apeldoorn.nl

Checked 21 October 2026, 20:45 UTC · via 8.8.8.8
iAll checks passed
30 passed 0 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/apeldoorn.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/apeldoorn.nl returned HTTP 429
    #3

Delegation

info

ns1.apeldoorn.shockmedia.nl, ns2.apeldoorn.shockmedia.nl, ns3.apeldoorn.shockmedia.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.apeldoorn.shockmedia.nl, ns2.apeldoorn.shockmedia.nl, ns3.apeldoorn.shockmedia.nl
NS in the zone
ns1.apeldoorn.shockmedia.nl, ns2.apeldoorn.shockmedia.nl, ns3.apeldoorn.shockmedia.nl
NameserverAddressesNetwork (AS)Glue
ns1.apeldoorn.shockmedia.nl31.7.0.53 2a03:9700::53AS20847 PREVIDER-AS - Previder B.V., NL AS20847 PREVIDER-AS - Previder B.V., NL-
ns2.apeldoorn.shockmedia.nl45.63.42.250 2001:19f0:5001:3169:5400:2ff:fe53:7a44AS20473 AS-VULTR - The Constant Company, LLC, US AS20473 AS-VULTR - The Constant Company, LLC, US-
ns3.apeldoorn.shockmedia.nl3.74.8.24 2a05:d014:133d:1200:bfd:ccd2:7453:bd9bAS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.apeldoorn.shockmedia.nl, ns2.apeldoorn.shockmedia.nl, ns3.apeldoorn.shockmedia.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 3 IPv4 /24s and 3 IPv6 /48s.
  • ✓ 3 autonomous systems #11
    The nameservers are spread over: AS16509 (AMAZON-02 - Amazon.com, Inc., US): 2 addresses; AS20473 (AS-VULTR - The Constant Company, LLC, US): 2 addresses; AS20847 (PREVIDER-AS - Previder B.V., NL): 2 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

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.apeldoorn.shockmedia.nl 31.7.0.53NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns1.apeldoorn.shockmedia.nl 2a03:9700::53NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns2.apeldoorn.shockmedia.nl 45.63.42.250NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns2.apeldoorn.shockmedia.nl 2001:19f0:5001:3169:5400:2ff:fe53:7a44NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns3.apeldoorn.shockmedia.nl 3.74.8.24NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns3.apeldoorn.shockmedia.nl 2a05:d014:133d:1200:bfd:ccd2:7453:bd9bNOERROR, 9 ms, authoritativenoyes / 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.
  • ✓ 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 2026051351 · primary ns1.apeldoorn.shockmedia.nl

Found

Primary (MNAME)
ns1.apeldoorn.shockmedia.nl
Contact (RNAME)
hostmaster.shockmedia.nl
Serial
2026051351
Refresh / retry
10800 s / 1800 s
Expire
1209600 s
Negative TTL
43200 s

Serial per nameserver

NameserverSerial
ns1.apeldoorn.shockmedia.nl (31.7.0.53)2026051351
ns1.apeldoorn.shockmedia.nl (2a03:9700::53)2026051351
ns2.apeldoorn.shockmedia.nl (45.63.42.250)2026051351
ns2.apeldoorn.shockmedia.nl (2001:19f0:5001:3169:5400:2ff:fe53:7a44)2026051351
ns3.apeldoorn.shockmedia.nl (3.74.8.24)2026051351
ns3.apeldoorn.shockmedia.nl (2a05:d014:133d:1200:bfd:ccd2:7453:bd9b)2026051351

Checks

  • ✓ Serial 2026051351 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 30m, expire 14d, negative TTL 12h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.apeldoorn.shockmedia.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@shockmedia.nl #25
    The SOA RNAME hostmaster.shockmedia.nl means hostmaster@shockmedia.nl.
  • ✓ Date-based serial #26
    The serial 2026051351 follows the YYYYMMDDnn convention (2026-05-13).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
4249ECDSAP256SHA256 (13)SHA256 C309B43AF97A3DBF…yes

DNSKEY in the zone

Key tagRoleAlgorithm
4249KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 4249 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

26 records at the apex

Found

Read from
31.7.0.53:53
TypeValueTTL
SOAns1.apeldoorn.shockmedia.nl. hostmaster.shockmedia.nl. 2026051351 10800 1800 1209600 432003600
NSns2.apeldoorn.shockmedia.nl.3600
NSns3.apeldoorn.shockmedia.nl.3600
NSns1.apeldoorn.shockmedia.nl.3600
A80.113.169.167300
AAAA2a07:3500:1240:1000::443600
MX10 fm.apeldoorn.nl.300
TXT"b9e313581de82c7db19044c8443091afe4d5d412022388d9eccb265b99972c80"300
TXT"_71pz5fjbh94baav7nyo437tk205b72e"300
TXT"infoblox-domain-mastery=123fe5f7289ff5e2ad04b396ec2af594beb95b01985383365a5b177aca86c6d0e9"300
TXT"501516312bee22d2525feaab274af30cf29e486921a4945066ce1e8b959fa167"300
TXT"762415aac9ddb595f99d8988280b8db7e4c72c5a8773223cce7a0147b6ee8ebf"300
TXT"DomainVerification=QYCLKVBPB7S2MQHZ4D7OI8BMV9EY9805GIZ22X4J4MKM4GNO37IMCJE2Y7XQLGBV"300
TXT"MS=ms32691917"300
TXT"ff999b04ddb78d8f7034cdddc418256aa0cddd34191b2c13e3a6470258c6985f"300
TXT"v=spf1 mx ip4:85.10.133.97 include:spf.mailjet.com include:spf.pinkprivate.cloud include:_spf.ezorg.nl -all"300
TXT"DomainVerification=0YH8HGL9BG3SEEI0B94IXT0A7VGEDDH1GUM82EI4S8LXN4FJ4QZFWXODI5WU9F54"300
TXT"8vv16hzg76qppgrp7f70l60tt56jmdmk"300
TXT"xYoc+ikCjFV79PFxuikQoaczZqpOgLpX6L6Btbo5YGqgdQPGfEZHE330OEu29e+uUSsZz22PoirPz05m+J0kBw=="300
CAA0 issue "sectigo.com"3600
CAA0 issuewild "digicert.com"3600
CAA0 iodef "mailto:soc@apeldoorn.nl"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "kpn.com"3600
CAA0 issue "digicert.com"3600
CAA0 issue "thawte.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 10m, 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: sectigo.com, digicert.com, letsencrypt.org, kpn.com, thawte.com.