nyenrode.nl

Checked 21 October 2026, 21:23 UTC · via 8.8.8.8
✗Problems found
23 passed 2 warnings 1 failed 3 info

Registration

info

.nl country-code

Found

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

Delegation

warn

ns1.xaq.nl, ns2.xaq.nl, ns3.xaq.nl, ns4.xaq.nl, ns5.xaq.nl, ns6.xaq.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.xaq.nl, ns2.xaq.nl, ns3.xaq.nl, ns4.xaq.nl, ns5.xaq.nl, ns6.xaq.nl
NS in the zone
ns1.xaq.nl, ns2.xaq.nl, ns3.xaq.nl, ns4.xaq.nl, ns5.xaq.nl, ns6.xaq.nl
NameserverAddressesNetwork (AS)Glue
ns1.xaq.nl192.87.112.194AS1103 SURFNET-NL - SURF B.V., NL192.87.112.194
ns2.xaq.nl192.87.112.196AS1103 SURFNET-NL - SURF B.V., NL192.87.112.196
ns3.xaq.nl192.87.39.204AS1103 SURFNET-NL - SURF B.V., NL192.87.39.204
ns4.xaq.nl213.125.58.51AS33915 TNF-AS - Vodafone Libertel B.V., NL213.125.58.51
ns5.xaq.nl31.3.109.171AS197731 TUXIS - The Internet Engineering Group B.V., NL31.3.109.171
ns6.xaq.nl31.3.109.172AS197731 TUXIS - The Internet Engineering Group B.V., NL31.3.109.172

Checks

  • ✓ 6 nameservers #6
    Delegated to ns1.xaq.nl, ns2.xaq.nl, ns3.xaq.nl, ns4.xaq.nl, ns5.xaq.nl, ns6.xaq.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 4 IPv4 /24s and 0 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS1103 (SURFNET-NL - SURF B.V., NL): 3 addresses; AS197731 (TUXIS - The Internet Engineering Group B.V., NL): 2 addresses; AS33915 (TNF-AS - Vodafone Libertel B.V., NL): 1 address.
  • 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
  • !
    No IPv6
    None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13

Nameservers

fail

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.xaq.nl 192.87.112.194NOERROR, 10 ms, authoritativenono / yesrefused-
ns2.xaq.nl 192.87.112.196NOERROR, 10 ms, authoritativenono / yesrefused-
ns3.xaq.nl 192.87.39.204NOERROR, 10 ms, authoritativenono / yesrefused-
ns4.xaq.nl 213.125.58.51NOERROR, 27 ms, authoritativenono / yesrefused-
ns5.xaq.nl 31.3.109.171NOERROR, 11 ms, authoritativenono / yesrefused-
ns6.xaq.nl 31.3.109.172NOERROR, 11 ms, authoritativenono / yesrefused-

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.
  • ✓ 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.
  • ✗
    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.xaq.nl (192.87.112.194): dial tcp 192.87.112.194:53: i/o timeout; ns2.xaq.nl (192.87.112.196): dial tcp 192.87.112.196:53: i/o timeout; ns3.xaq.nl (192.87.39.204): dial tcp 192.87.39.204:53: i/o timeout; ns4.xaq.nl (213.125.58.51): dial tcp 213.125.58.51:53: i/o timeout; ns5.xaq.nl (31.3.109.171): dial tcp 31.3.109.171:53: i/o timeout; ns6.xaq.nl (31.3.109.172): dial tcp 31.3.109.172:53: i/o timeout.
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 1597696470 · primary ns1.xaq.nl

Found

Primary (MNAME)
ns1.xaq.nl
Contact (RNAME)
admin.nyenrode.nl
Serial
1597696470
Refresh / retry
3600 s / 900 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.xaq.nl (192.87.112.194)1597696470
ns2.xaq.nl (192.87.112.196)1597696470
ns3.xaq.nl (192.87.39.204)1597696470
ns4.xaq.nl (213.125.58.51)1597696470
ns5.xaq.nl (31.3.109.171)1597696470
ns6.xaq.nl (31.3.109.172)1597696470

Checks

  • ✓ Serial 1597696470 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 15m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.xaq.nl is one of the listed nameservers.
  • ✓ Contact admin@nyenrode.nl #25
    The SOA RNAME admin.nyenrode.nl means admin@nyenrode.nl.
  • ✓ Timestamp serial #26
    The serial 1597696470 is a Unix timestamp (2020-08-17 20:34 UTC).

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

pass

15 records at the apex

Found

Read from
192.87.112.194:53
TypeValueTTL
SOAns1.xaq.nl. admin.nyenrode.nl. 1597696470 3600 900 1209600 36003600
NSns6.xaq.nl.86400
NSns1.xaq.nl.86400
NSns2.xaq.nl.86400
NSns3.xaq.nl.86400
NSns4.xaq.nl.86400
NSns5.xaq.nl.86400
A149.210.159.2543600
MX10 nyenrode-nl.mail.protection.outlook.com.3600
TXT"d365mktkey=hbGunTeEV9EGWcly60KpkmCr1vguiqGhDBtQpToxshwx"300
TXT"v=spf1 ip4:192.87.112.224/29 ip4:192.87.39.200 include:_spf.transip.email include:spf.protection.outlook.com include:spf.fenetre.nl include:spf.interconnect.nl -all"300
CAA0 issue "comodoca.com"300
CAA0 issuewild "comodoca.com"300
CAA0 issue "letsencrypt.org"300
CAA0 issuewild "letsencrypt.org"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: comodoca.com, letsencrypt.org.