bart.nl

Checked 21 October 2026, 20:45 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 5 info

Registration

info

.nl country-code · Claranet Benelux B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Claranet Benelux B.V.
Registered
13 December 1994
Last changed
19 August 2026
Status
active
Registry nameservers
ns0.claranet.com, ns1.clara.net, ns2.claranet.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

warn

ns0.claranet.com, ns1.clara.net, ns2.claranet.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns0.claranet.com, ns1.clara.net, ns2.claranet.com
NS in the zone
ns1.vianetworks.nl, ns2.vianetworks.nl
NameserverAddressesNetwork (AS)Glue
ns0.claranet.com (parent only)185.77.72.50 2001:67c:1088::50AS8426 CLARANET-AS - Claranet Limited, GB AS8426 CLARANET-AS - Claranet Limited, GB-
ns1.clara.net (parent only)185.77.72.11 2001:67c:1088::11AS8426 CLARANET-AS - Claranet Limited, GB AS8426 CLARANET-AS - Claranet Limited, GB-
ns1.vianetworks.nl (zone only)185.77.72.11 2001:67c:1088::11AS8426 CLARANET-AS - Claranet Limited, GB AS8426 CLARANET-AS - Claranet Limited, GB-
ns2.claranet.com (parent only)195.245.201.50 2001:a88:0:fffa::50AS8426 CLARANET-AS - Claranet Limited, GB AS8426 CLARANET-AS - Claranet Limited, GB-
ns2.vianetworks.nl (zone only)195.245.201.50 2001:a88:0:fffa::50AS8426 CLARANET-AS - Claranet Limited, GB AS8426 CLARANET-AS - Claranet Limited, GB-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns0.claranet.com, ns1.clara.net, ns2.claranet.com.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns0.claranet.com, ns1.clara.net, ns2.claranet.com; only in the zone: ns1.vianetworks.nl, ns2.vianetworks.nl. ns0.claranet.com, ns1.clara.net, ns1.vianetworks.nl, ns2.claranet.com, ns2.vianetworks.nl report NS ns1.vianetworks.nl ns2.vianetworks.nl.
    #7
  • ✓ 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 (AS8426 (CLARANET-AS - Claranet Limited, GB): 10 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 .com, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns0.claranet.com 185.77.72.50NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns0.claranet.com 2001:67c:1088::50NOERROR, 7 ms, authoritativenoyes / yesrefused-
ns1.clara.net 185.77.72.11NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1.clara.net 2001:67c:1088::11NOERROR, 6 ms, authoritativenoyes / yesrefused-
ns1.vianetworks.nl 185.77.72.11NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns1.vianetworks.nl 2001:67c:1088::11NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns2.claranet.com 195.245.201.50NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns2.claranet.com 2001:a88:0:fffa::50NOERROR, 5 ms, authoritativenoyes / yesrefused-
ns2.vianetworks.nl 195.245.201.50NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns2.vianetworks.nl 2001:a88:0:fffa::50NOERROR, 3 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 10 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

pass

serial 2020030300 · primary ns1.vianetworks.nl

Found

Primary (MNAME)
ns1.vianetworks.nl
Contact (RNAME)
netmaster.vianetworks.nl
Serial
2020030300
Refresh / retry
14400 s / 1800 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns0.claranet.com (185.77.72.50)2020030300
ns0.claranet.com (2001:67c:1088::50)2020030300
ns1.clara.net (185.77.72.11)2020030300
ns1.clara.net (2001:67c:1088::11)2020030300
ns1.vianetworks.nl (185.77.72.11)2020030300
ns1.vianetworks.nl (2001:67c:1088::11)2020030300
ns2.claranet.com (195.245.201.50)2020030300
ns2.claranet.com (2001:a88:0:fffa::50)2020030300
ns2.vianetworks.nl (195.245.201.50)2020030300
ns2.vianetworks.nl (2001:a88:0:fffa::50)2020030300

Checks

  • ✓ Serial 2020030300 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.vianetworks.nl is one of the listed nameservers.
  • ✓ Contact netmaster@vianetworks.nl #25
    The SOA RNAME netmaster.vianetworks.nl means netmaster@vianetworks.nl.
  • ✓ Date-based serial #26
    The serial 2020030300 follows the YYYYMMDDnn convention (2020-03-03).

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

6 records at the apex

Found

Read from
185.77.72.50:53
TypeValueTTL
SOAns1.vianetworks.nl. netmaster.vianetworks.nl. 2020030300 14400 1800 1209600 864003600
NSns2.vianetworks.nl.3600
NSns1.vianetworks.nl.3600
A194.158.170.2503600
MX100 mx-vh.nl.clara.net.300
TXT"v=spf1 include:spf-claramail.mail.eu.clara.net ~all"900

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 5m, 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