Domain report: tynaarlo.nl

Registration

info

.nl country-code

Found

TLD: .nl (country-code)
ICANN policies apply: no

Lookup error: https://rdap.sidn.nl/domain/tynaarlo.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/tynaarlo.nl returned HTTP 429

#3

Delegation

info

ns1.kpn.net, ns11.kpn.net

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns1.kpn.net, ns11.kpn.net
NS in the zone: ns1.kpn.net, ns11.kpn.net

Nameserver	Addresses	Network (AS)	Glue
ns1.kpn.net	194.151.228.10 2a02:a47f:ac:1::153	AS1136 KPN - KPN B.V., NL AS1136 KPN - KPN B.V., NL	-
ns11.kpn.net	213.75.63.33 2a02:a47f:ac:1::1153	AS1136 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: ns1.kpn.net, ns11.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

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.kpn.net 194.151.228.10	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns1.kpn.net 2a02:a47f:ac:1::153	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns11.kpn.net 213.75.63.33	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns11.kpn.net 2a02:a47f:ac:1::1153	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-

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 2026102201 · primary ns1.kpn.net

Found

Primary (MNAME): ns1.kpn.net
Contact (RNAME): zonemaster.kpn.com
Serial: 2026102201
Refresh / retry: 10800 s / 3600 s
Expire: 604800 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns1.kpn.net (194.151.228.10)	2026102201
ns1.kpn.net (2a02:a47f:ac:1::153)	2026102201
ns11.kpn.net (213.75.63.33)	2026102201
ns11.kpn.net (2a02:a47f:ac:1::1153)	2026102201

Checks

✓ Serial 2026102201 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns1.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 2026102201 follows the YYYYMMDDnn convention (2026-10-22).

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: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
47623	ECDSAP256SHA256 (13)	SHA256 3C50A892977F5B1A…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
36263	ZSK (256)	ECDSAP256SHA256 (13)
47623	KSK (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 47623 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-11-05 #30

The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
✓ NSEC3 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

18 records at the apex

Found

Read from: 194.151.228.10:53

Type	Value	TTL
SOA	ns1.kpn.net. zonemaster.kpn.com. 2026102201 10800 3600 604800 3600	3600
NS	ns11.kpn.net.	3600
NS	ns1.kpn.net.	3600
A	185.108.112.17	3600
AAAA	2a01:7c8:bb03:c:5054:ff:feeb:84a9	3600
MX	0 tynaarlo-nl.g-v1.mx.microsoft.	3600
TXT	"v=spf1 include:spf.protection.outlook.com include:_spf.zivver.com ip4:185.108.112.17 ip4:80.79.108.80 ip4:78.108.130.88 ip4:78.108.130.89 ip4:77.74.49.8 ip4:84.247.9.252 ip4:188.240.52.43 ip4:5.100.226.189 ip4:5.100.226.190 ip4:213.207.109.96/28 include:s" "pf.pinkprivate.cloud include:spf.eprov.nl include:_mailcluster.transip.email include:_spf.ezorg.nl include:spf1.mett.nl ~all"	3600
TXT	"qlnhvoCiM2aNwS9bkWGQJxTuIJqqqyEwcFQIKQSI9FbvlGKlC63JbwP95MHVWhOZ"	3600
TXT	"apple-domain-verification=5imcEvx4oy0mhMrN"	3600
TXT	"dct8xbV1US29hfDJri6PO30PBpFCX1JkTI1JUPOsSS8="	3600
TXT	"bw=0tjArCLyiufGU1nJu5cKwT7vBV2P2Q1WKEbS29fq0T5X"	3600
TXT	"O0RK9AFY6TBRNN0V08U63PYFZBCKHGIYZQGSD6GGMH8HHOO0RHTFC9XN6OJF9ODI"	3600
TXT	"DomainVerification=O0RK9AFY6TBRNN0V08U63PYFZBCKHGIYZQGSD6GGMH8HHOO0RHTFC9XN6OJF9ODI"	3600
TXT	"MS=79FD1F3A3F7886918D89ADC535F9E2EFA2F1680B"	3600
TXT	"kHXM2o3jfEmWnkpuZkLtilvlY2zqSf04yWyvz5EO39XPpz+SlWFeGe9qknPW7Sto9KkZKDximnQDwI2L/K3Apg=="	3600
TXT	"DomainVerification=HJZ0UWPJCQGSASVOGY7T8F7GFEJ4S9M3BZRK9DSIXV89CQ9V9G8GBYIE7IPP6ION"	3600
TXT	"XCOWg0sds7BzwMnMUsrM8ZtXZnMsCAzC75oF6+KUNdvhHOLJt9OBOwrxmA8CFmR/oCoURN2YWezqTugTmlZNeQ=="	3600
TXT	"JU3ZMJPpVFfYb5k4b7AzYwl7L4c2TFQZj9t39tUoZ2FM0GEUZ0x" "CUIBA4nIHdIYtja7ArsHRX/sqVIXQ2Vq9PQ=="	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