Domain report: p1.nl

Registration

info

.nl country-code

Found

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

Lookup error: https://rdap.sidn.nl/domain/p1.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/p1.nl returned HTTP 429

#3

Delegation

info

ns1.caveo.nl, ns2.caveo.nl, ns3.caveo.nl

Found

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

Nameserver	Addresses	Network (AS)	Glue
ns1.caveo.nl	81.18.160.2	AS24642 NL-CAVEO - Caveo Internet BV, NL	81.18.160.2
ns2.caveo.nl	81.18.161.2 2001:1aa8:2:161::2	AS24642 NL-CAVEO - Caveo Internet BV, NL AS24642 NL-CAVEO - Caveo Internet BV, NL	81.18.161.2 2001:1aa8:2:161::2
ns3.caveo.nl	141.138.139.110 2a01:7c8:aaaa:164:5054:ff:fec8:3d37	AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL	141.138.139.110 2a01:7c8:aaaa:164:5054:ff:fec8:3d37

Checks

✓ 3 nameservers #6

Delegated to ns1.caveo.nl, ns2.caveo.nl, ns3.caveo.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 2 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS20857 (TRANSIP-AS - Signet B.V., NL): 2 addresses; AS24642 (NL-CAVEO - Caveo Internet BV, NL): 3 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
i

Partly IPv6

These nameservers have no IPv6 address: ns1.caveo.nl.

#13

Nameservers

info

5 of 5 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.caveo.nl 81.18.160.2	NOERROR, 10 ms, authoritative	no	yes / yes	refused	caveodns
ns2.caveo.nl 81.18.161.2	NOERROR, 10 ms, authoritative	no	yes / yes	refused	caveodns
ns2.caveo.nl 2001:1aa8:2:161::2	NOERROR, 10 ms, authoritative	no	yes / yes	refused	caveodns
ns3.caveo.nl 141.138.139.110	NOERROR, 12 ms, authoritative	no	yes / yes	refused	caveodns
ns3.caveo.nl 2a01:7c8:aaaa:164:5054:ff:fec8:3d37	NOERROR, 12 ms, authoritative	no	yes / yes	refused	caveodns

Checks

✓ All respond #14

All 5 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns1.caveo.nl: "caveodns"; ns2.caveo.nl: "caveodns"; ns3.caveo.nl: "caveodns".

#17
✓ 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 2026083110 · primary ns1.caveo.nl

Found

Primary (MNAME): ns1.caveo.nl
Contact (RNAME): hostmaster.caveo.nl
Serial: 2026083110
Refresh / retry: 28800 s / 7200 s
Expire: 1209600 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
ns1.caveo.nl (81.18.160.2)	2026083110
ns2.caveo.nl (81.18.161.2)	2026083110
ns2.caveo.nl (2001:1aa8:2:161::2)	2026083110
ns3.caveo.nl (141.138.139.110)	2026083110
ns3.caveo.nl (2a01:7c8:aaaa:164:5054:ff:fec8:3d37)	2026083110

Checks

✓ Serial 2026083110 everywhere #22

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

SOA refresh 8h, retry 2h, expire 14d, negative TTL 1d.
✓ Primary is a public nameserver #24

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

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

The serial 2026083110 follows the YYYYMMDDnn convention (2026-08-31).

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
6141	ECDSAP256SHA256 (13)	SHA256 9046B6ABC5A68FC1…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
6141	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 6141 (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

pass

16 records at the apex

Found

Read from: 81.18.160.2:53

Type	Value	TTL
SOA	ns1.caveo.nl. hostmaster.caveo.nl. 2026083110 28800 7200 1209600 86400	600
NS	ns1.caveo.nl.	600
NS	ns2.caveo.nl.	600
NS	ns3.caveo.nl.	600
A	95.215.189.72	300
AAAA	2a00:51c0:12:ff07::2367	300
MX	10 p1-nl.g-v1.mx.microsoft.	600
TXT	"google-site-verification=k3KpGPE_-OX16WCGGawNj49xDDxctMkbKFEMmWcanT0"	600
TXT	"apple-domain-verification=daMAKvE0Z9y76q80"	600
TXT	"v=spf1 mx ip4:212.113.85.66/32 ip4:5.200.1.0/24 ip4:212.113.85.64/32 ip4:188.202.0.146/32 ip4:81.18.165.16/28 ip4:213.125.22.194/32 ip4:193.173.21.117/32 include:spf1.p1.nl include:spf.protection.outlook.com ~all"	600
TXT	"brevo-code:736c8b3053331998f078575671a6c62c"	600
TXT	"MS=ms49063306"	600
TXT	"b4ece38692380c891f1c845663c515816d1c09cda2bbba881b5a6d2b34c0a4d3"	3600
CAA	0 issue "digicert.com"	600
CAA	0 issue "amazon.com"	600
CAA	0 issue "letsencrypt.org"	600

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 5m, MX 10m, NS 10m. The NS TTL at the parent is 1h and in the zone 10m; 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.
✓ CAA restricts issuance #35

Certificates may be issued by: digicert.com, amazon.com, letsencrypt.org.