wdka.nl

Checked 22 October 2026, 17:11 UTC · via 8.8.8.8
!Passed with warnings
21 passed 4 warnings 0 failed 4 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/wdka.nl returned HTTP 429

Checks

  • i
    .nl 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
    .nl is delegated in the root zone and DNSSEC-signed.
  • i
    Could not be checked
    The RDAP lookup failed, so this could not be checked: https://rdap.sidn.nl/domain/wdka.nl returned HTTP 429
    #3

Delegation

warn

ns1.initworks-cld.net, ns2.initworks-cld.net, ns3.initworks-cld.net, ns4.initworks-cld.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.initworks-cld.net, ns2.initworks-cld.net, ns3.initworks-cld.net, ns4.initworks-cld.net
NS in the zone
ns1.initworks-cld.net, ns2.initworks-cld.net, ns3.initworks-cld.net, ns4.initworks-cld.net
NameserverAddressesNetwork (AS)Glue
ns1.initworks-cld.net194.61.65.91AS210710 Cloudcontainers - Initworks b.v., NL-
ns2.initworks-cld.net194.61.64.245AS210710 Cloudcontainers - Initworks b.v., NL-
ns3.initworks-cld.net185.211.250.106AS210710 Cloudcontainers - Initworks b.v., NL-
ns4.initworks-cld.net98.71.251.53AS8075 MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.initworks-cld.net, ns2.initworks-cld.net, ns3.initworks-cld.net, ns4.initworks-cld.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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS210710 (Cloudcontainers - Initworks b.v., NL): 3 addresses; AS8075 (MICROSOFT-CORP-MSN-AS-BLOCK - Microsoft Corporation, US): 1 address.
  • i
    All nameserver names under .net
    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

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.initworks-cld.net 194.61.65.91NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.0.2 (built Dec 11 2025 09:01:12 by root@localhost)
ns2.initworks-cld.net 194.61.64.245NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.0.2 (built Dec 11 2025 09:01:12 by root@localhost)
ns3.initworks-cld.net 185.211.250.106NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.0.7 (built Aug 5 2026 13:25:44 by root@localhost)
ns4.initworks-cld.net 98.71.251.53NOERROR, 12 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.0.2 (built Dec 11 2025 09:01:12 by root@localhost)

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: ns1.initworks-cld.net: "PowerDNS Authoritative Server 5.0.2 (built Dec 11 2025 09:01:12 by root@localhost)"; ns2.initworks-cld.net: "PowerDNS Authoritative Server 5.0.2 (built Dec 11 2025 09:01:12 by root@localhost)"; ns3.initworks-cld.net: "PowerDNS Authoritative Server 5.0.7 (built Aug 5 2026 13:25:44 by root@localhost)"; ns4.initworks-cld.net: "PowerDNS Authoritative Server 5.0.2 (built Dec 11 2025 09:01:12 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 2026092203 · primary ns1.initworks-cld.net

Found

Primary (MNAME)
ns1.initworks-cld.net
Contact (RNAME)
postmaster.cloudcontainers.net
Serial
2026092203
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.initworks-cld.net (194.61.65.91)2026092203
ns2.initworks-cld.net (194.61.64.245)2026092203
ns3.initworks-cld.net (185.211.250.106)2026092203
ns4.initworks-cld.net (98.71.251.53)2026092203

Checks

  • ✓ Serial 2026092203 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 ns1.initworks-cld.net is one of the listed nameservers.
  • ✓ Contact postmaster@cloudcontainers.net #25
    The SOA RNAME postmaster.cloudcontainers.net means postmaster@cloudcontainers.net.
  • ✓ Date-based serial #26
    The serial 2026092203 follows the YYYYMMDDnn convention (2026-09-22).

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

warn

10 records at the apex

Found

Read from
194.61.65.91:53
TypeValueTTL
SOAns1.initworks-cld.net. postmaster.cloudcontainers.net. 2026092203 10800 3600 604800 300300
NSns4.initworks-cld.net.3600
NSns2.initworks-cld.net.3600
NSns1.initworks-cld.net.3600
NSns3.initworks-cld.net.3600
A18.192.192.11360
MX10 mx1.wdka.nl.300
MX10 mx2.wdka.nl.300
TXT"v=spf1 mx ip4:80.75.76.36 ip4:80.75.72.0/24 ip4:80.69.72.0/24 ip4:10.1.44.0/24 ip4:194.61.64.0/24 include:spf-cust.initworks.com ?all"300
TXT"HARICA-u0Itu59ooGVgqQEv1Na"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #32
  • ✓ 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