wonen.nl

Checked 22 October 2026, 17:20 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 7 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/wonen.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/wonen.nl returned HTTP 429
    #3

Delegation

info

ns1.dhost.nl, ns2.dhost.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.dhost.nl, ns2.dhost.nl
NS in the zone
ns1.dhost.nl, ns2.dhost.nl
NameserverAddressesNetwork (AS)Glue
ns1.dhost.nl136.144.138.73 2a01:7c8:fff8:393:1810:f2db:9851:3e91AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL136.144.138.73 2a01:7c8:fff8:393:1810:f2db:9851:3e91
ns2.dhost.nl136.144.230.173 2a01:7c8:d005:11f:4662:a701:c6d3:4d8bAS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL136.144.230.173 2a01:7c8:d005:11f:4662:a701:c6d3:4d8b

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.dhost.nl, ns2.dhost.nl.
    #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 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS20857 (TRANSIP-AS - Signet B.V., NL): 4 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 .nl
    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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.dhost.nl 136.144.138.73NOERROR, 11 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.14
ns1.dhost.nl 2a01:7c8:fff8:393:1810:f2db:9851:3e91NOERROR, 11 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.14
ns2.dhost.nl 136.144.230.173NOERROR, 12 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.14
ns2.dhost.nl 2a01:7c8:d005:11f:4662:a701:c6d3:4d8bNOERROR, 17 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.14

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.dhost.nl: "PowerDNS Authoritative Server 4.1.14"; ns2.dhost.nl: "PowerDNS Authoritative Server 4.1.14". 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

warn

serial 2024053002 · primary ns1.dhost.nl

Found

Primary (MNAME)
ns1.dhost.nl
Contact (RNAME)
hostmaster.dhost.nl
Serial
2024053002
Refresh / retry
3600 s / 3600 s
Expire
1814400 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.dhost.nl (136.144.138.73)2024053002
ns1.dhost.nl (2a01:7c8:fff8:393:1810:f2db:9851:3e91)2024053002
ns2.dhost.nl (136.144.230.173)2024053002
ns2.dhost.nl (2a01:7c8:d005:11f:4662:a701:c6d3:4d8b)2024053002

Checks

  • ✓ Serial 2024053002 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 21d, negative TTL 1h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.dhost.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@dhost.nl #25
    The SOA RNAME hostmaster.dhost.nl means hostmaster@dhost.nl.
  • ✓ Date-based serial #26
    The serial 2024053002 follows the YYYYMMDDnn convention (2024-05-30).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
5 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
3943ECDSAP256SHA256 (13)SHA256 36B0BD64A8D3E141…yes

DNSKEY in the zone

Key tagRoleAlgorithm
3943KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 3943 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-05 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

9 records at the apex

Found

Read from
136.144.138.73:53
TypeValueTTL
SOAns1.dhost.nl. hostmaster.dhost.nl. 2024053002 3600 3600 1814400 3600300
NSns1.dhost.nl.300
NSns2.dhost.nl.300
A149.210.177.165300
MX20 mx2.zoho.eu.300
MX10 mx.zoho.eu.300
MX50 mx3.zoho.eu.300
TXT"v=spf1 a mx include:zoho.eu include:spf.dhost.nl include:_spf.exsilia.net include:eu.zcsend.net include:_spf.google.com include:_spf.exactonline.nl ~all"300
TXT"zoho-verification=zb24365221.zmverify.zoho.eu"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1h 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