Domain report: jaarkalender.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

pass

ns1.spothost.eu, ns2.spot.host, ns3.spothost.nl

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns1.spothost.eu, ns2.spot.host, ns3.spothost.nl
NS in the zone: ns1.spothost.eu, ns2.spot.host, ns3.spothost.nl

Nameserver	Addresses	Network (AS)	Glue
ns1.spothost.eu	185.58.57.1 2a01:310:8312:1046:185:58:57:1	AS8312 ZYLON-AS - Bas Smit trading as Zylon, NL AS8312 ZYLON-AS - Bas Smit trading as Zylon, NL	-
ns2.spot.host	94.237.90.65 2a04:3542:1000:910:e0c3:50ff:feec:7ce7	AS202053 UPCLOUD - UpCloud Ltd, FI AS202053	-
ns3.spothost.nl	157.97.218.242 2a01:8580:2702:0:1009:0:242:1	AS198089 AS198089	-

Checks

✓ 3 nameservers #6

Delegated to ns1.spothost.eu, ns2.spot.host, ns3.spothost.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: AS198089: 2 addresses; AS202053 (UPCLOUD - UpCloud Ltd, FI): 2 addresses; AS8312 (ZYLON-AS - Bas Smit trading as Zylon, NL): 2 addresses.
✓ Nameserver names under 3 TLDs #12

Nameserver names use the TLDs .eu, .host, .nl.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.spothost.eu 185.58.57.1	NOERROR, 14 ms, authoritative	no	yes / yes	refused	-
ns1.spothost.eu 2a01:310:8312:1046:185:58:57:1	NOERROR, 14 ms, authoritative	no	yes / yes	refused	-
ns2.spot.host 94.237.90.65	NOERROR, 4 ms, authoritative	no	yes / yes	refused	-
ns2.spot.host 2a04:3542:1000:910:e0c3:50ff:feec:7ce7	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns3.spothost.nl 157.97.218.242	NOERROR, 17 ms, authoritative	no	yes / yes	refused	-
ns3.spothost.nl 2a01:8580:2702:0:1009:0:242:1	NOERROR, 15 ms, authoritative	no	yes / yes	refused	-

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

warn

serial 2026100101 · primary ns1.spothost.eu

Found

Primary (MNAME): ns1.spothost.eu
Contact (RNAME): hostmaster.jaarkalender.nl
Serial: 2026100101
Refresh / retry: 120 s / 3600 s
Expire: 1209600 s
Negative TTL: 1800 s

Serial per nameserver

Nameserver	Serial
ns1.spothost.eu (185.58.57.1)	2026100101
ns1.spothost.eu (2a01:310:8312:1046:185:58:57:1)	2026100101
ns2.spot.host (94.237.90.65)	2026100101
ns2.spot.host (2a04:3542:1000:910:e0c3:50ff:feec:7ce7)	2026100101
ns3.spothost.nl (157.97.218.242)	2026100101
ns3.spothost.nl (2a01:8580:2702:0:1009:0:242:1)	2026100101

Checks

✓ Serial 2026100101 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

refresh 2m is outside 20m–1d; retry 1h should be shorter than refresh 2m. Current values: refresh 2m, retry 1h, expire 14d, negative TTL 30m.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns1.spothost.eu is one of the listed nameservers.
✓ Contact hostmaster@jaarkalender.nl #25

The SOA RNAME hostmaster.jaarkalender.nl means hostmaster@jaarkalender.nl.
✓ Date-based serial #26

The serial 2026100101 follows the YYYYMMDDnn convention (2026-10-01).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
14292	ECDSAP256SHA256 (13)	SHA256 42F853D7159F4B69…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
14292	KSK (257)	ECDSAP256SHA256 (13)
44909	ZSK (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 14292 (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 01:20 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

warn

10 records at the apex

Found

Read from: 185.58.57.1:53

Type	Value	TTL
SOA	ns1.spothost.eu. hostmaster.jaarkalender.nl. 2026100101 120 3600 1209600 1800	120
NS	ns3.spothost.nl.	120
NS	ns2.spot.host.	120
NS	ns1.spothost.eu.	120
A	185.58.56.153	120
AAAA	2a01:310:8312:1046:185:58:56:153	120
MX	10 mail.jaarkalender.nl.	120
TXT	"v=spf1 a mx ip4:185.58.56.153 ip6:2a01:310:8312:1046:185:58:56:153 ~all"	120
TXT	"google-site-verification=hOckaCYwNekqkp9cq7JEcnEYOkweTtx64ZCxNHZNZB8"	120
TXT	"ezoic-domain-verification=FWKltPkKIfjLLlMHMwIn05rmUTHdGZ"	120

Checks

!

Very low TTLs

These records have a TTL below 5m, causing extra queries and slower lookups: A (2m), AAAA (2m), MX (2m), NS (2m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2m; resolvers may use either.

#32
✓ 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