Domain report: landschapoverijssel.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

pass

nsauth1.introweb.nl, nsauth2.introweb.nl, nsauth3.introweb.net

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: nsauth1.introweb.nl, nsauth2.introweb.nl, nsauth3.introweb.net
NS in the zone: nsauth1.introweb.nl, nsauth2.introweb.nl, nsauth3.introweb.net

Nameserver	Addresses	Network (AS)	Glue
nsauth1.introweb.nl	80.65.96.48 2001:1690:1:a::a	AS20847 PREVIDER-AS - Previder B.V., NL AS20847 PREVIDER-AS - Previder B.V., NL	80.65.96.48 2001:1690:1:a::a
nsauth2.introweb.nl	86.105.160.91 2a0d:8600:1::5a	AS205185 DCSPINE - Eurofiber Cloud Infra B.V., NL AS205185 DCSPINE - Eurofiber Cloud Infra B.V., NL	86.105.160.91 2a0d:8600:1::5a
nsauth3.introweb.net	62.165.127.221 2001:1690:1:c::a	AS20847 PREVIDER-AS - Previder B.V., NL AS20847 PREVIDER-AS - Previder B.V., NL	-

Checks

✓ 3 nameservers #6

Delegated to nsauth1.introweb.nl, nsauth2.introweb.nl, nsauth3.introweb.net.
✓ 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: AS205185 (DCSPINE - Eurofiber Cloud Infra B.V., NL): 2 addresses; AS20847 (PREVIDER-AS - Previder B.V., NL): 4 addresses.
✓ Nameserver names under 2 TLDs #12

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

Every nameserver has an IPv6 address.

Nameservers

warn

6 of 6 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
nsauth1.introweb.nl 80.65.96.48	NOERROR, 11 ms, authoritative	no	yes / yes	refused	PowerDNS 3.11 for Workgroups
nsauth1.introweb.nl 2001:1690:1:a::a	NOERROR, 11 ms, authoritative	no	yes / yes	refused	PowerDNS 3.11 for Workgroups
nsauth2.introweb.nl 86.105.160.91	NOERROR, 13 ms, authoritative	no	yes / yes	refused	PowerDNS 3.11 for Workgroups
nsauth2.introweb.nl 2a0d:8600:1::5a	NOERROR, 13 ms, authoritative	no	yes / yes	refused	PowerDNS 3.11 for Workgroups
nsauth3.introweb.net 62.165.127.221	NOERROR, 11 ms, authoritative	no	yes / yes	refused	PowerDNS 3.11 for Workgroups
nsauth3.introweb.net 2001:1690:1:c::a	NOERROR, 11 ms, authoritative	no	yes / yes	refused	PowerDNS 3.11 for Workgroups

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.
!

Software version disclosed

These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: nsauth1.introweb.nl: "PowerDNS 3.11 for Workgroups"; nsauth2.introweb.nl: "PowerDNS 3.11 for Workgroups"; nsauth3.introweb.net: "PowerDNS 3.11 for Workgroups". Hide or replace the version string.

#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 2026092402 · primary nsauth1.introweb.nl

Found

Primary (MNAME): nsauth1.introweb.nl
Contact (RNAME): postmaster.introweb.nl
Serial: 2026092402
Refresh / retry: 28800 s / 7200 s
Expire: 604800 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
nsauth1.introweb.nl (80.65.96.48)	2026092402
nsauth1.introweb.nl (2001:1690:1:a::a)	2026092402
nsauth2.introweb.nl (86.105.160.91)	2026092402
nsauth2.introweb.nl (2a0d:8600:1::5a)	2026092402
nsauth3.introweb.net (62.165.127.221)	2026092402
nsauth3.introweb.net (2001:1690:1:c::a)	2026092402

Checks

✓ Serial 2026092402 everywhere #22

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

SOA refresh 8h, retry 2h, expire 7d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver nsauth1.introweb.nl is one of the listed nameservers.
✓ Contact postmaster@introweb.nl #25

The SOA RNAME postmaster.introweb.nl means postmaster@introweb.nl.
✓ Date-based serial #26

The serial 2026092402 follows the YYYYMMDDnn convention (2026-09-24).

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
814	ECDSAP256SHA256 (13)	SHA256 F4E86505257ADBEA…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
814	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 814 (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

info

15 records at the apex

Found

Read from: 80.65.96.48:53

Type	Value	TTL
SOA	nsauth1.introweb.nl. postmaster.introweb.nl. 2026092402 28800 7200 604800 86400	3600
NS	nsauth3.introweb.net.	3600
NS	nsauth1.introweb.nl.	3600
NS	nsauth2.introweb.nl.	3600
A	195.201.239.26	3600
MX	10 landschapoverijssel-nl.mail.protection.outlook.com.	3600
TXT	"37qd0fcgq5eoercskd0pq5dfji"	3600
TXT	"v=spf1 include:spf.mailjet.com include:spf.turbo-smtp.com include:spf.protection.outlook.com include:spf.landschapoverijssel.nl include:mailplus.nl include:spf.smtp2go.com include:spf.unit4services.com ip4:84.241.175.141 ip4:81.28.85.237 ip4:141.98.21.3 i" "p4:94.247.2.250 ip4:141.98.21.10 include:spf-westeu.emailsignatures365.com ~all"	3600
TXT	"6jlbdg80pcn5n93mcuvl8c0mpq"	3600
TXT	"mandrill_verify.XmpXa8YAJH5KC2s3nMwVFg"	3600
TXT	"google-site-verification=STEEp_W-2GAVY_d-LAH9EZWav9JAN-OFwH6r8Xn0DRI"	3600
TXT	"Foxit-domain-verification=426c3bbb128348850e0af7e9516df3a0"	3600
TXT	"google-site-verification=NXL-SDzeLgy0FmaRPszpmN7H7WXyxypfAbx6PgOnUNc"	3600
TXT	"apple-domain-verification=SxXntgDKmPLLdW2T"	3600
TXT	"apple-domain-verification=uUN1WMcBaUmL23gW"	3600

Checks

✓ TTLs within range #32

TTLs: A 1h, MX 1h, NS 1h.
✓ 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
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