Domain report: douane.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

info

ns2.belastingdienst.nl, ns3.belastingdienst.nl, ns4.belastingdienst.nl

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns2.belastingdienst.nl, ns3.belastingdienst.nl, ns4.belastingdienst.nl
NS in the zone: ns2.belastingdienst.nl, ns3.belastingdienst.nl, ns4.belastingdienst.nl

Nameserver	Addresses	Network (AS)	Glue
ns2.belastingdienst.nl	85.159.100.53 2a04:9a01:1002:2::53	AS24595 ASBKN - Belastingdienst, NL AS34663 ASBELASTINGDIENST - Belastingdienst, NL	85.159.100.53 2a04:9a01:1002:2::53
ns3.belastingdienst.nl	85.159.96.53 2a04:9a01:1002:3::53	AS24595 ASBKN - Belastingdienst, NL AS34663 ASBELASTINGDIENST - Belastingdienst, NL	85.159.96.53 2a04:9a01:1002:3::53
ns4.belastingdienst.nl	147.181.112.4	AS48037 SSO-ICT - SSC-ICT Haaglanden, NL	147.181.112.4

Checks

✓ 3 nameservers #6

Delegated to ns2.belastingdienst.nl, ns3.belastingdienst.nl, ns4.belastingdienst.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.
i

One address family in one network

all IPv6 addresses are in 2a04:9a01:1002::/48, while the other address family is spread over several networks.

#10
✓ 3 autonomous systems #11

The nameservers are spread over: AS24595 (ASBKN - Belastingdienst, NL): 2 addresses; AS34663 (ASBELASTINGDIENST - Belastingdienst, NL): 2 addresses; AS48037 (SSO-ICT - SSC-ICT Haaglanden, NL): 1 address.
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
i

Partly IPv6

These nameservers have no IPv6 address: ns4.belastingdienst.nl.

#13

Nameservers

fail

3 of 5 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns2.belastingdienst.nl 85.159.100.53	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns2.belastingdienst.nl 2a04:9a01:1002:2::53	no response	no	no / no	-	-
ns3.belastingdienst.nl 85.159.96.53	NOERROR, 14 ms, authoritative	no	yes / yes	refused	-
ns3.belastingdienst.nl 2a04:9a01:1002:3::53	no response	no	no / no	-	-
ns4.belastingdienst.nl 147.181.112.4	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-

Checks

✗

Nameservers not responding

These addresses did not answer, so resolvers waste time on timeouts: ns2.belastingdienst.nl (2a04:9a01:1002:2::53): read udp [2a01:4f8:1c1c:eebf::1]:59829->[2a04:9a01:1002:2::53]:53: i/o timeout; ns3.belastingdienst.nl (2a04:9a01:1002:3::53): read udp [2a01:4f8:1c1c:eebf::1]:60028->[2a04:9a01:1002:3::53]:53: i/o timeout.

#14
✓ 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 2004140084 · primary ns2.belastingdienst.nl

Found

Primary (MNAME): ns2.belastingdienst.nl
Contact (RNAME): dnsadmin.belastingdienst.nl
Serial: 2004140084
Refresh / retry: 14400 s / 1440 s
Expire: 604800 s
Negative TTL: 900 s

Serial per nameserver

Nameserver	Serial
ns2.belastingdienst.nl (85.159.100.53)	2004140084
ns3.belastingdienst.nl (85.159.96.53)	2004140084
ns4.belastingdienst.nl (147.181.112.4)	2004140084

Checks

✓ Serial 2004140084 everywhere #22

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

SOA refresh 4h, retry 24m, expire 7d, negative TTL 15m.
✓ Primary is a public nameserver #24

The primary nameserver ns2.belastingdienst.nl is one of the listed nameservers.
✓ Contact dnsadmin@belastingdienst.nl #25

The SOA RNAME dnsadmin.belastingdienst.nl means dnsadmin@belastingdienst.nl.
✓ Timestamp serial #26

The serial 2004140084 is a Unix timestamp (2033-07-05 01:34 UTC).

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: 25 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
32351	RSASHA256 (8)	SHA256 4C8D77F905732CF1…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
17181	ZSK (256)	RSASHA256 (8)
32351	KSK (257)	RSASHA256 (8)
61024	KSK (257)	RSASHA256 (8)
47296	ZSK (256)	RSASHA256 (8)
5188	ZSK (256)	RSASHA256 (8)

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 32351 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Short-lived signatures (online signing) #30

Signatures are valid for 96h0m0s and created on demand; the current one was made at 2026-10-21 19:58 UTC and expires at 2026-10-25 20:12 UTC.
✓ NSEC3 as recommended #31

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

Records

info

20 records at the apex

Found

Read from: 85.159.100.53:53

Type	Value	TTL
SOA	ns2.belastingdienst.nl. dnsadmin.belastingdienst.nl. 2004140084 14400 1440 604800 900	14400
NS	ns3.belastingdienst.nl.	14400
NS	ns2.belastingdienst.nl.	14400
NS	ns4.belastingdienst.nl.	14400
A	85.159.98.34	300
AAAA	2a04:9a01:1002::34	300
MX	10 smtp2.belastingdienst.nl.	14400
MX	10 smtp1.belastingdienst.nl.	14400
TXT	"cisco-ci-domain-verification=13ed1aa4c319a4041de30b3957ffe4d962c22a3473c5ef6ca6c5a8c2082a1e53"	60
TXT	"8F57-F46B-A3E9-D206-8B9C-CEAE-0802-4F93"	60
TXT	"mandrill_verify.Vdzp-GzN1LaZJ7kleqMPbQ"	60
TXT	"apple-domain-verification=QaVJK9OFcGJtgOSy"	60
TXT	"figma-domain-verification=0d3aff64020f06b80d89150f70daf07878d4b84cc635543fd55a65dbdbb23085-1768904315"	60
TXT	"v=spf1 redirect=_spf.belastingdienst.nl"	60
TXT	"MS=ms70334526"	60
TXT	"cisco-ci-domain-verification=5054bf9f46347a618379f016f4676b08bce938d25a25748ccbe3e1d8ce13c514"	60
CAA	0 issue "digicert.com"	300
CAA	0 iodef "mailto:certificatenloket@belastingdienst.nl"	300
CAA	0 issue "apple.com"	300
CAA	0 issue "sectigo.com"	300

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 5m, MX 4h, NS 4h. The NS TTL at the parent is 1h and in the zone 4h; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
i

Wildcard record

A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.

#34
✓ CAA restricts issuance #35

Certificates may be issued by: digicert.com, apple.com, sectigo.com.