ullapopken.de

Checked 22 October 2026, 00:50 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

a1-8.akam.net, a11-67.akam.net, a2-64.akam.net, a22-65.akam.net, a24-66.akam.net, a9-67.akam.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
a1-8.akam.net, a11-67.akam.net, a2-64.akam.net, a22-65.akam.net, a24-66.akam.net, a9-67.akam.net
NS in the zone
a1-8.akam.net, a11-67.akam.net, a2-64.akam.net, a22-65.akam.net, a24-66.akam.net, a9-67.akam.net
NameserverAddressesNetwork (AS)Glue
a1-8.akam.net193.108.91.8 2600:1401:2::8AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-67.akam.net84.53.139.67 2600:1480:1::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a2-64.akam.net95.100.174.64 2600:1480:7000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-65.akam.net23.211.61.65 2600:1480:7800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-66.akam.net2.16.130.66 2600:1480:9800::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 a1-8.akam.net, a11-67.akam.net, a2-64.akam.net, a22-65.akam.net, a24-66.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.
  • 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
a1-8.akam.net 193.108.91.8NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a1-8.akam.net 2600:1401:2::8NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a11-67.akam.net 84.53.139.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a11-67.akam.net 2600:1480:1::43NOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a2-64.akam.net 95.100.174.64NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a2-64.akam.net 2600:1480:7000::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.31
a22-65.akam.net 23.211.61.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a22-65.akam.net 2600:1480:7800::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a24-66.akam.net 2.16.130.66NOERROR, 5 ms, authoritativenoyes / yesrefused48878.27
a24-66.akam.net 2600:1480:9800::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.31
a9-67.akam.net 184.85.248.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.9
a9-67.akam.net 2a02:26f0:117::43NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7

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: a1-8.akam.net: "41824.9"; a1-8.akam.net: "41824.4"; a11-67.akam.net: "41824.7"; a11-67.akam.net: "41824.6"; a2-64.akam.net: "48878.32"; a2-64.akam.net: "48878.31"; a22-65.akam.net: "48878.27"; a22-65.akam.net: "48878.32"; a24-66.akam.net: "48878.27"; a24-66.akam.net: "48878.31"; a9-67.akam.net: "41824.9"; a9-67.akam.net: "41824.7". 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 2017012641 · primary a1-8.akam.net

Found

Primary (MNAME)
a1-8.akam.net
Contact (RNAME)
hostmaster.mcs.de
Serial
2017012641
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
a1-8.akam.net (193.108.91.8)2017012641
a1-8.akam.net (2600:1401:2::8)2017012641
a11-67.akam.net (84.53.139.67)2017012641
a11-67.akam.net (2600:1480:1::43)2017012641
a2-64.akam.net (95.100.174.64)2017012641
a2-64.akam.net (2600:1480:7000::40)2017012641
a22-65.akam.net (23.211.61.65)2017012641
a22-65.akam.net (2600:1480:7800::41)2017012641
a24-66.akam.net (2.16.130.66)2017012641
a24-66.akam.net (2600:1480:9800::42)2017012641
a9-67.akam.net (184.85.248.67)2017012641
a9-67.akam.net (2a02:26f0:117::43)2017012641

Checks

  • ✓ Serial 2017012641 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-8.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@mcs.de #25
    The SOA RNAME hostmaster.mcs.de means hostmaster@mcs.de.
  • ✓ Date-based serial #26
    The serial 2017012641 follows the YYYYMMDDnn convention (2017-01-26).

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

16 records at the apex

Found

Read from
193.108.91.8:53
TypeValueTTL
SOAa1-8.akam.net. hostmaster.mcs.de. 2017012641 28800 7200 604800 60021600
NSa11-67.akam.net.21600
NSa22-65.akam.net.21600
NSa9-67.akam.net.21600
NSa24-66.akam.net.21600
NSa1-8.akam.net.21600
NSa2-64.akam.net.21600
A2.16.204.13720
A2.16.204.15920
AAAA2a02:26f0:b700:3::210:cc9f20
AAAA2a02:26f0:b700:3::210:cc8920
MX0 ullapopken-de.mail.protection.outlook.com.3600
TXT"v=spf1 a mx a:mx1.popken.de a:mx2.popken.de ip4:62.55.182.68 include:spf.mandrillapp.com include:spf.protection.outlook.com ~all"300
TXT"google-site-verification=T0Jc99vhlDn8ee-OG4sxK-cDhxAZ21xgnA4JnuuNtHs"300
TXT"0afFnuKlwpKc5uTzoKvI+JjvqEsGGF0RrYbFpv70YlNjKxuIMP+5JlZq4B6sI7w2cTmf2YZOZAV7uTyf9TSkhg=="300
TXT"apple-domain-verification=-TUdOR7gxmUxrRBVNO1C539Mb3mro-SNHzfP0xPIPqk"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 6h; 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