rvo.nl

Checked 21 October 2026, 21:25 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 8 info

Registration

info

.nl country-code · Rijksoverheid

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Rijksoverheid
Registered
23 June 2005
Last changed
24 August 2026
Status
active
Registry nameservers
ns1.dictu.nl, ns2.dictu.nl
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.dictu.nl, ns2.dictu.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.dictu.nl, ns2.dictu.nl
NS in the zone
ns1.dictu.nl, ns2.dictu.nl
NameserverAddressesNetwork (AS)Glue
ns1.dictu.nl145.12.216.1 2a04:9a00:1021:201c::1AS203396 MinEZ-DICTU - Ministerie van Economische Zaken, NL AS203396 MinEZ-DICTU - Ministerie van Economische Zaken, NL145.12.216.1 2a04:9a00:1021:201c::1
ns2.dictu.nl145.69.216.1 2a04:9a00:1022:201c::1AS203396 MinEZ-DICTU - Ministerie van Economische Zaken, NL AS203396 MinEZ-DICTU - Ministerie van Economische Zaken, NL145.69.216.1 2a04:9a00:1022:201c::1

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.dictu.nl, ns2.dictu.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 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS203396 (MinEZ-DICTU - Ministerie van Economische Zaken, 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 .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.

Nameservers

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.dictu.nl 145.12.216.1NOERROR, 21 ms, authoritativenoyes / yesrefused-
ns1.dictu.nl 2a04:9a00:1021:201c::1NOERROR, 15 ms, authoritativenoyes / yesrefused-
ns2.dictu.nl 145.69.216.1NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.dictu.nl 2a04:9a00:1022:201c::1NOERROR, 14 ms, authoritativenoyes / yesrefused-

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 212392 · primary ns1.dictu.nl

Found

Primary (MNAME)
ns1.dictu.nl
Contact (RNAME)
datacom.dictu.nl
Serial
212392
Refresh / retry
43200 s / 3600 s
Expire
2419200 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
ns1.dictu.nl (145.12.216.1)212392
ns1.dictu.nl (2a04:9a00:1021:201c::1)212392
ns2.dictu.nl (145.69.216.1)212392
ns2.dictu.nl (2a04:9a00:1022:201c::1)212392

Checks

  • ✓ Serial 212392 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 1h, expire 28d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.dictu.nl is one of the listed nameservers.
  • ✓ Contact datacom@dictu.nl #25
    The SOA RNAME datacom.dictu.nl means datacom@dictu.nl.
  • ✓ Counter serial #26
    The serial 212392 is a plain counter.

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
10 iterations, 14-byte salt
Signatures valid until
25 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
41662ECDSAP256SHA256 (13)SHA256 5A2D9E6FDF479543…yes

DNSKEY in the zone

Key tagRoleAlgorithm
26152KSK (257)RSASHA256 (8)
53016ZSK (256)ECDSAP256SHA256 (13)
3781ZSK (256)ECDSAP256SHA256 (13)
41662KSK (257)ECDSAP256SHA256 (13)
20776KSK (257)RSASHA256 (8)

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 41662 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13), RSASHA256 (8).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 96h0m0s and created on demand; the current one was made at 2026-10-21 18:28 UTC and expires at 2026-10-25 18:37 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 10 iterations and a 14-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

info

18 records at the apex

Found

Read from
145.12.216.1:53
TypeValueTTL
SOAns1.dictu.nl. datacom.dictu.nl. 212392 43200 3600 2419200 900300
NSns1.dictu.nl.300
NSns2.dictu.nl.300
A93.92.102.21300
AAAA2001:4c10:1015:5001::300
MX10 mail04.dictu.nl.300
MX100 mail03.dictu.nl.300
MX10 mail02.dictu.nl.300
MX100 mail01.dictu.nl.300
TXT"ahrefs-site-verification_b4b494f3f3c5595410dd80107136be9033e72ddc7761ed17ed0980f461055e89"300
TXT"_lpi3aquahgzifh2tk73zoi33p720l71"300
TXT"miro-verification=9e994fb055bdf079049630ff0947e63f6a68e9d5"300
TXT"_32qymfl3gecpq0qapdwn3qysymvjma8"300
TXT"_kc6f59prgod3hcnz2g7c2xz09p1jmqy"300
TXT"_n1dvxwljs3buzjtajsm27k46avyrgco"300
TXT"v=spf1 include:_spf.dictu.nl include:spf.anachron.com include:_spf.intermax.nl include:_spf.spotler.email include:_spf.dtnr.nl include:spf1.mett.nl include:spf.crowdtech.com ip4:94.228.142.64 ip4:94.228.142.65 ip4:185.132.252.112 -all"300
TXT"cisco-ci-domain-verification=3d34d484e64dd7404dee57b47d8ace4fe29e4bb9312bef57e3caf5ed0e2c8e0f"300
TXT"google-site-verification=Q-Cu7wTpyn_riFvkDC19fX-rsL5f5YuGmugHMWjVB14"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, NS 5m. The NS TTL at the parent is 1h and in the zone 5m; resolvers may use either.
  • ✓ 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