sonnen.de

Checked 22 October 2026, 00:23 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 4 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

pass

ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
NS in the zone
ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com
NameserverAddressesNetwork (AS)Glue
ns1.first-ns.de213.239.242.238 2a01:4f8:0:a101::a:1AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
robotns2.second-ns.de213.133.100.103 2a01:4f8:0:1::5ddc:2AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
robotns3.second-ns.com193.47.99.3 2001:67c:192c::add:a3AS12337 NORIS-NETWORK - noris network AG, DE AS12337 NORIS-NETWORK - noris network AG, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.first-ns.de, robotns2.second-ns.de, robotns3.second-ns.com.
  • ✓ 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 3 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12337 (NORIS-NETWORK - noris network AG, DE): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 4 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .de.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.first-ns.de 213.239.242.238NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1.first-ns.de 2a01:4f8:0:a101::a:1NOERROR, 4 ms, authoritativenoyes / yesrefused-
robotns2.second-ns.de 213.133.100.103NOERROR, 5 ms, authoritativenoyes / yesrefused-
robotns2.second-ns.de 2a01:4f8:0:1::5ddc:2NOERROR, 4 ms, authoritativenoyes / yesrefused-
robotns3.second-ns.com 193.47.99.3NOERROR, 8 ms, authoritativenoyes / yesrefused-
robotns3.second-ns.com 2001:67c:192c::add:a3NOERROR, 7 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 6 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

info

serial 2026102110 · primary hydrogen.ns.hetzner.com

Found

Primary (MNAME)
hydrogen.ns.hetzner.com
Contact (RNAME)
dns.hetzner.com
Serial
2026102110
Refresh / retry
14400 s / 1800 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ns1.first-ns.de (213.239.242.238)2026102110
ns1.first-ns.de (2a01:4f8:0:a101::a:1)2026102110
robotns2.second-ns.de (213.133.100.103)2026102110
robotns2.second-ns.de (2a01:4f8:0:1::5ddc:2)2026102110
robotns3.second-ns.com (193.47.99.3)2026102110
robotns3.second-ns.com (2001:67c:192c::add:a3)2026102110

Checks

  • ✓ Serial 2026102110 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 7d, negative TTL 30m.
  • i
    Hidden master
    The primary nameserver hydrogen.ns.hetzner.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 dns@hetzner.com #25
    The SOA RNAME dns.hetzner.com means dns@hetzner.com.
  • ✓ Date-based serial #26
    The serial 2026102110 follows the YYYYMMDDnn convention (2026-10-21).

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

info

27 records at the apex

Found

Read from
213.239.242.238:53
TypeValueTTL
SOAhydrogen.ns.hetzner.com. dns.hetzner.com. 2026102110 14400 1800 604800 18001800
NSrobotns2.second-ns.de.1800
NSrobotns3.second-ns.com.1800
NSns1.first-ns.de.1800
A198.202.211.1300
MX10 sonnen-de.mail.protection.outlook.com.1800
TXT"have-i-been-pwned-verification=2b72c9d80e489fa82baea592dfdffd3e"1800
TXT"have-i-been-pwned-verification=9f56fb2cca2e8744632b36e2dacf56b9"1800
TXT"mongodb-site-verification=cUKXPVBzlsgg7EV0NujxRP3KVyShzKRF"1800
TXT"pardot317971=09fd4250c6db2abc1e3b6927ca855202a59faf6c9f478f4a484af7970a2b5ebc"1800
TXT"pardot317971=5e6a4491d2cd3f1ea1145bb779c0ae0d18038483aa17e793dd40f76aec6cc289"1800
TXT"pardot317971=8440106a3c2307703250c44f638d641b713e779567c16ca04198ecaad08ccd1b"1800
TXT"pardot317971=cae93bba690aa3cd4678052033d74742fd0be9ce34388485206d07b06d598917"1800
TXT"pardot317971=f2f4070c949d63cfa1d553af097ab5eb688ec3910e843897317b114c998ca970"1800
TXT"pardot_317971_*=0a8e48ff1767a91cb924fd2d3544b0019235ab9c473155254d43189ab768c574"1800
TXT"pardot_317971_*=2381d6cb0e89b0bec0e8df1b5d918086ae638e934d9e2eaa49b478b892a0d65b"1800
TXT"pardot_317971_*=f2f4070c949d63cfa1d553af097ab5eb688ec3910e843897317b114c998ca970"1800
TXT"status-page-domain-verification=h0tz1l8z8dd2"1800
TXT"v=spf1 ip4:31.193.51.113 ip4:195.201.122.251 ip4:213.244.192.90 ip4:155.56.221.13 ip4:155.56.221.14 ip4:5.35.234.234 ip4:80.237.138.0/24 ip4:92.51.170.64/27 ip6:2a01:488:42::/48 include:spf.protection.outlook.com include:_spf.salesforce.com include:server" "s.mcsv.net include" ":aspmx.pardot.com include:stspg-customer.com ip4:193.9.21.45 ~all"1800
TXT"wrike-verification=MTExMDM3ODo1ZTE3NWRkZDZlNWU5NmE0MzNiNGYxMmY5Mjc0NjM5NTRiZmE4YjA1ZTc1NGI0ZTk1MDhiMmRjZjljYjhhZTRi"1800
TXT"MS=ms96286312"1800
TXT"adobe-idp-site-verification=0d9d90ddfc7c038c9bcadb7febe8a56b874b3a935dcb0aacce5df786d764e453"1800
TXT"amazonses:rn6Hd5N1fP++QKLPrtZqZaAnPTumL5l33I39A2LZ630="1800
TXT"amazonses:w+FpafdVuhUunNPIQptrhNOnQmw/CDBWxzn7RvIChAs="1800
TXT"apple-domain-verification=qSt1codbU5zt9Bbp"1800
TXT"atlassian-domain-verification=EkcECyj/5zMBZ65sDNrHNti3VZDZbEaPzqA8ZCxerhf67SuLKN/G8rjSDj//qdIL"1800
TXT"google-site-verification=XAuuLivnRtKu94ngNusEkKtyEvgiM9zwqd7bjc8UbzM"1800

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 30m, NS 30m. The NS TTL at the parent is 1d and in the zone 30m; 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