Domain report: tolhuistuin.nl

Registration

info

.nl country-code

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

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/tolhuistuin.nl returned HTTP 429

#3

warn

ns5.mr-wolf.nl, ns6.mr-wolf.nl

Nameserver	Addresses	Network (AS)	Glue
ns5.mr-wolf.nl	85.214.158.61	AS6724 STRATO - Strato GmbH, DE	85.214.158.61
ns6.mr-wolf.nl	37.97.214.68	AS20857 TRANSIP-AS - Signet B.V., NL	37.97.214.68

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns5.mr-wolf.nl, ns6.mr-wolf.nl.

#6
✓ 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 2 IPv4 /24s and 0 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS20857 (TRANSIP-AS - Signet B.V., NL): 1 address; AS6724 (STRATO - Strato GmbH, DE): 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
!

No IPv6

None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.

#13

fail

2 of 2 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns5.mr-wolf.nl 85.214.158.61	NOERROR, 13 ms, authoritative	no	yes / yes	ALLOWED (45 records)	9.18.30-0ubuntu0.20.04.2+tuxcare.els6-Ubuntu
ns6.mr-wolf.nl 37.97.214.68	NOERROR, 11 ms, authoritative	no	yes / yes	refused	none

✓ All respond #14

All 2 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: ns5.mr-wolf.nl: "9.18.30-0ubuntu0.20.04.2+tuxcare.els6-Ubuntu". Hide or replace the version string.

#17
✗

Zone transfer allowed

These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns5.mr-wolf.nl (85.214.158.61): 45 records. Restrict zone transfers to your secondary servers.

#18
✓ 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.

pass

serial 2026071503 · primary ns6.mr-wolf.nl

Nameserver	Serial
ns5.mr-wolf.nl (85.214.158.61)	2026071503
ns6.mr-wolf.nl (37.97.214.68)	2026071503

✓ Serial 2026071503 everywhere #22

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

SOA refresh 1h, retry 30m, expire 14d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns6.mr-wolf.nl is one of the listed nameservers.
✓ Contact marcel@51north.nl #25

The SOA RNAME marcel.51north.nl means marcel@51north.nl.
✓ Date-based serial #26

The serial 2026071503 follows the YYYYMMDDnn convention (2026-07-15).

warn

Not signed

info

8 records at the apex

Type	Value	TTL
SOA	ns6.mr-wolf.nl. marcel.51north.nl. 2026071503 3600 1800 1209600 3600	3600
NS	ns5.mr-wolf.nl.	3600
NS	ns6.mr-wolf.nl.	3600
A	104.248.90.115	3600
AAAA	2a03:b0c0:2:f0:0:1:6ccc:c001	3600
MX	15 tolhuistuin-nl.mail.protection.outlook.com.	3600
TXT	"v=spf1 a mx include:_spf.mr-wolf.nl include:spf.protection.outlook.com include:servers.mcsv.net include:amazonses.com -all"	3600
TXT	"MS=ms86060669"	3600