valkhofmuseum.nl

Checked 22 October 2026, 16:52 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 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/valkhofmuseum.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/valkhofmuseum.nl returned HTTP 429
    #3

Delegation

warn

dns1.hosted.nl, dns2.hosted.nl, dns3.hosted.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
dns1.hosted.nl, dns2.hosted.nl, dns3.hosted.nl
NS in the zone
dns1.hosted.nl, dns2.hosted.nl, dns3.hosted.nl
NameserverAddressesNetwork (AS)Glue
dns1.hosted.nl91.230.244.50 2001:7b8:60c:1:4:47:10:1AS21221 InfoPact-AS - Infopact Netwerkdiensten B.V., NL AS12859 NL-BIT - BIT BV, NL91.230.244.50
dns2.hosted.nl185.214.150.35 2a0b:9cc0:150:35::1AS21221 InfoPact-AS - Infopact Netwerkdiensten B.V., NL AS21221 InfoPact-AS - Infopact Netwerkdiensten B.V., NL185.214.150.35 2a0b:9cc0:150:35::1
dns3.hosted.nl217.18.64.10 2a00:19c0:a064:10::1AS21221 InfoPact-AS - Infopact Netwerkdiensten B.V., NL AS21221 InfoPact-AS - Infopact Netwerkdiensten B.V., NL217.18.64.10 2a00:19c0:a064:10::1

Checks

  • ✓ 3 nameservers #6
    Delegated to dns1.hosted.nl, dns2.hosted.nl, dns3.hosted.nl.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: dns1.hosted.nl (glue 91.230.244.50, zone 91.230.244.50, 2001:7b8:60c:1:4:47:10:1). Update the glue at your registrar.
    #8
  • ✓ 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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12859 (NL-BIT - BIT BV, NL): 1 address; AS21221 (InfoPact-AS - Infopact Netwerkdiensten B.V., NL): 5 addresses.
  • 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

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
dns1.hosted.nl 91.230.244.50NOERROR, 12 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
dns1.hosted.nl 2001:7b8:60c:1:4:47:10:1NOERROR, 13 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
dns2.hosted.nl 185.214.150.35NOERROR, 12 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
dns2.hosted.nl 2a0b:9cc0:150:35::1NOERROR, 12 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
dns3.hosted.nl 217.18.64.10NOERROR, 14 ms, authoritativenoyes / yesrefusedServed by PowerDNS - https://www.powerdns.com/
dns3.hosted.nl 2a00:19c0:a064:10::1NOERROR, 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: dns1.hosted.nl: "Served by PowerDNS - https://www.powerdns.com/"; dns2.hosted.nl: "Served by PowerDNS - https://www.powerdns.com/"; dns3.hosted.nl: "Served by PowerDNS - https://www.powerdns.com/".
    #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 2026102000 · primary dns1.whitelabelsolutions.nl

Found

Primary (MNAME)
dns1.whitelabelsolutions.nl
Contact (RNAME)
hostmaster.whitelabelsolutions.nl
Serial
2026102000
Refresh / retry
3600 s / 3600 s
Expire
604800 s
Negative TTL
14400 s

Serial per nameserver

NameserverSerial
dns1.hosted.nl (91.230.244.50)2026102000
dns1.hosted.nl (2001:7b8:60c:1:4:47:10:1)2026102000
dns2.hosted.nl (185.214.150.35)2026102000
dns2.hosted.nl (2a0b:9cc0:150:35::1)2026102000
dns3.hosted.nl (217.18.64.10)2026102000
dns3.hosted.nl (2a00:19c0:a064:10::1)2026102000

Checks

  • ✓ Serial 2026102000 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 7d, negative TTL 4h.
    #23
  • i
    Hidden master
    The primary nameserver dns1.whitelabelsolutions.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@whitelabelsolutions.nl #25
    The SOA RNAME hostmaster.whitelabelsolutions.nl means hostmaster@whitelabelsolutions.nl.
  • ✓ Date-based serial #26
    The serial 2026102000 follows the YYYYMMDDnn convention (2026-10-20).

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

info

10 records at the apex

Found

Read from
91.230.244.50:53
TypeValueTTL
SOAdns1.whitelabelsolutions.nl. hostmaster.whitelabelsolutions.nl. 2026102000 3600 3600 604800 144001440
NSdns3.hosted.nl.1440
NSdns1.hosted.nl.1440
NSdns2.hosted.nl.1440
A212.95.50.1551440
MX0 valkhofmuseum-nl.mail.protection.outlook.com.1440
TXT"v=DMARC1; p=none; rua=mailto:support@hosted.nl; adkim=r; aspf=r;"1440
TXT"MS=ms46930513"1440
TXT"v=spf1 a ip4:185.185.246.160/28 ip4:46.165.236.26/24 ip4:141.138.168.0/24 ip4:141.138.169.0/24 ip4:5.39.185.0/24 include:_spf.we-invite.eu include:_spf.se.isp-net.nl include:spf.protection.outlook.com include:spf.perplex.hosting include:spf.eu.exclaimer.n" "et ~all"1440
TXT"_emq8d0g09pet4k29gqja8pepb86piw5"1440

Checks

  • ✓ TTLs within range #32
    TTLs: A 24m, MX 24m, NS 24m. The NS TTL at the parent is 1h and in the zone 24m; 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