hse.de

Checked 21 October 2026, 22:51 UTC · via 8.8.8.8
!Passed with warnings
22 passed 3 warnings 0 failed 4 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

a1-156.akam.net, a13-65.akam.net, a14-66.akam.net, a18-67.akam.net, a24-64.akam.net, a7-65.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-156.akam.net, a13-65.akam.net, a14-66.akam.net, a18-67.akam.net, a24-64.akam.net, a7-65.akam.net
NS in the zone
a1-156.akam.net, a13-65.akam.net, a14-66.akam.net, a18-67.akam.net, a24-64.akam.net, a7-65.akam.net
NameserverAddressesNetwork (AS)Glue
a1-156.akam.net193.108.91.156 2600:1401:2::9cAS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a13-65.akam.net2.22.230.65 2600:1480:800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a14-66.akam.net184.26.161.66 2600:1480:1800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a18-67.akam.net95.101.36.67 2600:1480:4800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-64.akam.net2.16.130.64 2600:1480:9800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-65.akam.net23.61.199.65 2600:1406:32::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-156.akam.net, a13-65.akam.net, a14-66.akam.net, a18-67.akam.net, a24-64.akam.net, a7-65.akam.net.
  • ✓ 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 6 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses.
  • i
    All nameserver names under .net
    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
a1-156.akam.net 193.108.91.156NOERROR, 4 ms, authoritativenoyes / yesrefused41824.8
a1-156.akam.net 2600:1401:2::9cNOERROR, 8 ms, authoritativenoyes / yesrefused41824.4
a13-65.akam.net 2.22.230.65NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a13-65.akam.net 2600:1480:800::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a14-66.akam.net 184.26.161.66NOERROR, 4 ms, authoritativenoyes / yesrefused48878.29
a14-66.akam.net 2600:1480:1800::42NOERROR, 7 ms, authoritativenoyes / yesrefused48878.26
a18-67.akam.net 95.101.36.67NOERROR, 8 ms, authoritativenoyes / yesrefused48878.32
a18-67.akam.net 2600:1480:4800::43NOERROR, 9 ms, authoritativenoyes / yesrefused48878.31
a24-64.akam.net 2.16.130.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.27
a24-64.akam.net 2600:1480:9800::40NOERROR, 7 ms, authoritativenoyes / yesrefused48878.30
a7-65.akam.net 23.61.199.65NOERROR, 8 ms, authoritativenoyes / yesrefused41824.4
a7-65.akam.net 2600:1406:32::41NOERROR, 8 ms, authoritativenoyes / yesrefused41824.5

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: a1-156.akam.net: "41824.8"; a1-156.akam.net: "41824.4"; a13-65.akam.net: "41824.4"; a13-65.akam.net: "41824.10"; a14-66.akam.net: "48878.29"; a14-66.akam.net: "48878.26"; a18-67.akam.net: "48878.32"; a18-67.akam.net: "48878.31"; a24-64.akam.net: "48878.27"; a24-64.akam.net: "48878.30"; a7-65.akam.net: "41824.4"; a7-65.akam.net: "41824.5". 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 2020071506 · primary a1-156.akam.net

Found

Primary (MNAME)
a1-156.akam.net
Contact (RNAME)
service.hse24.de
Serial
2020071506
Refresh / retry
3600 s / 600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-156.akam.net (193.108.91.156)2020071506
a1-156.akam.net (2600:1401:2::9c)2020071506
a13-65.akam.net (2.22.230.65)2020071506
a13-65.akam.net (2600:1480:800::41)2020071506
a14-66.akam.net (184.26.161.66)2020071506
a14-66.akam.net (2600:1480:1800::42)2020071506
a18-67.akam.net (95.101.36.67)2020071506
a18-67.akam.net (2600:1480:4800::43)2020071506
a24-64.akam.net (2.16.130.64)2020071506
a24-64.akam.net (2600:1480:9800::40)2020071506
a7-65.akam.net (23.61.199.65)2020071506
a7-65.akam.net (2600:1406:32::41)2020071506

Checks

  • ✓ Serial 2020071506 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-156.akam.net is one of the listed nameservers.
  • ✓ Contact service@hse24.de #25
    The SOA RNAME service.hse24.de means service@hse24.de.
  • ✓ Date-based serial #26
    The serial 2020071506 follows the YYYYMMDDnn convention (2020-07-15).

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

21 records at the apex

Found

Read from
193.108.91.156:53
TypeValueTTL
SOAa1-156.akam.net. service.hse24.de. 2020071506 3600 600 604800 300900
NSa14-66.akam.net.900
NSa24-64.akam.net.900
NSa7-65.akam.net.900
NSa18-67.akam.net.900
NSa1-156.akam.net.900
NSa13-65.akam.net.900
A2.16.204.13720
A2.16.204.13920
MX10 hse-de.mail.protection.outlook.com.300
TXT"anthropic-domain-verification-bftbqc=ma70N2b4LOtLzn4tch9BgttrB"300
TXT"MS=ms82348248"300
TXT"_eydov3un31g0k8gtbb7sjfcprrzjv5u"300
TXT"_yvkq3bxucnvludqmro705triezlxpfq"300
TXT"google-site-verification=M5sQgR2EBxCT1g2MEEYqFN7enCj1ZLS4_-bqnlnWkRM"300
TXT"facebook-domain-verification=50oht6k4gsz4ss71uja2fv1prz2q2j"300
TXT"H0O0M27469"300
TXT"google-site-verification=EhCk_ZtgQfIYfShchFGbdbp7UZ9AAqx6CWMZ2k7JGSc"300
TXT"google-site-verification=ZVCTXbv7ZszPaFSbtnvyD-AZ5HAO3DDyye8Vgtqk2YM"300
TXT"v=spf1 a a:mx01.rexx-systems.de ip4:193.28.100.68/32 ip4:185.215.216.0/24 include:inxserver.com " "ip4:185.93.143.0/26 ip4:185.215.217.0/24 ip4:195.10.208.0/26 ip6:2001:67c:2050:102:465::/80 include:spf.protection.outlook.com include:_spf.general.transactional-mail-a.com ~all"300
TXT"google-site-verification=2KY_VabCnQYs7gsswtLoPVMs0fryMBeY7WNCJz0BVWs"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 15m; resolvers may use either.
    #32
  • ✓ 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