Domain report: uwv.nl

Registration

info

.nl country-code · KPN B.V.

Found

TLD: .nl (country-code)
ICANN policies apply: no
Registrar: KPN B.V.
Registered: 6 December 1999
Last changed: 26 May 2025
Status: active
Registry nameservers: ns1.kpn.net, ns11.kpn.net
RDAP server: https://rdap.sidn.nl/

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

Expiry date not published

The registry does not publish the expiry date in RDAP. Check it with your registrar.

#3
i

No transfer lock

The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.

#4
✓ Registry and delegation match #5

The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns1.kpn.net, ns11.kpn.net

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns1.kpn.net, ns11.kpn.net
NS in the zone: ns1.kpn.net, ns11.kpn.net

Nameserver	Addresses	Network (AS)	Glue
ns1.kpn.net	194.151.228.10 2a02:a47f:ac:1::153	AS1136 KPN - KPN B.V., NL AS1136 KPN - KPN B.V., NL	-
ns11.kpn.net	213.75.63.33 2a02:a47f:ac:1::1153	AS1136 KPN - KPN B.V., NL AS1136 KPN - KPN B.V., NL	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.kpn.net, ns11.kpn.net.

#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.
i

One address family in one network

all IPv6 addresses are in 2a02:a47f:ac::/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 (AS1136 (KPN - KPN B.V., NL): 4 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 .net

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

pass

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.kpn.net 194.151.228.10	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns1.kpn.net 2a02:a47f:ac:1::153	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns11.kpn.net 213.75.63.33	NOERROR, 15 ms, authoritative	no	yes / yes	refused	-
ns11.kpn.net 2a02:a47f:ac:1::1153	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 4 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

pass

serial 2026101501 · primary ns1.kpn.net

Found

Primary (MNAME): ns1.kpn.net
Contact (RNAME): zonemaster.kpn.com
Serial: 2026101501
Refresh / retry: 10800 s / 3600 s
Expire: 604800 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns1.kpn.net (194.151.228.10)	2026101501
ns1.kpn.net (2a02:a47f:ac:1::153)	2026101501
ns11.kpn.net (213.75.63.33)	2026101501
ns11.kpn.net (2a02:a47f:ac:1::1153)	2026101501

Checks

✓ Serial 2026101501 everywhere #22

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

SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns1.kpn.net is one of the listed nameservers.
✓ Contact zonemaster@kpn.com #25

The SOA RNAME zonemaster.kpn.com means zonemaster@kpn.com.
✓ Date-based serial #26

The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 0 iterations, 0-byte salt
Signatures valid until: 29 October 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
54075	ECDSAP256SHA256 (13)	SHA256 ABA38552E81E837E…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
568	ZSK (256)	ECDSAP256SHA256 (13)
54075	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 54075 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-10-29 #30

The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
✓ NSEC3 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

