nh-hotels.nl

Checked 22 October 2026, 14:42 UTC · via 8.8.8.8
✗Problems found
19 passed 4 warnings 2 failed 4 info

Registration

info

.nl country-code

Found

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

Delegation

warn

a1-86.akam.net, a12-65.akam.net, a2-66.akam.net, a26-67.akam.net, a3-64.akam.net, a7-65.akam.net, nsjc8hos01.telefonica-data.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-86.akam.net, a12-65.akam.net, a2-66.akam.net, a26-67.akam.net, a3-64.akam.net, a7-65.akam.net, nsjc8hos01.telefonica-data.com
NS in the zone
a1-86.akam.net, a12-65.akam.net, a2-66.akam.net, a26-67.akam.net, a3-64.akam.net, a7-65.akam.net
NameserverAddressesNetwork (AS)Glue
a1-86.akam.net193.108.91.86 2600:1401:2::56AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a12-65.akam.net184.26.160.65 2600:1480:f000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a2-66.akam.net95.100.174.66 2600:1480:7000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a26-67.akam.net23.74.25.67 2600:1480:b800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-64.akam.net96.7.49.64 2600:1408:1c::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-65.akam.net23.61.199.65 2600:1406:32::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
nsjc8hos01.telefonica-data.com (parent only)213.0.43.37AS3352 Telefonica_de_EspaNa - TELEFONICA DE ESPANA S.A.U., ES-

Checks

  • ✓ 7 nameservers #6
    Delegated to a1-86.akam.net, a12-65.akam.net, a2-66.akam.net, a26-67.akam.net, a3-64.akam.net, a7-65.akam.net, nsjc8hos01.telefonica-data.com.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: nsjc8hos01.telefonica-data.com. a1-86.akam.net, a12-65.akam.net, a2-66.akam.net, a26-67.akam.net, a3-64.akam.net, a7-65.akam.net report NS a1-86.akam.net a12-65.akam.net a2-66.akam.net a26-67.akam.net a3-64.akam.net a7-65.akam.net.
    #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 7 IPv4 /24s and 6 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses; AS3352 (Telefonica_de_EspaNa - TELEFONICA DE ESPANA S.A.U., ES): 1 address.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .com, .net.
  • i
    Partly IPv6
    These nameservers have no IPv6 address: nsjc8hos01.telefonica-data.com.
    #13

Nameservers

fail

12 of 13 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-86.akam.net 193.108.91.86NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a1-86.akam.net 2600:1401:2::56NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a12-65.akam.net 184.26.160.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33
a12-65.akam.net 2600:1480:f000::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a2-66.akam.net 95.100.174.66NOERROR, 5 ms, authoritativenoyes / yesrefused48878.33
a2-66.akam.net 2600:1480:7000::42NOERROR, 3 ms, authoritativenoyes / yesrefused48878.32
a26-67.akam.net 23.74.25.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a26-67.akam.net 2600:1480:b800::43NOERROR, 4 ms, authoritativenoyes / yesrefused48878.29
a3-64.akam.net 96.7.49.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a3-64.akam.net 2600:1408:1c::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a7-65.akam.net 23.61.199.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.6
a7-65.akam.net 2600:1406:32::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
nsjc8hos01.telefonica-data.com 213.0.43.37REFUSED, 37 ms, NOT authoritativenono / yesrefused-

Checks

  • ✓ All respond #14
    All 13 nameserver addresses answered.
  • ✗
    Lame delegation
    These nameservers don't answer authoritatively for the zone, so resolvers ignore them: nsjc8hos01.telefonica-data.com (213.0.43.37): REFUSED, authoritative=false.
    #15
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-86.akam.net: "41824.9"; a1-86.akam.net: "41824.10"; a12-65.akam.net: "48878.33"; a12-65.akam.net: "48878.27"; a2-66.akam.net: "48878.33"; a2-66.akam.net: "48878.32"; a26-67.akam.net: "48878.31"; a26-67.akam.net: "48878.29"; a3-64.akam.net: "41824.10"; a7-65.akam.net: "41824.6"; a7-65.akam.net: "41824.11". Hide or replace the version string.
    #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: nsjc8hos01.telefonica-data.com (213.0.43.37): .
    #19
  • ✓ EDNS supported #20
    All nameservers support EDNS(0).
  • ✓ Public addresses #21
    All nameserver addresses are publicly routable.

SOA

pass

serial 1524818764 · primary a2-66.akam.net

Found

Primary (MNAME)
a2-66.akam.net
Contact (RNAME)
hostmaster.akamai.com
Serial
1524818764
Refresh / retry
43200 s / 7200 s
Expire
604800 s
Negative TTL
7200 s

Serial per nameserver

NameserverSerial
a1-86.akam.net (193.108.91.86)1524818764
a1-86.akam.net (2600:1401:2::56)1524818764
a12-65.akam.net (184.26.160.65)1524818764
a12-65.akam.net (2600:1480:f000::41)1524818764
a2-66.akam.net (95.100.174.66)1524818764
a2-66.akam.net (2600:1480:7000::42)1524818764
a26-67.akam.net (23.74.25.67)1524818764
a26-67.akam.net (2600:1480:b800::43)1524818764
a3-64.akam.net (96.7.49.64)1524818764
a3-64.akam.net (2600:1408:1c::40)1524818764
a7-65.akam.net (23.61.199.65)1524818764
a7-65.akam.net (2600:1406:32::41)1524818764

Checks

  • ✓ Serial 1524818764 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 7d, negative TTL 2h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a2-66.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@akamai.com #25
    The SOA RNAME hostmaster.akamai.com means hostmaster@akamai.com.
  • ✓ Timestamp serial #26
    The serial 1524818764 is a Unix timestamp (2018-04-27 08:46 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

warn

11 records at the apex

Found

Read from
193.108.91.86:53
TypeValueTTL
SOAa2-66.akam.net. hostmaster.akamai.com. 1524818764 43200 7200 604800 720086400
NSa7-65.akam.net.172800
NSa3-64.akam.net.172800
NSa12-65.akam.net.172800
NSa26-67.akam.net.172800
NSa1-86.akam.net.172800
NSa2-66.akam.net.172800
A104.82.100.18220
TXT"_uy5azjbogd2ghoa1kmwq40go060svjg"1800
TXT"gqmv2jvp75pdnn8mjbhgyf6txtg260gp"1800
TXT"google-site-verification=XTTRyB4RU-egCnqzRbE9GIuPNyBnbkV0KklUmN-KqeI"1800

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2d; 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