cultuurfonds.nl

Checked 21 October 2026, 21:00 UTC · via 8.8.8.8
✗Problems found
26 passed 1 warning 1 failed 7 info

Registration

info

.nl country-code · Realtime Register

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Realtime Register
Registered
10 July 2000
Last changed
1 February 2025
Status
active
Registry nameservers
ns1.argewebhosting.eu, ns2.argewebhosting.com, ns3.argewebhosting.nl
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

ns1.argewebhosting.eu, ns2.argewebhosting.com, ns3.argewebhosting.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.argewebhosting.eu, ns2.argewebhosting.com, ns3.argewebhosting.nl
NS in the zone
ns1.argewebhosting.eu, ns2.argewebhosting.com, ns3.argewebhosting.nl
NameserverAddressesNetwork (AS)Glue
ns1.argewebhosting.eu31.25.98.210 2a05:1500:702:0:1c00:eff:fe00:ceAS48635 CLDIN-NL - Your Hosting B.V., NL AS48635 CLDIN-NL - Your Hosting B.V., NL-
ns2.argewebhosting.com31.25.98.169 2a05:1500:702:0:1c00:13ff:fe00:a5AS48635 CLDIN-NL - Your Hosting B.V., NL AS48635 CLDIN-NL - Your Hosting B.V., NL-
ns3.argewebhosting.nl92.63.168.137 2a05:1500:600:7:1c00:55ff:fe00:f1aAS48635 CLDIN-NL - Your Hosting B.V., NL AS48635 CLDIN-NL - Your Hosting B.V., NL92.63.168.137 2a05:1500:600:7:1c00:55ff:fe00:f1a

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.argewebhosting.eu, ns2.argewebhosting.com, ns3.argewebhosting.nl.
  • ✓ 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 (AS48635 (CLDIN-NL - Your Hosting B.V., NL): 6 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .com, .eu, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.argewebhosting.eu 31.25.98.210NOERROR, 14 ms, authoritativenono / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns1.argewebhosting.eu 2a05:1500:702:0:1c00:eff:fe00:ceNOERROR, 15 ms, authoritativenono / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns2.argewebhosting.com 31.25.98.169NOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns2.argewebhosting.com 2a05:1500:702:0:1c00:13ff:fe00:a5NOERROR, 11 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.argewebhosting.nl 92.63.168.137NOERROR, 14 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
ns3.argewebhosting.nl 2a05:1500:600:7:1c00:55ff:fe00:f1aNOERROR, 14 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.argewebhosting.eu: "Served by PowerDNS - https://www.powerdns.com/"; ns2.argewebhosting.com: "Served by PowerDNS - https://www.powerdns.com/"; ns3.argewebhosting.nl: "Served by PowerDNS - https://www.powerdns.com/".
    #17
  • ✓ Zone transfers refused #18
    No nameserver allows a zone transfer to the public.
  • ✗
    No DNS over TCP
    DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns1.argewebhosting.eu (31.25.98.210): read tcp 46.225.38.91:44638->31.25.98.210:53: i/o timeout; ns1.argewebhosting.eu (2a05:1500:702:0:1c00:eff:fe00:ce): read tcp [2a01:4f8:1c1c:eebf::1]:59680->[2a05:1500:702:0:1c00:eff:fe00:ce]:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

info

serial 2026073106 · primary ns01.is.nl

Found

Primary (MNAME)
ns01.is.nl
Contact (RNAME)
domain-admin.is.nl
Serial
2026073106
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
14400 s

Serial per nameserver

NameserverSerial
ns1.argewebhosting.eu (31.25.98.210)2026073106
ns1.argewebhosting.eu (2a05:1500:702:0:1c00:eff:fe00:ce)2026073106
ns2.argewebhosting.com (31.25.98.169)2026073106
ns2.argewebhosting.com (2a05:1500:702:0:1c00:13ff:fe00:a5)2026073106
ns3.argewebhosting.nl (92.63.168.137)2026073106
ns3.argewebhosting.nl (2a05:1500:600:7:1c00:55ff:fe00:f1a)2026073106

Checks

  • ✓ Serial 2026073106 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 4h.
  • i
    Hidden master
    The primary nameserver ns01.is.nl is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact domain-admin@is.nl #25
    The SOA RNAME domain-admin.is.nl means domain-admin@is.nl.
  • ✓ Date-based serial #26
    The serial 2026073106 follows the YYYYMMDDnn convention (2026-07-31).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
1 iterations, 1-byte salt
Signatures valid until
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
60409RSASHA256 (8)SHA256 36B1E77C0E7ED586…yes

DNSKEY in the zone

Key tagRoleAlgorithm
18786ZSK (256)RSASHA256 (8)
60409KSK (257)RSASHA256 (8)

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 60409 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 1 iteration and a 1-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

info

10 records at the apex

Found

Read from
31.25.98.210:53
TypeValueTTL
SOAns01.is.nl. domain-admin.is.nl. 2026073106 10800 3600 604800 144003600
NSns2.argewebhosting.com.3600
NSns3.argewebhosting.nl.3600
NSns1.argewebhosting.eu.3600
A178.22.57.92600
AAAA2a00:1e28:3:4088::1600
MX0 cultuurfonds-nl.mail.protection.outlook.com.3600
TXT"brevo-code:58d254059ac06520d90a254ee3a46af2"600
TXT"DomainVerification=8RSFJ5UFEHVOI8AJJRZDKHGJ1A134Z92AZQFNQDGUK19XLYMZSOSLBLPFTJZZRHW"600
TXT"v=spf1 include:spf.protection.outlook.com include:_spf.cobytes.email ip4:85.17.68.30 include:_spf.exonet.nl ip4:135.84.216.0/22 ip4:159.92.157.4 ip4:92.68.219.231 include:_spf.psm.knowbe4.com include:spf.sendinblue.com ip4:185.166.140.16 ip4:184.173.153.2" "08 ip4:66.240.227.0/24 ip4:34.245.210.0/24 ip4:52.200.59.0/24 ip4:74.63.212.0/24 ip4:216.98.158.0/24 ip4:63.143.57.128/25 ip4:63.143.59.128/25 include:_spf.salesforce.com ip4:178.208.58.45/32 ip4:178.208.58.46/31 ip4:178.208.58.48/31 ip4:45.157.174.64/27 " "ip4:178.208.58.42/31 ip4:178.208.58.44/32 ip4:178.208.58.51/32 ip4:178.208.58.52/30 ip4:178.208.58.56/31 ip4:178.208.58.57 ~all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, AAAA 10m, MX 1h, NS 1h.
  • ✓ 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