Domain report: oasen.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

pass

ns03.2is.nl, ns04.2is.be, ns05.2is.nl

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns03.2is.nl, ns04.2is.be, ns05.2is.nl
NS in the zone: ns03.2is.nl, ns04.2is.be, ns05.2is.nl

Nameserver	Addresses	Network (AS)	Glue
ns03.2is.nl	62.221.202.199 2001:1460:3:4:1c00:b4ff:fe00:270a	AS48635 CLDIN-NL - Your Hosting B.V., NL AS48635 CLDIN-NL - Your Hosting B.V., NL	-
ns04.2is.be	62.221.197.54 2001:1460:2:2:1c00:4eff:fe00:2bf6	AS48635 CLDIN-NL - Your Hosting B.V., NL AS48635 CLDIN-NL - Your Hosting B.V., NL	-
ns05.2is.nl	194.107.180.31 2a0d:7980:2:100:881:27ff:fe7a:1de9	AS202053 UPCLOUD - UpCloud Ltd, FI AS202053 UPCLOUD - UpCloud Ltd, FI	-

Checks

✓ 3 nameservers #6

Delegated to ns03.2is.nl, ns04.2is.be, ns05.2is.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.
✓ 2 autonomous systems #11

The nameservers are spread over: AS202053 (UPCLOUD - UpCloud Ltd, FI): 2 addresses; AS48635 (CLDIN-NL - Your Hosting B.V., NL): 4 addresses.
✓ Nameserver names under 2 TLDs #12

Nameserver names use the TLDs .be, .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
ns03.2is.nl 62.221.202.199	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns03.2is.nl 2001:1460:3:4:1c00:b4ff:fe00:270a	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns04.2is.be 62.221.197.54	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-
ns04.2is.be 2001:1460:2:2:1c00:4eff:fe00:2bf6	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns05.2is.nl 194.107.180.31	NOERROR, 9 ms, authoritative	no	yes / yes	refused	-
ns05.2is.nl 2a0d:7980:2:100:881:27ff:fe7a:1de9	NOERROR, 10 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 2026102203 · primary ns03.2is.nl

Found

Primary (MNAME): ns03.2is.nl
Contact (RNAME): domain-admin.2is.nl
Serial: 2026102203
Refresh / retry: 86400 s / 7200 s
Expire: 86400 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns03.2is.nl (62.221.202.199)	2026102203
ns03.2is.nl (2001:1460:3:4:1c00:b4ff:fe00:270a)	2026102203
ns04.2is.be (62.221.197.54)	2026102203
ns04.2is.be (2001:1460:2:2:1c00:4eff:fe00:2bf6)	2026102203
ns05.2is.nl (194.107.180.31)	2026102203
ns05.2is.nl (2a0d:7980:2:100:881:27ff:fe7a:1de9)	2026102203

Checks

✓ Serial 2026102203 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 1d must be longer than refresh + retry. Current values: refresh 1d, retry 2h, expire 1d, negative TTL 1h.

#23
✓ Primary is a public nameserver #24

The primary nameserver ns03.2is.nl is one of the listed nameservers.
✓ Contact domain-admin@2is.nl #25

The SOA RNAME domain-admin.2is.nl means domain-admin@2is.nl.
✓ Date-based serial #26

The serial 2026102203 follows the YYYYMMDDnn convention (2026-10-22).

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
2968	ECDSAP256SHA256 (13)	SHA256 4C67A946CCC351AB…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
2968	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 2968 (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.
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

pass

16 records at the apex

Found

Read from: 62.221.202.199:53

Type	Value	TTL
SOA	ns03.2is.nl. domain-admin.2is.nl. 2026102203 86400 7200 86400 3600	7200
NS	ns05.2is.nl.	86400
NS	ns03.2is.nl.	86400
NS	ns04.2is.be.	86400
A	52.157.103.151	3600
MX	0 oasen-nl.mail.protection.outlook.com.	600
TXT	"v=spf1 include:_s00219887.autospf.email -all"	600
TXT	"Sendinblue-code:50a60f95c243495bb53e6ad482c0222b"	600
TXT	"DomainVerification=5WS0DJBPB6PP2ZEUOKKUBPA4EFNP9ZSPYBI9HC1VZZP9XN4D9YM0YF1LN5HQY94N"	600
TXT	"apple-domain-verification=bAcJMF56hpxTaBBM"	600
CAA	0 issue "networking4all.com"	600
CAA	0 issue "globalsign.com"	600
CAA	0 issue "kpn.com"	600
CAA	0 issue "digicert.com"	600
CAA	0 issue "sectigo.com"	600
CAA	0 issue "letsencrypt.org"	600

Checks

✓ TTLs within range #32

TTLs: A 1h, MX 10m, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; 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: networking4all.com, globalsign.com, kpn.com, digicert.com, sectigo.com, letsencrypt.org.