leistert.nl

Checked 22 October 2026, 14:10 UTC · via 8.8.8.8
!Passed with warnings
24 passed 2 warnings 0 failed 3 info

Registration

info

.nl country-code

Found

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

Delegation

pass

ns1.holidaymedia.nl, ns2.holidaymedia.net, ns3.holidaymedia.nl, ns4.holidaymedia.eu

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.holidaymedia.nl, ns2.holidaymedia.net, ns3.holidaymedia.nl, ns4.holidaymedia.eu
NS in the zone
ns1.holidaymedia.nl, ns2.holidaymedia.net, ns3.holidaymedia.nl, ns4.holidaymedia.eu
NameserverAddressesNetwork (AS)Glue
ns1.holidaymedia.nl87.233.66.166 2001:9a8:7d:0:87:233:66:166AS15703 TrueServer-AS - TrueFullstaq B.V., NL AS15703 TrueServer-AS - TrueFullstaq B.V., NL87.233.66.166 2001:9a8:7d:0:87:233:66:166
ns2.holidaymedia.net88.80.191.82 2a01:7e00::f03c:92ff:fecd:29eeAS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG-
ns3.holidaymedia.nl172.104.251.146 2a01:7e01::2000:6aff:fe61:ca4aAS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG172.104.251.146 2a01:7e01::2000:6aff:fe61:ca4a
ns4.holidaymedia.eu172.233.47.106 2600:3c0e::f03c:95ff:fee5:bf44AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG AS63949 AKAMAI-LINODE-AP - Akamai Connected Cloud, SG-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns1.holidaymedia.nl, ns2.holidaymedia.net, ns3.holidaymedia.nl, ns4.holidaymedia.eu.
  • ✓ 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 4 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS15703 (TrueServer-AS - TrueFullstaq B.V., NL): 2 addresses; AS63949 (AKAMAI-LINODE-AP - Akamai Connected Cloud, SG): 6 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .eu, .net, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.holidaymedia.nl 87.233.66.166NOERROR, 12 ms, authoritativenoyes / yesrefusedDNS server
ns1.holidaymedia.nl 2001:9a8:7d:0:87:233:66:166NOERROR, 12 ms, authoritativenoyes / yesrefusedDNS server
ns2.holidaymedia.net 88.80.191.82NOERROR, 22 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.8.3
ns2.holidaymedia.net 2a01:7e00::f03c:92ff:fecd:29eeNOERROR, 22 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.8.3
ns3.holidaymedia.nl 172.104.251.146NOERROR, 3 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.8.3
ns3.holidaymedia.nl 2a01:7e01::2000:6aff:fe61:ca4aNOERROR, 4 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.8.3
ns4.holidaymedia.eu 172.233.47.106NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.8.3
ns4.holidaymedia.eu 2600:3c0e::f03c:95ff:fee5:bf44NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.8.3

Checks

  • ✓ All respond #14
    All 8 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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns2.holidaymedia.net: "PowerDNS Authoritative Server 4.8.3"; ns3.holidaymedia.nl: "PowerDNS Authoritative Server 4.8.3"; ns4.holidaymedia.eu: "PowerDNS Authoritative Server 4.8.3". Hide or replace the version string.
    #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

pass

serial 2026082701 · primary ns1.holidaymedia.nl

Found

Primary (MNAME)
ns1.holidaymedia.nl
Contact (RNAME)
hostmaster.holidaymedia.net
Serial
2026082701
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ns1.holidaymedia.nl (87.233.66.166)2026082701
ns1.holidaymedia.nl (2001:9a8:7d:0:87:233:66:166)2026082701
ns2.holidaymedia.net (88.80.191.82)2026082701
ns2.holidaymedia.net (2a01:7e00::f03c:92ff:fecd:29ee)2026082701
ns3.holidaymedia.nl (172.104.251.146)2026082701
ns3.holidaymedia.nl (2a01:7e01::2000:6aff:fe61:ca4a)2026082701
ns4.holidaymedia.eu (172.233.47.106)2026082701
ns4.holidaymedia.eu (2600:3c0e::f03c:95ff:fee5:bf44)2026082701

Checks

  • ✓ Serial 2026082701 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.holidaymedia.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@holidaymedia.net #25
    The SOA RNAME hostmaster.holidaymedia.net means hostmaster@holidaymedia.net.
  • ✓ Date-based serial #26
    The serial 2026082701 follows the YYYYMMDDnn convention (2026-08-27).

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

14 records at the apex

Found

Read from
87.233.66.166:53
TypeValueTTL
SOAns1.holidaymedia.nl. hostmaster.holidaymedia.net. 2026082701 14400 3600 604800 18003600
NSns2.holidaymedia.net.3600
NSns1.holidaymedia.nl.3600
NSns3.holidaymedia.nl.3600
NSns4.holidaymedia.eu.3600
A87.233.174.173600
AAAA2001:9a8:7d:0:87:233:174:173600
MX30 filter30.antispamcloud.com.3600
MX10 filter10.antispamcloud.com.3600
MX20 filter20.antispamcloud.com.3600
MX40 filter40.antispamcloud.com.3600
TXT"MS=ms98646412"3600
TXT"pinterest-site-verification=f55d3df3c8c24a3768d86a479ed9ddc5"3600
TXT"v=spf1 ip4:5.32.185.29 a:mail.leistert.nl exists:%{ir}._spf.msdp1.com " "include:_spf.mx-relay.com include:spf.amplixs.com include:spf.holidayagent.nl " "ip4:213.125.60.122 ip4:77.61.147.178 ip4:5.39.185.29 " "include:amazonses.com include:smtp.hroffice.eu include:_spf.axxerion.com " " ~all"3600

Checks

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