rodekruis.nl

Checked 21 October 2026, 21:25 UTC · via 8.8.8.8
iAll checks passed
25 passed 0 warnings 0 failed 8 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns13.kpn.net, ns3.kpn.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns13.kpn.net, ns3.kpn.net
NS in the zone
ns13.kpn.net, ns3.kpn.net
NameserverAddressesNetwork (AS)Glue
ns13.kpn.net213.75.63.34 2a02:a47f:ac:1::1353AS1136 KPN - KPN B.V., NL AS1136 KPN - KPN B.V., NL-
ns3.kpn.net194.151.228.42 2a02:a47f:ac:1::353AS1136 KPN - KPN B.V., NL AS1136 KPN - KPN B.V., NL-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns13.kpn.net, ns3.kpn.net.
    #6
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2a02:a47f:ac::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1136 (KPN - KPN B.V., NL): 4 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • i
    All nameserver names under .net
    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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns13.kpn.net 213.75.63.34NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns13.kpn.net 2a02:a47f:ac:1::1353NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns3.kpn.net 194.151.228.42NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns3.kpn.net 2a02:a47f:ac:1::353NOERROR, 11 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 4 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 2026101501 · primary ns3.kpn.net

Found

Primary (MNAME)
ns3.kpn.net
Contact (RNAME)
zonemaster.kpn.com
Serial
2026101501
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns13.kpn.net (213.75.63.34)2026101501
ns13.kpn.net (2a02:a47f:ac:1::1353)2026101501
ns3.kpn.net (194.151.228.42)2026101501
ns3.kpn.net (2a02:a47f:ac:1::353)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.kpn.net is one of the listed nameservers.
  • ✓ Contact zonemaster@kpn.com #25
    The SOA RNAME zonemaster.kpn.com means zonemaster@kpn.com.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
23833ECDSAP256SHA256 (13)SHA256 38497AA5267C7A8F…yes

DNSKEY in the zone

Key tagRoleAlgorithm
23833KSK (257)ECDSAP256SHA256 (13)
41367ZSK (256)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 23833 (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.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

18 records at the apex

Found

Read from
213.75.63.34:53
TypeValueTTL
SOAns3.kpn.net. zonemaster.kpn.com. 2026101501 28800 7200 604800 86400900
NSns3.kpn.net.900
NSns13.kpn.net.900
A87.238.163.90300
MX0 rodekruis-nl.mail.protection.outlook.com.3600
MX20 mxb.eu.mailgun.org.3600
MX10 mxa.eu.mailgun.org.3600
TXT"google-site-verification=X6atZqFOg2h95AvObbXnwY6OHrLm9pWsarYLw7fEpbA"3600
TXT"mandrill_verify.YRPCDHnw5A85n_8gPf8pRg"3600
TXT"coda-verification=57216666-c283-4ed7-88d4-bce56f873738"3600
TXT"canva-site-verification=SuIL5chPW9eGi1ZPdjrTFA"3600
TXT"brevo-code:b3541c5bd2ff158ba01091d0ff882202"3600
TXT"mentimeter-6007f585-00cd-4bf3-bb79-13567c26f471"3600
TXT"facebook-domain-verification=de2qkhj7c6v1r8m7znmc4ljdxfz8vy"3600
TXT"v=spf1 include:sendgrid.net include:spf.protection.outlook.com include:spf.mailjet.com ip4:185.136.64.128/27 ip4:185.136.65.128/27 include:mailgun.org ip4:31.7.7.114 ip6:2a03:9700:8000:7::15 ~all"3600
TXT"MS=ms98595711"3600
TXT"mandrill_verify.oXJQFdy-FGk4um7E_2iq1Q"3600
TXT"miro-verification=eee5cef976ea1863654988558e7ada03ae34eb18"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, NS 15m. The NS TTL at the parent is 1h and in the zone 15m; 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.
  • 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