iucn.nl

Checked 22 October 2026, 14:00 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 6 info

Registration

info

.nl country-code · Intakt Holding B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Intakt Holding B.V.
Registered
16 May 2000
Last changed
14 August 2023
Status
active
Registry nameservers
chloe.intakt.com, kimberley.intakt.com, ns2.intakt.com
RDAP server
https://rdap.sidn.nl/

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
    Expiry date not published
    The registry does not publish the expiry date in RDAP. Check it with your registrar.
    #3
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

chloe.intakt.com, kimberley.intakt.com, ns2.intakt.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
chloe.intakt.com, kimberley.intakt.com, ns2.intakt.com
NS in the zone
chloe.intakt.com, kimberley.intakt.com, ns2.intakt.com
NameserverAddressesNetwork (AS)Glue
chloe.intakt.com95.211.203.24 2001:1af8:4010:a045:2::1AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL-
kimberley.intakt.com91.239.33.224 2a04:9040:0:3100::150e:5252AS58138 AS58138 -
ns2.intakt.com91.239.33.223 2a04:9040:0:3100::140e:4343AS58138 KORTON_INTERNET - Korton Computer Communication (KCC) B.V., NL AS58138 KORTON_INTERNET - Korton Computer Communication (KCC) B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to chloe.intakt.com, kimberley.intakt.com, ns2.intakt.com.
  • ✓ 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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS58138 (KORTON_INTERNET - Korton Computer Communication (KCC) B.V., NL): 4 addresses; AS60781 (LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL): 2 addresses.
  • i
    All nameserver names under .com
    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

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
chloe.intakt.com 95.211.203.24NOERROR, 13 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu
chloe.intakt.com 2001:1af8:4010:a045:2::1NOERROR, 11 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.7-Ubuntu
kimberley.intakt.com 91.239.33.224NOERROR, 10 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.6-Ubuntu
kimberley.intakt.com 2a04:9040:0:3100::150e:5252NOERROR, 11 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.6-Ubuntu
ns2.intakt.com 91.239.33.223NOERROR, 10 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.6-Ubuntu
ns2.intakt.com 2a04:9040:0:3100::140e:4343NOERROR, 11 ms, authoritativenoyes / yesrefused9.18.39-0ubuntu0.22.04.6-Ubuntu

Checks

  • ✓ All respond #14
    All 6 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: chloe.intakt.com: "9.18.39-0ubuntu0.22.04.7-Ubuntu"; kimberley.intakt.com: "9.18.39-0ubuntu0.22.04.6-Ubuntu"; ns2.intakt.com: "9.18.39-0ubuntu0.22.04.6-Ubuntu". 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 2026051885 · primary ns2.intakt.com

Found

Primary (MNAME)
ns2.intakt.com
Contact (RNAME)
hostmaster.intakt.com
Serial
2026051885
Refresh / retry
900 s / 900 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
chloe.intakt.com (95.211.203.24)2026051885
chloe.intakt.com (2001:1af8:4010:a045:2::1)2026051885
kimberley.intakt.com (91.239.33.224)2026051885
kimberley.intakt.com (2a04:9040:0:3100::150e:5252)2026051885
ns2.intakt.com (91.239.33.223)2026051885
ns2.intakt.com (2a04:9040:0:3100::140e:4343)2026051885

Checks

  • ✓ Serial 2026051885 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d; retry 15m should be shorter than refresh 15m. Current values: refresh 15m, retry 15m, expire 7d, negative TTL 1h.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns2.intakt.com is one of the listed nameservers.
  • ✓ Contact hostmaster@intakt.com #25
    The SOA RNAME hostmaster.intakt.com means hostmaster@intakt.com.
  • ✓ Date-based serial #26
    The serial 2026051885 follows the YYYYMMDDnn convention (2026-05-18).

DNSSEC

info

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
45464ECDSAP256SHA256 (13)SHA256 55F4ED3C035ECEC0…yes

DNSKEY in the zone

Key tagRoleAlgorithm
22011ZSK (256)ECDSAP256SHA256 (13)
45464KSK (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 45464 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-01 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-01 15:03 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

8 records at the apex

Found

Read from
95.211.203.24:53
TypeValueTTL
SOAns2.intakt.com. hostmaster.intakt.com. 2026051885 900 900 604800 3600900
NSns2.intakt.com.900
NSchloe.intakt.com.900
NSkimberley.intakt.com.900
A46.225.164.250900
MX10 iucn-nl.mail.protection.outlook.com.900
TXT"v=spf1 mx ip4:192.254.119.131 ip4:84.53.100.211 include:spf.protection.outlook.com -all"900
TXT"google-site-verification=L8DcKS-2OssIP4sgyyARd-lPqIwR_1Unc9CXBQN9YZc"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, MX 15m, NS 15m. The NS TTL at the parent is 1h and in the zone 15m; 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