redcoon.de

Checked 22 October 2026, 00:00 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

a1-250.akam.net, a10-67.akam.net, a18-64.akam.net, a4-65.akam.net, a5-66.akam.net, a9-67.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-250.akam.net, a10-67.akam.net, a18-64.akam.net, a4-65.akam.net, a5-66.akam.net, a9-67.akam.net
NS in the zone
a1-250.akam.net, a10-67.akam.net, a18-64.akam.net, a4-65.akam.net, a5-66.akam.net, a9-67.akam.net
NameserverAddressesNetwork (AS)Glue
a1-250.akam.net193.108.91.250 2600:1401:2::faAS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a10-67.akam.net96.7.50.67 2600:1480:d000::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a18-64.akam.net95.101.36.64 2600:1480:4800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a4-65.akam.net72.246.46.65 2600:1480:9000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a5-66.akam.net95.100.168.66 2600:1480:b000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a9-67.akam.net184.85.248.67 2a02:26f0:117::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-250.akam.net, a10-67.akam.net, a18-64.akam.net, a4-65.akam.net, a5-66.akam.net, a9-67.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
a1-250.akam.net 193.108.91.250NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a1-250.akam.net 2600:1401:2::faNOERROR, 5 ms, authoritativenoyes / yesrefused41824.4
a10-67.akam.net 96.7.50.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.32
a10-67.akam.net 2600:1480:d000::43NOERROR, 4 ms, authoritativenoyes / yesrefused48878.31
a18-64.akam.net 95.101.36.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a18-64.akam.net 2600:1480:4800::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.31
a4-65.akam.net 72.246.46.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a4-65.akam.net 2600:1480:9000::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.29
a5-66.akam.net 95.100.168.66NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a5-66.akam.net 2600:1480:b000::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.7
a9-67.akam.net 184.85.248.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.5
a9-67.akam.net 2a02:26f0:117::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9

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: a1-250.akam.net: "41824.7"; a1-250.akam.net: "41824.4"; a10-67.akam.net: "48878.32"; a10-67.akam.net: "48878.31"; a18-64.akam.net: "48878.33"; a18-64.akam.net: "48878.31"; a4-65.akam.net: "48878.32"; a4-65.akam.net: "48878.29"; a5-66.akam.net: "41824.4"; a5-66.akam.net: "41824.7"; a9-67.akam.net: "41824.5"; a9-67.akam.net: "41824.9". 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

info

serial 2018091936 · primary ns1.mediamarktsaturn.com

Found

Primary (MNAME)
ns1.mediamarktsaturn.com
Contact (RNAME)
hostmaster.mediamarktsaturn.com
Serial
2018091936
Refresh / retry
10800 s / 3600 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a1-250.akam.net (193.108.91.250)2018091936
a1-250.akam.net (2600:1401:2::fa)2018091936
a10-67.akam.net (96.7.50.67)2018091936
a10-67.akam.net (2600:1480:d000::43)2018091936
a18-64.akam.net (95.101.36.64)2018091936
a18-64.akam.net (2600:1480:4800::40)2018091936
a4-65.akam.net (72.246.46.65)2018091936
a4-65.akam.net (2600:1480:9000::41)2018091936
a5-66.akam.net (95.100.168.66)2018091936
a5-66.akam.net (2600:1480:b000::42)2018091936
a9-67.akam.net (184.85.248.67)2018091936
a9-67.akam.net (2a02:26f0:117::43)2018091936

Checks

  • ✓ Serial 2018091936 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 28d, negative TTL 15m.
  • i
    Hidden master
    The primary nameserver ns1.mediamarktsaturn.com is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact hostmaster@mediamarktsaturn.com #25
    The SOA RNAME hostmaster.mediamarktsaturn.com means hostmaster@mediamarktsaturn.com.
  • ✓ Date-based serial #26
    The serial 2018091936 follows the YYYYMMDDnn convention (2018-09-19).

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

info

13 records at the apex

Found

Read from
193.108.91.250:53
TypeValueTTL
SOAns1.mediamarktsaturn.com. hostmaster.mediamarktsaturn.com. 2018091936 10800 3600 2419200 90028800
NSa9-67.akam.net.28800
NSa18-64.akam.net.28800
NSa1-250.akam.net.28800
NSa5-66.akam.net.28800
NSa10-67.akam.net.28800
NSa4-65.akam.net.28800
A34.36.160.13728800
MX0 redcoon-de.mail.protection.outlook.com.3600
TXT"v=spf1 include:msh._spf.media-saturn.com include:oraclern._spf.media-saturn.com -all"3600
TXT"knowbe4-site-verification=1f13de584dce0780361fddd7cd0a4dec"3600
TXT"0pnT3AQcJ7wB6RB8gw1tOPzeo9MvMKlPQN/n73CvQgYNnJ2/lZhYKnjFJqfywW86cA68MvcMQROCmTPNkFoiqg=="3600
TXT"atlassian-domain-verification=zjoCTMXFKdP3Akxsob4j84xO3mOE1UP4EaRp/3FaafmKFOPyPsKFatclNX131etH"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 8h, MX 1h, NS 8h. The NS TTL at the parent is 1d and in the zone 8h; resolvers may use either.
  • ✓ 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