vangoghmuseum.nl

Checked 21 October 2026, 21:26 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 0 failed 6 info

Registration

info

.nl country-code

Found

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

Delegation

info

anycast-eu.dns.sqr.nl, unicast-eu.dns.sqr.domains

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
anycast-eu.dns.sqr.nl, unicast-eu.dns.sqr.domains
NS in the zone
anycast-eu.dns.sqr.nl, unicast-eu.dns.sqr.domains
NameserverAddressesNetwork (AS)Glue
anycast-eu.dns.sqr.nl194.58.196.57 2a01:3f1:857::53AS8674 NETNOD-IX - Netnod AB, SE AS8674 NETNOD-IX - Netnod AB, SE-
unicast-eu.dns.sqr.domains185.42.137.109 2a01:3f0:400::57AS8674 NETNOD-IX - Netnod AB, SE AS8674 NETNOD-IX - Netnod AB, SE-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: anycast-eu.dns.sqr.nl, unicast-eu.dns.sqr.domains.
    #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 (AS8674 (NETNOD-IX - Netnod AB, SE): 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
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .domains, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
anycast-eu.dns.sqr.nl 194.58.196.57NOERROR, 9 ms, authoritativenoyes / yesrefused-
anycast-eu.dns.sqr.nl 2a01:3f1:857::53NOERROR, 9 ms, authoritativenoyes / yesrefused-
unicast-eu.dns.sqr.domains 185.42.137.109NOERROR, 25 ms, authoritativenoyes / yesrefused-
unicast-eu.dns.sqr.domains 2a01:3f0:400::57NOERROR, 25 ms, authoritativenoyes / yesrefused-

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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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

info

serial 2026101501 · primary ns1.sqr.nl

Found

Primary (MNAME)
ns1.sqr.nl
Contact (RNAME)
hostmaster.vangoghmuseum.nl
Serial
2026101501
Refresh / retry
16384 s / 2048 s
Expire
1048576 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
anycast-eu.dns.sqr.nl (194.58.196.57)2026101501
anycast-eu.dns.sqr.nl (2a01:3f1:857::53)2026101501
unicast-eu.dns.sqr.domains (185.42.137.109)2026101501
unicast-eu.dns.sqr.domains (2a01:3f0:400::57)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h33m4s, retry 34m8s, expire 291h16m16s, negative TTL 5m.
  • i
    Hidden master
    The primary nameserver ns1.sqr.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 hostmaster@vangoghmuseum.nl #25
    The SOA RNAME hostmaster.vangoghmuseum.nl means hostmaster@vangoghmuseum.nl.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

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

15 records at the apex

Found

Read from
194.58.196.57:53
TypeValueTTL
SOAns1.sqr.nl. hostmaster.vangoghmuseum.nl. 2026101501 16384 2048 1048576 300900
NSanycast-eu.dns.sqr.nl.300
NSunicast-eu.dns.sqr.domains.300
A104.40.179.243300
MX0 vangoghmuseum-nl.mail.protection.outlook.com.60
TXT"apple-domain-verification=A0pHp4g1D3tM9Jom"3600
TXT"ps=42c50424b9feb964998ac650f66d6f78144d8017"3600
TXT"docusign=65718c27-7295-440b-8d27-7666b89488f2"3600
TXT"canva-site-verification=rSvUsY9X8JoyhwE452gBuw"3600
TXT"autodesk-domain-verification=MVKWWfG05WmwPvX5m3Dk"3600
TXT"facebook-domain-verification=c7jbjqy5t1g7srohb91x1m2a0ov75h"3600
TXT"google-site-verification=dGtnE0dG4drKgKxTo9Dvm9m2Ymno-9ZXt_ixB6DcGNw"3600
TXT"09lLpSKMUNqEg6Wr9EoBKKzuzmP5h2d99aien3wd80si+3NGwg4QQZ81vm4ea5vGCg5POkfsw6MZe3IYjfGdNA=="3600
TXT"fireflies-verification=01KJSSGXHSPNPF8FJJPT73C5ZQ.ffverify.fireflies.ai-request-verification=2026-03-03T12:07:19Z"3600
TXT"v=spf1 mx:vangoghmuseum.nl ip4:65.123.29.0/24 ip4:185.27.16.86 ip4:144.178.121.151 include:spf.protection.outlook.com include:spf.afas.online include:spf.transsmart.com include:procurios.cloud include:mailgun.org ip4:167.89.90.135 ip4:168.245.94.198 ip4:1" "68.245.67.111 ip4:104.40.229.156 ip4:52.169.0.179 ip4:20.50.220.144/28 ip4:40.127.253.48/28 ip4:144.178.121.151 ip4:185.27.16.86 -all"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 5m; resolvers may use either.
    #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