andechs.de

Checked 21 October 2026, 21:28 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 warnings 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

warn

ns1.sunny-systems.com, ns2.sunny-systems.com, ns3.sunny-systems.com

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.sunny-systems.com, ns2.sunny-systems.com, ns3.sunny-systems.com
NS in the zone
ns1.sunny-systems.com, ns2.sunny-systems.com, ns3.sunny-systems.com
NameserverAddressesNetwork (AS)Glue
ns1.sunny-systems.com194.50.187.134AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns2.sunny-systems.com194.0.182.1AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns3.sunny-systems.com193.227.117.124AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.sunny-systems.com, ns2.sunny-systems.com, ns3.sunny-systems.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 0 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 3 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

info

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.sunny-systems.com 194.50.187.134NOERROR, 12 ms, authoritativenoyes / yesrefusedreg-wie1
ns2.sunny-systems.com 194.0.182.1NOERROR, 3 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns3.sunny-systems.com 193.227.117.124NOERROR, 3 ms, authoritativenoyes / yesrefusedRcodeZero DNS

Checks

  • ✓ All respond #14
    All 3 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.sunny-systems.com: "reg-wie1"; ns2.sunny-systems.com: "RcodeZero DNS"; ns3.sunny-systems.com: "RcodeZero DNS".
    #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 2026052903 · primary ns1.sunny-systems.com

Found

Primary (MNAME)
ns1.sunny-systems.com
Contact (RNAME)
hostmaster.andechs.de
Serial
2026052903
Refresh / retry
86400 s / 7200 s
Expire
3600000 s
Negative TTL
172800 s

Serial per nameserver

NameserverSerial
ns1.sunny-systems.com (194.50.187.134)2026052903
ns2.sunny-systems.com (194.0.182.1)2026052903
ns3.sunny-systems.com (193.227.117.124)2026052903

Checks

  • ✓ Serial 2026052903 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 2d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 2h, expire 1000h, negative TTL 2d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.sunny-systems.com is one of the listed nameservers.
  • ✓ Contact hostmaster@andechs.de #25
    The SOA RNAME hostmaster.andechs.de means hostmaster@andechs.de.
  • ✓ Date-based serial #26
    The serial 2026052903 follows the YYYYMMDDnn convention (2026-05-29).

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

8 records at the apex

Found

Read from
194.50.187.134:53
TypeValueTTL
SOAns1.sunny-systems.com. hostmaster.andechs.de. 2026052903 86400 7200 3600000 1728003600
NSns3.sunny-systems.com.3600
NSns1.sunny-systems.com.3600
NSns2.sunny-systems.com.3600
A176.52.242.2113600
MX10 mail.andechs.de.3600
TXT"MS=ms23446818"3600
TXT"v=spf1 mx ip4:5.7.139.202/32 include:mail.sankt-bonifaz.de include:agenturserver.de ~all"3600

Checks

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