fulda.de

Checked 21 October 2026, 22:32 UTC · via 8.8.8.8
!Passed with warnings
20 passed 4 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

warn

dns10.nethinks.com, dns9.nethinks.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
dns10.nethinks.com, dns9.nethinks.com
NS in the zone
dns10.nethinks.com, dns9.nethinks.com
NameserverAddressesNetwork (AS)Glue
dns10.nethinks.com212.218.210.10AS8319 NETHINKS-AS - NETHINKS GmbH, DE-
dns9.nethinks.com212.218.100.9AS8319 NETHINKS-AS - NETHINKS GmbH, DE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dns10.nethinks.com, dns9.nethinks.com.
    #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.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS8319 (NETHINKS-AS - NETHINKS GmbH, DE): 2 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 .com
    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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

warn

2 of 2 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns10.nethinks.com 212.218.210.10NOERROR, 7 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 11:51:37 by root@bh-centos-8.dev.cpanel.net)
dns9.nethinks.com 212.218.100.9NOERROR, 4 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 11:51:37 by root@bh-centos-8.dev.cpanel.net)

Checks

  • ✓ All respond #14
    All 2 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: dns10.nethinks.com: "PowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 11:51:37 by root@bh-centos-8.dev.cpanel.net)"; dns9.nethinks.com: "PowerDNS Authoritative Server 4.9.17 (built Aug 10 2026 11:51:37 by root@bh-centos-8.dev.cpanel.net)". 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

warn

serial 2026100901 · primary dns9.nethinks.com

Found

Primary (MNAME)
dns9.nethinks.com
Contact (RNAME)
support.nethinks.com
Serial
2026100901
Refresh / retry
3600 s / 7200 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
dns10.nethinks.com (212.218.210.10)2026100901
dns9.nethinks.com (212.218.100.9)2026100901

Checks

  • ✓ Serial 2026100901 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 2h should be shorter than refresh 1h. Current values: refresh 1h, retry 2h, expire 14d, negative TTL 1d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns9.nethinks.com is one of the listed nameservers.
  • ✓ Contact support@nethinks.com #25
    The SOA RNAME support.nethinks.com means support@nethinks.com.
  • ✓ Date-based serial #26
    The serial 2026100901 follows the YYYYMMDDnn convention (2026-10-09).

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

pass

12 records at the apex

Found

Read from
212.218.210.10:53
TypeValueTTL
SOAdns9.nethinks.com. support.nethinks.com. 2026100901 3600 7200 1209600 8640086400
NSdns9.nethinks.com.86400
NSdns10.nethinks.com.86400
A49.12.116.8314400
AAAA2a01:4f8:1c17:b020::114400
MX10 mx2.fulda.de.14400
MX10 mx1.fulda.de.14400
TXT"v=spf1 mx include:_spf1.ekom21.de -all"14400
CAA0 issue "certum.pl"14400
CAA0 issue "digicert.com"14400
CAA0 issue "letsencrypt.org"14400
CAA0 issue "sectigo.com"14400

Checks

  • ✓ TTLs within range #32
    TTLs: A 4h, AAAA 4h, MX 4h, NS 1d.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: certum.pl, digicert.com, letsencrypt.org, sectigo.com.