tweedekamer.nl

Checked 21 October 2026, 21:26 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 6 info

Registration

info

.nl country-code · Rijksoverheid

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Rijksoverheid
Registered
17 September 1998
Last changed
10 January 2025
Status
active
Registry nameservers
a1-191.akam.net, a12-66.akam.net, a28-64.akam.net, a3-66.akam.net, a4-65.akam.net, a7-66.akam.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

a1-191.akam.net, a12-66.akam.net, a28-64.akam.net, a3-66.akam.net, a4-65.akam.net, a7-66.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-191.akam.net, a12-66.akam.net, a28-64.akam.net, a3-66.akam.net, a4-65.akam.net, a7-66.akam.net
NS in the zone
a1-191.akam.net, a12-66.akam.net, a28-64.akam.net, a3-66.akam.net, a4-65.akam.net, a7-66.akam.net
NameserverAddressesNetwork (AS)Glue
a1-191.akam.net193.108.91.191 2600:1401:2::bfAS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a12-66.akam.net184.26.160.66 2600:1480:f000::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a28-64.akam.net95.100.173.64 2600:1480:d800::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-66.akam.net96.7.49.66 2600:1408:1c::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a4-65.akam.net72.246.46.65 2600:1480:9000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-66.akam.net23.61.199.66 2600:1406:32::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-191.akam.net, a12-66.akam.net, a28-64.akam.net, a3-66.akam.net, a4-65.akam.net, a7-66.akam.net.
  • ✓ 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 6 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 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 .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

warn

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
a1-191.akam.net 193.108.91.191NOERROR, 3 ms, authoritativenoyes / yesrefused41824.5
a1-191.akam.net 2600:1401:2::bfNOERROR, 5 ms, authoritativenoyes / yesrefused41824.10
a12-66.akam.net 184.26.160.66NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a12-66.akam.net 2600:1480:f000::42NOERROR, 5 ms, authoritativenoyes / yesrefused48878.27
a28-64.akam.net 95.100.173.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a28-64.akam.net 2600:1480:d800::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a3-66.akam.net 96.7.49.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.4
a3-66.akam.net 2600:1408:1c::42NOERROR, 5 ms, authoritativenoyes / yesrefused41824.9
a4-65.akam.net 72.246.46.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a4-65.akam.net 2600:1480:9000::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a7-66.akam.net 23.61.199.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a7-66.akam.net 2600:1406:32::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10

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: a1-191.akam.net: "41824.5"; a1-191.akam.net: "41824.10"; a12-66.akam.net: "48878.29"; a12-66.akam.net: "48878.27"; a28-64.akam.net: "48878.31"; a28-64.akam.net: "48878.32"; a3-66.akam.net: "41824.4"; a3-66.akam.net: "41824.9"; a4-65.akam.net: "48878.30"; a4-65.akam.net: "48878.27"; a7-66.akam.net: "41824.8"; a7-66.akam.net: "41824.10". 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 2007400160 · primary a1-191.akam.net

Found

Primary (MNAME)
a1-191.akam.net
Contact (RNAME)
please_set_email.absolutely.nowhere
Serial
2007400160
Refresh / retry
10800 s / 1080 s
Expire
2592000 s
Negative TTL
900 s

Serial per nameserver

NameserverSerial
a1-191.akam.net (193.108.91.191)2007400160
a1-191.akam.net (2600:1401:2::bf)2007400160
a12-66.akam.net (184.26.160.66)2007400160
a12-66.akam.net (2600:1480:f000::42)2007400160
a28-64.akam.net (95.100.173.64)2007400160
a28-64.akam.net (2600:1480:d800::40)2007400160
a3-66.akam.net (96.7.49.66)2007400160
a3-66.akam.net (2600:1408:1c::42)2007400160
a4-65.akam.net (72.246.46.65)2007400160
a4-65.akam.net (2600:1480:9000::41)2007400160
a7-66.akam.net (23.61.199.66)2007400160
a7-66.akam.net (2600:1406:32::42)2007400160

Checks

  • ✓ Serial 2007400160 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 18m, expire 30d, negative TTL 15m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-191.akam.net is one of the listed nameservers.
  • ✓ Contact please_set_email@absolutely.nowhere #25
    The SOA RNAME please_set_email.absolutely.nowhere means please_set_email@absolutely.nowhere.
  • ✓ Timestamp serial #26
    The serial 2007400160 is a Unix timestamp (2033-08-11 19:09 UTC).

DNSSEC

warn

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
46300RSASHA256 (8)SHA256 6BEB7593F37B76C9…yes

DNSKEY in the zone

Key tagRoleAlgorithm
49408ZSK (256)RSASHA256 (8)
46300KSK (257)RSASHA256 (8)
19861ZSK (256)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 46300 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: 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 10:12 UTC and expires at 2026-10-25 10:23 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 20 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

20 records at the apex

Found

Read from
193.108.91.191:53
TypeValueTTL
SOAa1-191.akam.net. please_set_email.absolutely.nowhere. 2007400160 10800 1080 2592000 900900
NSa12-66.akam.net.900
NSa3-66.akam.net.900
NSa1-191.akam.net.900
NSa28-64.akam.net.900
NSa4-65.akam.net.900
NSa7-66.akam.net.900
A93.92.102.26900
AAAA2001:4c10:1015:5001::1900
MX10 tweedekamer-nl.h-v1.mx.microsoft.3600
TXT"v=spf1 mx a:www.tweedekamer.nl a:smtp.parlement.nl ip6:2a0b:3100:20::28 include:_spf.dtnr.nl include:_spf.intermax.nl include:spf.protection.outlook.com include:_spf.eu.mailgun.org include:_spf.mail.services.bastion365.net -all"300
TXT"pexip-ms-tenant-domain-verification=35fcd854-2ba3-487b-a2de-10802b705a63"300
TXT"_mjjyk3uimbvi01720z9grayiz49wer4"300
TXT"bastion365-domain-validation=af426802593cc"300
TXT"adobe-idp-site-verification=a3664b0112eba5dc7299d34f5f89edd4ac7d397a9f9ecbfab4ed284e1f005a59"300
TXT"_c0d3t7qw6uqc8l1flxg3edborng3g8d"300
TXT"_5sby6kb7jpy6c6sccy02g7n283b1npb"300
TXT"MS=ms35452888"300
TXT"Tweede Kamer der Staten-Generaal, Dutch Parliament"300
TXT"hqsbtrmg7fqi4anu31qbkorlk3"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 15m, AAAA 15m, MX 1h, NS 15m. The NS TTL at the parent is 1h and in the zone 15m; 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.
  • 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