lto.de

Checked 21 October 2026, 23:20 UTC · via 8.8.8.8
!Passed with warnings
22 passed 1 warning 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

info

edns9.ultradns.biz, wkdis2.wkdis.de

Found

Parent zone
de
Delegation from
a.nic.de (194.0.0.53)
NS at the parent
edns9.ultradns.biz, wkdis2.wkdis.de
NS in the zone
edns9.ultradns.biz, wkdis2.wkdis.de
NameserverAddressesNetwork (AS)Glue
edns9.ultradns.biz204.74.67.9 2610:a1:1015::209AS12008 VERCARA - Vercara, LLC, US AS12008 VERCARA - Vercara, LLC, US-
wkdis2.wkdis.de212.75.39.150AS12399 SCAN-PLUS-AS - q.beyond AG, DE212.75.39.150

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: edns9.ultradns.biz, wkdis2.wkdis.de.
    #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 1 IPv6 /48.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12008 (VERCARA - Vercara, LLC, US): 2 addresses; AS12399 (SCAN-PLUS-AS - q.beyond AG, DE): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .biz, .de.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: wkdis2.wkdis.de.
    #13

Nameservers

info

3 of 3 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
edns9.ultradns.biz 204.74.67.9NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
edns9.ultradns.biz 2610:a1:1015::209NOERROR, 4 ms, authoritativenoyes / yesrefusedUltraDNS Nameserver
wkdis2.wkdis.de 212.75.39.150NOERROR, 7 ms, authoritativenoyes / yesrefused-

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: edns9.ultradns.biz: "UltraDNS Nameserver".
    #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 2016122278 · primary wkdis2.wkdis.de

Found

Primary (MNAME)
wkdis2.wkdis.de
Contact (RNAME)
hostmaster.wkdis.de
Serial
2016122278
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
edns9.ultradns.biz (204.74.67.9)2016122278
edns9.ultradns.biz (2610:a1:1015::209)2016122278
wkdis2.wkdis.de (212.75.39.150)2016122278

Checks

  • ✓ Serial 2016122278 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver wkdis2.wkdis.de is one of the listed nameservers.
  • ✓ Contact hostmaster@wkdis.de #25
    The SOA RNAME hostmaster.wkdis.de means hostmaster@wkdis.de.
  • ✓ Date-based serial #26
    The serial 2016122278 follows the YYYYMMDDnn convention (2016-12-22).

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

12 records at the apex

Found

Read from
204.74.67.9:53
TypeValueTTL
SOAwkdis2.wkdis.de. hostmaster.wkdis.de. 2016122278 10800 3600 604800 300300
NSedns9.ultradns.biz.300
NSwkdis2.wkdis.de.300
A13.93.52.132300
MX100 wolterskluwer-com.mail.protection.outlook.com.300
TXT"d44ddo7etvlp4j7hv4ijsv3ivn"300
TXT"jnb5p12aua5itsk20sdqe41oqt"300
TXT"_2lxryfgd53fsnmym4cefs6he71t39b6"300
TXT"_4oc2330i0878fb0jow4ycy97mjzubv9"300
TXT"facebook-domain-verification=datpc88lw6zf5da7izekj7pe3q5mti"300
TXT"google-site-verification=RQmHFa4JuFB1SG4_6T7IDqAn8qj5vwykh8oRV5v2F_c"300
TXT"v=spf1 ip4:116.202.156.50 ip4:81.169.227.107 ip4:157.90.182.244 ip4:81.169.225.78 ip4:46.224.68.15 ip4:20.52.132.102 ip4:212.211.138.0/23 include:spf.wolterskluwer.com include:spf.srv2.de include:spf.mandrillapp.com -all"300

Checks

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