSdWiQ0yhr58UOMIYtHrxYK6mn9NK"300
TXT"cisco-ci-domain-verification=5c1ceb04e3f693f04ffb9a0d0da8f2582f83a363734993f672de818a887c905d"300
TXT"docusign=19bf81fb-2fc0-4b10-a52d-08241f355e46"300
TXT"docusign=de0d3812-7a34-46ed-8f21-fd5028da09a1"300
TXT"globalsign-domain-verification=13AC4A7707E624138A93B2B50D585019"300
TXT"globalsign-domain-verification=49575189c6e83975c901b6953cf1cfd9"300
TXT"globalsign-domain-verification=4a69251a0c7cae4586efa590ed9357a0"300
TXT"globalsign-domain-verification=D1B0AF46753566147CE50062A641B067"300
TXT"globalsign-domain-verification=xVn9oHn0nQmtn8NabmrHe4P1WTwS4MVtWPV-FcxU6c"300
TXT"google-site-verification=7wYM5idRB29ZI1DvkpXxPfaWY3JoDXV_D8hDqYiqvKU"300
TXT"google-site-verification=BnfXGmkJ4RjnQxwslQn2p4NLQQn3Y6wcIi6MGfikakc"300
TXT"google-site-verification=U7On4bm5tJsUtJg1qToM2j0Ll3xXTAac9AjurI9UpC8"300
TXT"google-site-verification=jf1D7VmyLyQ2lH8JskQ1Fy11aIkXNuXEPGBbfVT4etc"300
TXT"onetrust-domain-verification=a594454b642c473a80e25d1982ee068b"300
TXT"v=spf1 ip4:213.95.36.154 ip4:213.206.190.124 ip4:77.72.216.45 ip4:77.72.216.44 ip4:217.151.148.154 ip4:82.150.225.79 ip4:171.17.133.140 ip4:171.17.133.100 ip4:82.150.230.4 ip4:82.150.230.84/31 include:eu._netblocks.mimecast.com include:mailgun.org include" ":cust-spf.exacttarget.com include:sendgrid.net include:spf.protection.outlook.com -all"300
CAA0 issue "comodoca.com"300
CAA0 issue "digicert.com; cansignhttpexchanges=yes"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issue "sectigo.com"300
CAA0 issue "ssl.com"300
CAA0 issue "telesec.de"300
CAA0 issuewild "comodoca.com"300
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"300
CAA0 issuewild "letsencrypt.org"300
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "sectigo.com"300
CAA0 issuewild "ssl.com"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 1h, 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: comodoca.com, digicert.com, letsencrypt.org, pki.goog, sectigo.com, ssl.com, telesec.de.