Domain report: lezen.nl

Registration

info

.nl country-code

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

#3

info

ns1.ivin.nl, ns2.ivin.nl, ns3.ivin.nl, ns4.ivin.nl

Nameserver	Addresses	Network (AS)	Glue
ns1.ivin.nl	185.136.96.111 2a06:fb00:1::1:111	AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG	185.136.96.111 2a06:fb00:1::1:111
ns2.ivin.nl	185.136.97.111 2a06:fb00:1::2:111	AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG	185.136.97.111 2a06:fb00:1::2:111
ns3.ivin.nl	185.136.98.111 2a06:fb00:1::3:111	AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG	185.136.98.111 2a06:fb00:1::3:111
ns4.ivin.nl	185.136.99.111 2a06:fb00:1::4:111	AS203391 CLOUDNSNET - Cloud DNS Ltd, BG AS203391 CLOUDNSNET - Cloud DNS Ltd, BG	185.136.99.111 2a06:fb00:1::4:111

✓ 4 nameservers #6

Delegated to ns1.ivin.nl, ns2.ivin.nl, ns3.ivin.nl, ns4.ivin.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.
i

One address family in one network

all IPv6 addresses are in 2a06:fb00:1::/48, while the other address family is spread over several networks.

#10
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS203391 (CLOUDNSNET - Cloud DNS Ltd, BG): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
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
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

info

8 of 8 addresses answer authoritatively

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.ivin.nl 185.136.96.111	NOERROR, 3 ms, authoritative	no	yes / yes	refused	de3-8
ns1.ivin.nl 2a06:fb00:1::1:111	NOERROR, 4 ms, authoritative	no	yes / yes	refused	de3-8
ns2.ivin.nl 185.136.97.111	NOERROR, 3 ms, authoritative	no	yes / yes	refused	de3-8
ns2.ivin.nl 2a06:fb00:1::2:111	NOERROR, 4 ms, authoritative	no	yes / yes	refused	de3-8
ns3.ivin.nl 185.136.98.111	NOERROR, 4 ms, authoritative	no	yes / yes	refused	de3-8
ns3.ivin.nl 2a06:fb00:1::3:111	NOERROR, 4 ms, authoritative	no	yes / yes	refused	de3-8
ns4.ivin.nl 185.136.99.111	NOERROR, 3 ms, authoritative	no	yes / yes	refused	de3-8
ns4.ivin.nl 2a06:fb00:1::4:111	NOERROR, 4 ms, authoritative	no	yes / yes	refused	de3-8

✓ All respond #14

All 8 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.ivin.nl: "de3-8"; ns2.ivin.nl: "de3-8"; ns3.ivin.nl: "de3-8"; ns4.ivin.nl: "de3-8".

#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.

pass

serial 2026102204 · primary ns1.ivin.nl

✓ Serial 2026102204 everywhere #22

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

SOA refresh 4h, retry 1h, expire 14d, negative TTL 2h.
✓ Primary is a public nameserver #24

The primary nameserver ns1.ivin.nl is one of the listed nameservers.
✓ Contact domains@intervisors.net #25

The SOA RNAME domains.intervisors.net means domains@intervisors.net.
✓ Date-based serial #26

The serial 2026102204 follows the YYYYMMDDnn convention (2026-10-22).

warn

Not signed

warn

10 records at the apex

Type	Value	TTL
SOA	ns1.ivin.nl. domains.intervisors.net. 2026102204 14400 3600 1209600 7200	7200
NS	ns3.ivin.nl.	3600
NS	ns2.ivin.nl.	3600
NS	ns4.ivin.nl.	3600
NS	ns1.ivin.nl.	3600
A	51.254.155.25	3600
MX	10 lezen-nl.mail.protection.outlook.com.	60
TXT	"linkedin-site-verification=e391fa38-bc29-4191-9fd7-7fa665e150a8"	60
TXT	"v=spf1 include:spf.protection.outlook.com ip4:37.74.123.163 a:www.lezen.nl a:webmail.lezen.nl include:servers.mcsv.net include:_spf.exsilia.net ip4:89.221.183.226 ~all"	60
TXT	"MS=ms35020394"	60