hse24.de

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

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::9cAS21342 AKAMAI-ASN2 - 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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 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 .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 / yesrefused41824.7
a1-156.akam.net 2600:1401:2::9cNOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a13-65.akam.net 2.22.230.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a13-65.akam.net 2600:1480:800::41NOERROR, 3 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, 3 ms, authoritativenoyes / yesrefused48878.26
a18-67.akam.net 95.101.36.67NOERROR, 4 ms, authoritativenoyes / yesrefused48878.29
a18-67.akam.net 2600:1480:4800::43NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a24-64.akam.net 2.16.130.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.30
a24-64.akam.net 2600:1480:9800::40NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a7-65.akam.net 23.61.199.65NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
a7-65.akam.net 2600:1406:32::41NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11

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: "41824.7"; a1-156.akam.net: "41824.6"; a13-65.akam.net: "41824.7"; a13-65.akam.net: "41824.10"; a14-66.akam.net: "48878.29"; a14-66.akam.net: "48878.26"; a18-67.akam.net: "48878.29"; a24-64.akam.net: "48878.30"; a24-64.akam.net: "48878.31"; a7-65.akam.net: "41824.11". 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 2019022147 · primary a1-156.akam.net

Found

Primary (MNAME)
a1-156.akam.net
Contact (RNAME)
service.hse24.de
Serial
2019022147
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a1-156.akam.net (193.108.91.156)2019022147
a1-156.akam.net (2600:1401:2::9c)2019022147
a13-65.akam.net (2.22.230.65)2019022147
a13-65.akam.net (2600:1480:800::41)2019022147
a14-66.akam.net (184.26.161.66)2019022147
a14-66.akam.net (2600:1480:1800::42)2019022147
a18-67.akam.net (95.101.36.67)2019022147
a18-67.akam.net (2600:1480:4800::43)2019022147
a24-64.akam.net (2.16.130.64)2019022147
a24-64.akam.net (2600:1480:9800::40)2019022147
a7-65.akam.net (23.61.199.65)2019022147
a7-65.akam.net (2600:1406:32::41)2019022147

Checks

  • ✓ Serial 2019022147 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 15m.
  • ✓ 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 2019022147 follows the YYYYMMDDnn convention (2019-02-21).

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

29 records at the apex

Found

Read from
193.108.91.156:53
TypeValueTTL
SOAa1-156.akam.net. service.hse24.de. 2019022147 10800 3600 604800 900300
NSa13-65.akam.net.300
NSa1-156.akam.net.300
NSa14-66.akam.net.300
NSa7-65.akam.net.300
NSa18-67.akam.net.300
NSa24-64.akam.net.300
A23.53.42.12820
A23.53.42.21020
MX10 hse24-de.mail.protection.outlook.com.300
TXT"7USNgAjqqMXJT4iL+2yObeg+yqdKhXHHeEhx1pJqlayFeL5FjxaoJrma9tJ7HHeR1QxRnuPyxUGz93YiBIzUyA=="300
TXT"fpT4NLsaXyTkzcsPah68fVpEbiXx4+0Sd+LPE3gy/Yw="300
TXT"_g3lyfex9np7jei7t2e1wvprhqjb6qvh"300
TXT"apple-domain-verification=uVxYumYoo6z9anY7"300
TXT"PcncUUQ7S7wbyIJ1k6ScPYwfhvToRXiHpW6zceOCSdo="300
TXT"MS=ms78511765"300
TXT"docusign=cfccd163-1dd4-4854-a502-0b8abc3af876"300
TXT"K43AIb/d2TXQCiDJYC28hKKpWdJZ5CJbnfWcedZ32A8="300
TXT"globalsign-domain-verification=GSQcIlbWzm1-Um4ERTmrFt9Bx6zWbL5E_Ezckbz187"300
TXT"v=spf1 a a:mx01.rexx-systems.de ip4:193.28.100.68/32 ip4:185.215.216.0/24" " ip4:193.28.97.84/32 ip4:194.147.133.36/32 ip4:188.95.0.38/32 ip4:188.95.7.6/32 ip4:195.10.208.0/26 ip6:2001:67c:2050:102:465::/80 include:inxserver.com include:spf.protection.outlook.com include:_spf.general.transactional-mail-a.com ~all"300
TXT"google-site-verification=DfOGk-EzDF9hbfNn1e60kL-WzA-3r2pZkUztFB0fypA"300
TXT"globalsign-domain-verification=i9_8z5xyGLukWDr_dF6DR5F7MlQu0HzaQuNLrqpAvG"300
TXT"_3hurtg89rxbqgqnc7bsaljmbonvtdto"300
TXT"_3ce8n5iyeu6l2ip5i976bm50fhpc2kq"300
TXT"uk/tgaOlLO7ypPDaJ4Z33b6x1sPkoX8eBh2N00QFSt4="300
TXT"google-site-verification=IaxZIXcWAZFA7MJdGyIyMOsecodHxa65imyIEhDpzuw"300
TXT"_globalsign-domain-verification=ii3-t7MDTQS-At0gtqHJn900R_ecPuZGUFF8l3rSQv"300
TXT"CbJof0qx3xHOYnMa55VaJN6q5iyoR6J7URsfpi7wU38="300
TXT"atlassian-domain-verification=PK8LL7xITjnZVDgJgZJ5wxTM+2e2sV2rqLQ/gdUclCSHyd8B+EwCc2xHpaJDqUeq"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 5m; 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