hr2.de

Checked 21 October 2026, 22:50 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 warnings 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

ns5.sec-provider.de, ns6.sec-provider.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns5.sec-provider.de, ns6.sec-provider.de
NS in the zone
ns5.sec-provider.de, ns6.sec-provider.de
NameserverAddressesNetwork (AS)Glue
ns5.sec-provider.de194.45.33.133 2001:67c:265c:23f::12AS24861 PALLAS-AS - SITS Deutschland GmbH, DE AS24861 PALLAS-AS - SITS Deutschland GmbH, DE-
ns6.sec-provider.de88.215.197.5 2001:14c0:1001:1::5AS8520 DUNKEL - SITS Deutschland GmbH, DE AS8520 DUNKEL - SITS Deutschland GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns5.sec-provider.de, ns6.sec-provider.de.
    #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 2 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS24861 (PALLAS-AS - SITS Deutschland GmbH, DE): 2 addresses; AS8520 (DUNKEL - SITS Deutschland GmbH, DE): 2 addresses.
  • i
    All nameserver names under .de
    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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns5.sec-provider.de 194.45.33.133NOERROR, 7 ms, authoritativenoyes / norefused-
ns5.sec-provider.de 2001:67c:265c:23f::12NOERROR, 7 ms, authoritativenoyes / norefused-
ns6.sec-provider.de 88.215.197.5NOERROR, 5 ms, authoritativenoyes / norefused-
ns6.sec-provider.de 2001:14c0:1001:1::5NOERROR, 5 ms, authoritativenoyes / norefused-

Checks

  • ✓ All respond #14
    All 4 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✓ TCP supported #19
    All nameservers answer over TCP.
  • !
    No EDNS
    These nameservers don't support EDNS(0), needed for DNSSEC and answers larger than 512 bytes: ns5.sec-provider.de (194.45.33.133), ns5.sec-provider.de (2001:67c:265c:23f::12), ns6.sec-provider.de (88.215.197.5), ns6.sec-provider.de (2001:14c0:1001:1::5).
    #20
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 2026091501 · primary ns6.sec-provider.de

Found

Primary (MNAME)
ns6.sec-provider.de
Contact (RNAME)
hostmaster.sec-provider.de
Serial
2026091501
Refresh / retry
7200 s / 1800 s
Expire
2419200 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns5.sec-provider.de (194.45.33.133)2026091501
ns5.sec-provider.de (2001:67c:265c:23f::12)2026091501
ns6.sec-provider.de (88.215.197.5)2026091501
ns6.sec-provider.de (2001:14c0:1001:1::5)2026091501

Checks

  • ✓ Serial 2026091501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 30m, expire 28d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns6.sec-provider.de is one of the listed nameservers.
  • ✓ Contact hostmaster@sec-provider.de #25
    The SOA RNAME hostmaster.sec-provider.de means hostmaster@sec-provider.de.
  • ✓ Date-based serial #26
    The serial 2026091501 follows the YYYYMMDDnn convention (2026-09-15).

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

9 records at the apex

Found

Read from
194.45.33.133:53
TypeValueTTL
SOAns6.sec-provider.de. hostmaster.sec-provider.de. 2026091501 7200 1800 2419200 360086400
NSns6.sec-provider.de.86400
NSns5.sec-provider.de.86400
A34.111.50.29120
AAAA2600:1901:0:d7c0::600
MX0 hr2-de.mail.protection.outlook.com.3600
TXT"MS=ms37193805"3600
TXT"M0KwaLUOwBex8T+Fvt1KR5RoL9beAYqCSoVDZ6WdrBpZWXybzhXjXAmcQFoyCXDOuYrGxl7lkqjcz6mEyCAfRQ=="86400
TXT"v=spf1 ip4:194.156.7.31 ip4:194.156.7.32 ip4:194.156.7.29 include:spf.sec-provider.de ip4:81.93.164.103 ip4:81.93.173.201 include:ivz.de ip4:194.233.199.240 include:spf.protection.outlook.com ip4:141.2.158.131 -all"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (2m). Low TTLs are useful just before a planned change.
    #32
  • ✓ 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