40 records at the apex

Found

Read from: 194.151.228.10:53

Type	Value	TTL
SOA	ns1.kpn.net. zonemaster.kpn.com. 2026101501 10800 3600 604800 3600	3600
NS	ns11.kpn.net.	3600
NS	ns1.kpn.net.	3600
A	145.84.24.128	3600
AAAA	2a07:3502:1122:0:145:84:24:128	3600
MX	8 uwvsmtp06.uwv.nl.	3600
MX	8 uwvsmtp05.uwv.nl.	3600
TXT	"MS=ms54505253"	3600
TXT	"_lpowxk44z4rvwvy2x9pk2qc1e7vwb33"	3600
TXT	"_mieoygp7pw4sxfbf67ob9ds802f0uyj"	3600
TXT	"miro-verification=241def158fd9c6dd1b64009bdbb217ac9c31afa9"	3600
TXT	"_v9scydy6lb20jpg0jhsocsw9tqu10kg"	3600
TXT	"flexera-domain-verification-dyoascpyfcknavsl"	3600
TXT	"cisco-ci-domain-verification=34c1758c69f81024abc89d173fe97ad84a652575412a57354ddd185a4996b093"	3600
TXT	"QuoVadis=3442265d-7afe-4b45-b533-92d5e172391c"	3600
TXT	"DomainVerification=FVUAM11SIWPLJL5NKJRVVHIS4Y7UCV1B7S4WWJQP2YBERC5GIWSVS1LIIR0G1H3O"	3600
TXT	"s/sa2x8o70UChd864vyvJtuarNMj0Jj5z48LBQM7wEY="	3600
TXT	"_globalsign-domain-verification=_I0KF8K1VNoni7-Dm76Qz1uw6Cu_qKI--D_MMYhpQw"	3600
TXT	"_globalsign-domain-verification=fiOOuziSVCflA-Woa9OZWINyh0evTWXrbOem3fnuY3"	3600
TXT	"6c0eb1d9f2cd61a66d0a104a72d1912fa8ec21f8d1175c18cacb4038d8f47ac9"	3600
TXT	"6eea24bd40b1b2e8bf514c06a1d0262ba6a5c4b3c6a7820a778af16c71a06d0b"	3600
TXT	"cisco-ci-domain-verification=2d3653a315c73250901fbf9dda452ebef5aeb21190e905df17eb5a373fa8ff0d"	3600
TXT	"_g5mxrs08oj502fvkx150gbbrkcfw1rd"	3600
TXT	"_hou4yjb0wasztpv3dotg058sdt5cn0b"	3600
TXT	"cisco-ci-domain-verification=36e1b346f55b2d4aef8fa56f7b5038b9a9fcf76b8573d20a5de9ce9925641591"	3600
TXT	"57db10b10a8eaccb38f4bbf333903678252e5681b3271b2bc98138d67740f03e"	3600
TXT	"v=spf1 ip4:145.84.0.253 ip4:145.84.0.254 ip6:2a02:a400:0124:0400::1002 ip6:2a02:a400:0124:0400::1004 ip6:2a07:3502:1120:0040::157 ip6:2a07:3502:1120:0040::158 ip4:31.149.21.162 ip4:31.149.21.163 ip4:168.63.28.84 ip6:2603:1020:201:10::37 ip4:80.250.140.30 " "ip4:185.136.64.128/27 ip4:185.136.65.128/27 ip4:136.144.245.72 ip4:87.251.53.86 ip4:169.50.179.149 ip4:216.239.32.151 ip4:199.255.192.0/22 ip4:199.127.232.0/22 ip4:54.240.0.0/18 " "include:_spf.salesforce.com include:fm572.fmspf.net include:spf.prosodie.net include:spf.protection.outlook.com include:spf.avetica.net ip4:3.121.79.174/32 ip4:3.72.199.195/32 ip4:18.158.85.162/32 ip4:52.27.95.185/32 ip4:52.12.208.63/32 ip4:54.188.78.95/3" "2 ip4:108.143.216.18 ip4:52.236.128.115 include:mailservers.expoints.nl include:_spf.tem.scaleway.com -all"	3600
TXT	"mindmanager-verification=3641d61ca832fd0aa50021c8d9e07e42f81b60049a5c897c596e4a9b8f62a8de"	3600
TXT	"_globalsign-domain-verification=YnD6X_JMaWhjNP47ipvuPuy43WyyE6AMr2z1UUgQbn"	3600
TXT	"apple-domain-verification=ji6D8lKIm6RMJuv3"	3600
TXT	"de9bc53c9bb8479ff663f7760dc50a823be3ef5f57554fa61404aab94a78be0c"	3600
TXT	"atlassian-domain-verification=laWt9MxKlVUL2bACoxYXsawS2EqlQLMBC5mAFmcCX2eTEYQxYtQYR8em45O4yVLt"	3600
TXT	"adobe-idp-site-verification=383ca2fa-e7b8-47d7-a9a9-3281d689f82e"	3600
TXT	"atlassian-sending-domain-verification=e5c25dea-e61d-41a7-8170-9883702dedc2"	3600
CAA	0 iodef "mailto:ict.netwerkconnectiviteit@uwv.nl"	3600
CAA	0 issue "globalsign.com"	3600
CAA	0 issue "sectigo.com"	3600
CAA	0 issue "www.digicert.com"	3600
CAA	0 issue "amazon.com"	3600
CAA	0 issue "letsencrypt.org"	3600

Checks

✓ TTLs within range #32

TTLs: A 1h, AAAA 1h, MX 1h, NS 1h.
✓ 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: globalsign.com, sectigo.com, www.digicert.com, amazon.com, letsencrypt.org.