Domain report: knm.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

info

dell.ns.cloudflare.com, sergi.ns.cloudflare.com

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: dell.ns.cloudflare.com, sergi.ns.cloudflare.com
NS in the zone: dell.ns.cloudflare.com, sergi.ns.cloudflare.com

Nameserver	Addresses	Network (AS)	Glue
dell.ns.cloudflare.com	173.245.58.94 108.162.192.94 172.64.32.94 2606:4700:50::adf5:3a5e 2803:f800:50::6ca2:c05e 2a06:98c1:50::ac40:205e	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-
sergi.ns.cloudflare.com	162.159.44.68 108.162.195.68 172.64.35.68 2a06:98c1:50::ac40:2344 2803:f800:50::6ca2:c344 2606:4700:58::a29f:2c44	AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: dell.ns.cloudflare.com, sergi.ns.cloudflare.com.

#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 6 IPv4 /24s and 4 IPv6 /48s.
i

All nameservers in one AS

All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .com

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.

Nameservers

warn

12 of 12 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
dell.ns.cloudflare.com 173.245.58.94	NOERROR, 16 ms, authoritative	no	yes / yes	refused	2026.10.2
dell.ns.cloudflare.com 108.162.192.94	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
dell.ns.cloudflare.com 172.64.32.94	NOERROR, 15 ms, authoritative	no	yes / yes	refused	2026.10.2
dell.ns.cloudflare.com 2606:4700:50::adf5:3a5e	NOERROR, 21 ms, authoritative	no	yes / yes	refused	2026.10.2
dell.ns.cloudflare.com 2803:f800:50::6ca2:c05e	NOERROR, 20 ms, authoritative	no	yes / yes	refused	2026.10.2
dell.ns.cloudflare.com 2a06:98c1:50::ac40:205e	NOERROR, 20 ms, authoritative	no	yes / yes	refused	2026.10.2
sergi.ns.cloudflare.com 162.159.44.68	NOERROR, 33 ms, authoritative	no	yes / yes	refused	2026.10.2
sergi.ns.cloudflare.com 108.162.195.68	NOERROR, 17 ms, authoritative	no	yes / yes	refused	2026.10.2
sergi.ns.cloudflare.com 172.64.35.68	NOERROR, 16 ms, authoritative	no	yes / yes	refused	2026.10.2
sergi.ns.cloudflare.com 2a06:98c1:50::ac40:2344	NOERROR, 17 ms, authoritative	no	yes / yes	refused	2026.10.2
sergi.ns.cloudflare.com 2803:f800:50::6ca2:c344	NOERROR, 17 ms, authoritative	no	yes / yes	refused	2026.10.2
sergi.ns.cloudflare.com 2606:4700:58::a29f:2c44	NOERROR, 16 ms, authoritative	no	yes / yes	refused	2026.10.2

Checks

✓ All respond #14

All 12 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: dell.ns.cloudflare.com: "2026.10.2"; sergi.ns.cloudflare.com: "2026.10.2". 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 2418131555 · primary dell.ns.cloudflare.com

Found

Primary (MNAME): dell.ns.cloudflare.com
Contact (RNAME): dns.cloudflare.com
Serial: 2418131555
Refresh / retry: 10000 s / 2400 s
Expire: 604800 s
Negative TTL: 1800 s

Serial per nameserver

Nameserver	Serial
dell.ns.cloudflare.com (173.245.58.94)	2418131555
dell.ns.cloudflare.com (108.162.192.94)	2418131555
dell.ns.cloudflare.com (172.64.32.94)	2418131555
dell.ns.cloudflare.com (2606:4700:50::adf5:3a5e)	2418131555
dell.ns.cloudflare.com (2803:f800:50::6ca2:c05e)	2418131555
dell.ns.cloudflare.com (2a06:98c1:50::ac40:205e)	2418131555
sergi.ns.cloudflare.com (162.159.44.68)	2418131555
sergi.ns.cloudflare.com (108.162.195.68)	2418131555
sergi.ns.cloudflare.com (172.64.35.68)	2418131555
sergi.ns.cloudflare.com (2a06:98c1:50::ac40:2344)	2418131555
sergi.ns.cloudflare.com (2803:f800:50::6ca2:c344)	2418131555
sergi.ns.cloudflare.com (2606:4700:58::a29f:2c44)	2418131555

Checks

✓ Serial 2418131555 everywhere #22

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

SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
✓ Primary is a public nameserver #24

The primary nameserver dell.ns.cloudflare.com is one of the listed nameservers.
✓ Contact dns@cloudflare.com #25

The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
✓ Timestamp serial #26

The serial 2418131555 is a Unix timestamp (2046-08-17 15:12 UTC).

DNSSEC

warn

Not signed

Found

Validated by resolver: no

Checks

!

Not signed

The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.

#27

Records

pass

32 records at the apex

Found

Read from: 173.245.58.94:53

Type	Value	TTL
SOA	dell.ns.cloudflare.com. dns.cloudflare.com. 2418131555 10000 2400 604800 1800	1800
NS	dell.ns.cloudflare.com.	86400
NS	sergi.ns.cloudflare.com.	86400
A	104.26.5.15	300
A	172.67.75.166	300
A	104.26.4.15	300
AAAA	2606:4700:20::681a:50f	300
AAAA	2606:4700:20::ac43:4ba6	300
AAAA	2606:4700:20::681a:40f	300
MX	5 knm-nl.mail.protection.outlook.com.	300
TXT	"5jvpqq52vv1o7q3e3nncihg7ea"	300
TXT	"MS=ms36296002"	300
TXT	"facebook-domain-verification=j0mw7ejc4t2rtbtxsm53o2zxmk7b1f"	300
TXT	"google-site-verification=rjV8d9-xk4HwMUGm8rP0CSBVs__gmlHd1ONGdurK2j4"	300
TXT	"knm-global-fd.azurefd.net"	300
TXT	"otqedvi3eceu7qba6aed7ghe2p"	300
TXT	"v=spf1 include:spf.protection.outlook.com a:srv01.knm.nl a:shipitsmarter5.pins-web.net include:spfinclude.werkonline.nu ip4:87.250.154.89 include:servers.mcsv.net ip4:194.165.34.0/24 include:_spf.argewebhosting.nl include:em1097.knm.nl -all"	300
CAA	0 iodef "mailto:Online@royaldutchmint.com"	300
CAA	0 issue "comodoca.com"	300
CAA	0 issue "digicert.com; cansignhttpexchanges=yes"	300
CAA	0 issue "issue \"letsencrypt.org\""	300
CAA	0 issue "issue \"pki.goog\""	300
CAA	0 issue "issue \"sectigo.com\""	300
CAA	0 issue "letsencrypt.org"	300
CAA	0 issue "pki.goog; cansignhttpexchanges=yes"	300
CAA	0 issue "sectigo.com"	300
CAA	0 issue "ssl.com"	300
CAA	0 issuewild "comodoca.com"	300
CAA	0 issuewild "digicert.com; cansignhttpexchanges=yes"	300
CAA	0 issuewild "letsencrypt.org"	300
CAA	0 issuewild "pki.goog; cansignhttpexchanges=yes"	300
CAA	0 issuewild "ssl.com"	300

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 5m, MX 5m, 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: comodoca.com, digicert.com, issue "letsencrypt.org", issue "pki.goog", issue "sectigo.com", letsencrypt.org, pki.goog, sectigo.com, ssl.com.