mannol.de

Checked 21 October 2026, 23:21 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 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

ns1.popidns.de, ns2.popidns.eu

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.popidns.de, ns2.popidns.eu
NS in the zone
ns1.popidns.de, ns2.popidns.eu
NameserverAddressesNetwork (AS)Glue
ns1.popidns.de92.223.100.53 2a03:90c0:9990::1053AS199524 GCORE - G-Core Labs S.A., LU AS199524 GCORE - G-Core Labs S.A., LU-
ns2.popidns.eu92.223.77.53 2a03:90c0:9990::2053AS199524 GCORE - G-Core Labs S.A., LU AS199524 GCORE - G-Core Labs S.A., LU-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.popidns.de, ns2.popidns.eu.
    #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.
  • i
    One address family in one network
    all IPv6 addresses are in 2a03:90c0:9990::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS199524 (GCORE - G-Core Labs S.A., LU): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .eu.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.popidns.de 92.223.100.53NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns1.popidns.de 2a03:90c0:9990::1053NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns2.popidns.eu 92.223.77.53NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns2.popidns.eu 2a03:90c0:9990::2053NOERROR, 5 ms, authoritativenoyes / yesrefused-

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.
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 1775808602 · primary ns1.popidns.de

Found

Primary (MNAME)
ns1.popidns.de
Contact (RNAME)
domnoc.pop-i.de
Serial
1775808602
Refresh / retry
5400 s / 3600 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.popidns.de (92.223.100.53)1775808602
ns1.popidns.de (2a03:90c0:9990::1053)1775808602
ns2.popidns.eu (92.223.77.53)1775808602
ns2.popidns.eu (2a03:90c0:9990::2053)1775808602

Checks

  • ✓ Serial 1775808602 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 90m, retry 1h, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.popidns.de is one of the listed nameservers.
  • ✓ Contact domnoc@pop-i.de #25
    The SOA RNAME domnoc.pop-i.de means domnoc@pop-i.de.
  • ✓ Timestamp serial #26
    The serial 1775808602 is a Unix timestamp (2026-04-10 08:10 UTC).

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

7 records at the apex

Found

Read from
92.223.100.53:53
TypeValueTTL
SOAns1.popidns.de. domnoc.pop-i.de. 1775808602 5400 3600 1209600 300300
NSns1.popidns.de.300
NSns2.popidns.eu.300
A212.132.116.11486400
MX10 mx1.pop-i.de.86400
MX20 mx2.pop-i.de.86400
TXT"v=spf1 include:spfinclude.pop-i.de -all"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, NS 5m. The NS TTL at the parent is 1d and in the zone 5m; 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