bagso.de

Checked 21 October 2026, 21:34 UTC · via 8.8.8.8
✗Problems found
21 passed 3 warnings 1 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

warn

ns1.st-nameserver.de, ns2.st-dns.de, ns3.st-dns.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns1.st-nameserver.de, ns2.st-dns.de, ns3.st-dns.net
NS in the zone
ns1.st-nameserver.de, ns2.st-dns.de, ns3.st-dns.net
NameserverAddressesNetwork (AS)Glue
ns1.st-nameserver.de51.195.22.9AS16276 OVH - OVH SAS, FR-
ns2.st-dns.de51.75.151.198AS16276 OVH - OVH SAS, FR-
ns3.st-dns.net185.117.182.99AS12557 SimpleThings - SimpleThings GmbH, DE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.st-nameserver.de, ns2.st-dns.de, ns3.st-dns.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 3 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12557 (SimpleThings - SimpleThings GmbH, DE): 1 address; AS16276 (OVH - OVH SAS, FR): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .de, .net.
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.st-nameserver.de 51.195.22.9NOERROR, 4 ms, authoritativenono / norefused-
ns2.st-dns.de 51.75.151.198NOERROR, 5 ms, authoritativenono / norefused-
ns3.st-dns.net 185.117.182.99NOERROR, 4 ms, authoritativenono / norefused-

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.
  • ✓ 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.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns1.st-nameserver.de (51.195.22.9): dial tcp 51.195.22.9:53: connect: connection refused; ns2.st-dns.de (51.75.151.198): dial tcp 51.75.151.198:53: connect: connection refused; ns3.st-dns.net (185.117.182.99): dial tcp 185.117.182.99:53: connect: connection refused.
    #19
  • !
    No EDNS
    These nameservers don't support EDNS(0), needed for DNSSEC and answers larger than 512 bytes: ns1.st-nameserver.de (51.195.22.9), ns2.st-dns.de (51.75.151.198), ns3.st-dns.net (185.117.182.99).
    #20
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 1791808801 · primary ns1.st-nameserver.de

Found

Primary (MNAME)
ns1.st-nameserver.de
Contact (RNAME)
dns.simplethings.de
Serial
1791808801
Refresh / retry
16384 s / 2048 s
Expire
1048576 s
Negative TTL
2560 s

Serial per nameserver

NameserverSerial
ns1.st-nameserver.de (51.195.22.9)1791808801
ns2.st-dns.de (51.75.151.198)1791808801
ns3.st-dns.net (185.117.182.99)1791808801

Checks

  • ✓ Serial 1791808801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h33m4s, retry 34m8s, expire 291h16m16s, negative TTL 42m40s.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.st-nameserver.de is one of the listed nameservers.
  • ✓ Contact dns@simplethings.de #25
    The SOA RNAME dns.simplethings.de means dns@simplethings.de.
  • ✓ Timestamp serial #26
    The serial 1791808801 is a Unix timestamp (2026-10-12 12:40 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

9 records at the apex

Found

Read from
51.195.22.9:53
TypeValueTTL
SOAns1.st-nameserver.de. dns.simplethings.de. 1791808801 16384 2048 1048576 25602560
NSns1.st-nameserver.de.259200
NSns2.st-dns.de.259200
NSns3.st-dns.net.259200
A51.195.22.1003600
MX0 bagso-de.mail.protection.outlook.com.3600
TXT"v=spf1 ip4:217.76.110.0/23 ip4:178.63.68.14 ip4:195.201.5.9 include:spf.protection.outlook.com include:spf.simplethings.de include:spfa.myconvento.com include:spf.emailsys.net -all"3600
TXT"MS=593DBCB96E47DE9A7A78917D3B996AA8ACD1652C"3600
TXT"MS=ms13068427"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 3d. The NS TTL at the parent is 1d and in the zone 3d; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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