wsi.de

Checked 22 October 2026, 01:02 UTC · via 8.8.8.8
!Passed with warnings
23 passed 3 warnings 0 failed 3 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

ns-ext.jmc-dns.de, ns-ext.jmc-dns.net, ns1.jmc.net, ns2.jmc.net

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
ns-ext.jmc-dns.de, ns-ext.jmc-dns.net, ns1.jmc.net, ns2.jmc.net
NS in the zone
ns-ext.jmc-dns.de, ns-ext.jmc-dns.net, ns1.jmc.net, ns2.jmc.net
NameserverAddressesNetwork (AS)Glue
ns-ext.jmc-dns.de57.129.125.74AS16276 OVH - OVH SAS, FR-
ns-ext.jmc-dns.net138.199.203.20AS24940 HETZNER-AS - Hetzner Online GmbH, DE-
ns1.jmc.net194.187.184.10AS3209 VODANET - Vodafone GmbH, DE-
ns2.jmc.net194.187.186.2AS3209 VODANET - Vodafone GmbH, DE-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-ext.jmc-dns.de, ns-ext.jmc-dns.net, ns1.jmc.net, ns2.jmc.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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS16276 (OVH - OVH SAS, FR): 1 address; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 1 address; AS3209 (VODANET - Vodafone GmbH, DE): 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

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-ext.jmc-dns.de 57.129.125.74NOERROR, 5 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.0.7 (built Aug 5 2026 13:28:11 by root@localhost)
ns-ext.jmc-dns.net 138.199.203.20NOERROR, 12 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.0.7 (built Aug 5 2026 13:28:11 by root@localhost)
ns1.jmc.net 194.187.184.10NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns2.jmc.net 194.187.186.2NOERROR, 12 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns-ext.jmc-dns.de: "PowerDNS Authoritative Server 5.0.7 (built Aug 5 2026 13:28:11 by root@localhost)"; ns-ext.jmc-dns.net: "PowerDNS Authoritative Server 5.0.7 (built Aug 5 2026 13:28:11 by root@localhost)". 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

pass

serial 2020070903 · primary ns1.jmc.net

Found

Primary (MNAME)
ns1.jmc.net
Contact (RNAME)
dns-master.jmc.net
Serial
2020070903
Refresh / retry
86400 s / 7200 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns-ext.jmc-dns.de (57.129.125.74)2020070903
ns-ext.jmc-dns.net (138.199.203.20)2020070903
ns1.jmc.net (194.187.184.10)2020070903
ns2.jmc.net (194.187.186.2)2020070903

Checks

  • ✓ Serial 2020070903 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.jmc.net is one of the listed nameservers.
  • ✓ Contact dns-master@jmc.net #25
    The SOA RNAME dns-master.jmc.net means dns-master@jmc.net.
  • ✓ Date-based serial #26
    The serial 2020070903 follows the YYYYMMDDnn convention (2020-07-09).

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

info

9 records at the apex

Found

Read from
57.129.125.74:53
TypeValueTTL
SOAns1.jmc.net. dns-master.jmc.net. 2020070903 86400 7200 1209600 36003599
NSns-ext.jmc-dns.net.3599
NSns2.jmc.net.3599
NSns-ext.jmc-dns.de.3599
NSns1.jmc.net.3599
A194.187.187.1623600
MX10 cluster-a.mailcontrol.com.3600
MX10 cluster-e.mailcontrol.com.3600
TXT"google-site-verification=F92LbmiMiYPkRjMLHZU_AOLP5qGgRZh32nBfCOXFVCU"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 59m59s. The NS TTL at the parent is 1d and in the zone 59m59s; 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