ikgastarten.nl

Checked 22 October 2026, 13:52 UTC · via 8.8.8.8
!Passed with warnings
27 passed 2 warnings 0 failed 4 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/ikgastarten.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/ikgastarten.nl returned HTTP 429
    #3

Delegation

info

a1-191.akam.net, a12-64.akam.net, a18-65.akam.net, a20-66.akam.net, a3-67.akam.net, a7-64.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-191.akam.net, a12-64.akam.net, a18-65.akam.net, a20-66.akam.net, a3-67.akam.net, a7-64.akam.net
NS in the zone
a1-191.akam.net, a12-64.akam.net, a18-65.akam.net, a20-66.akam.net, a3-67.akam.net, a7-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-191.akam.net193.108.91.191 2600:1401:2::bfAS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a12-64.akam.net184.26.160.64 2600:1480:f000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a18-65.akam.net95.101.36.65 2600:1480:4800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-66.akam.net95.100.175.66 2a02:26f0:67::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a3-67.akam.net96.7.49.67 2600:1408:1c::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-64.akam.net23.61.199.64 2600:1406:32::40AS21342 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, a12-64.akam.net, a18-65.akam.net, a20-66.akam.net, a3-67.akam.net, a7-64.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.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS20940 (AKAMAI-ASN1 - Akamai International B.V., NL): 1 address; AS21342 (AKAMAI-ASN2 - Akamai International B.V., NL): 11 addresses.
  • 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, 4 ms, authoritativenoyes / yesrefused41824.7
a1-191.akam.net 2600:1401:2::bfNOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a12-64.akam.net 184.26.160.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.31
a12-64.akam.net 2600:1480:f000::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a18-65.akam.net 95.101.36.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a18-65.akam.net 2600:1480:4800::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a20-66.akam.net 95.100.175.66NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a20-66.akam.net 2a02:26f0:67::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.26
a3-67.akam.net 96.7.49.67NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a3-67.akam.net 2600:1408:1c::43NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a7-64.akam.net 23.61.199.64NOERROR, 3 ms, authoritativenoyes / yesrefused41824.11
a7-64.akam.net 2600:1406:32::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5

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: "41824.7"; a12-64.akam.net: "48878.31"; a12-64.akam.net: "48878.27"; a18-65.akam.net: "48878.32"; a18-65.akam.net: "48878.27"; a20-66.akam.net: "48878.26"; a3-67.akam.net: "41824.8"; a7-64.akam.net: "41824.11"; a7-64.akam.net: "41824.5". 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 2020120737 · primary a1-191.akam.net

Found

Primary (MNAME)
a1-191.akam.net
Contact (RNAME)
domainmanagement.rabobank.nl
Serial
2020120737
Refresh / retry
7200 s / 1200 s
Expire
2419200 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
a1-191.akam.net (193.108.91.191)2020120737
a1-191.akam.net (2600:1401:2::bf)2020120737
a12-64.akam.net (184.26.160.64)2020120737
a12-64.akam.net (2600:1480:f000::40)2020120737
a18-65.akam.net (95.101.36.65)2020120737
a18-65.akam.net (2600:1480:4800::41)2020120737
a20-66.akam.net (95.100.175.66)2020120737
a20-66.akam.net (2a02:26f0:67::42)2020120737
a3-67.akam.net (96.7.49.67)2020120737
a3-67.akam.net (2600:1408:1c::43)2020120737
a7-64.akam.net (23.61.199.64)2020120737
a7-64.akam.net (2600:1406:32::40)2020120737

Checks

  • ✓ Serial 2020120737 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 20m, expire 28d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-191.akam.net is one of the listed nameservers.
  • ✓ Contact domainmanagement@rabobank.nl #25
    The SOA RNAME domainmanagement.rabobank.nl means domainmanagement@rabobank.nl.
  • ✓ Date-based serial #26
    The serial 2020120737 follows the YYYYMMDDnn convention (2020-12-07).

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
25 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
20370ECDSAP256SHA256 (13)SHA256 8AE5E699753A20AC…yes

DNSKEY in the zone

Key tagRoleAlgorithm
20370KSK (257)ECDSAP256SHA256 (13)
32743ZSK (256)ECDSAP256SHA256 (13)
56049ZSK (256)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 20370 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 73h0m0s and created on demand; the current one was made at 2026-10-22 11:56 UTC and expires at 2026-10-25 12:56 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

24 records at the apex

Found

Read from
193.108.91.191:53
TypeValueTTL
SOAa1-191.akam.net. domainmanagement.rabobank.nl. 2020120737 7200 1200 2419200 6007200
NSa20-66.akam.net.7200
NSa3-67.akam.net.7200
NSa18-65.akam.net.7200
NSa12-64.akam.net.7200
NSa7-64.akam.net.7200
NSa1-191.akam.net.7200
A2.16.183.1320
A2.16.183.1220
AAAA2a02:26f0:b700:18::210:ccd920
AAAA2a02:26f0:b700:18::210:ccd220
MX10 mx01-asd2.solvinity.com.7200
MX20 mx02-asd2.solvinity.com.7200
TXT"5ywfm6bq9mf04vf15900pv37sxw59rpf"7200
TXT"_h452iygnew6k7ov73brn32xi5k3mi4u"7200
TXT"v=spf1 include:_spf_mx.solvinity.com include:_senderspf.copernica.com a mx -all"7200
TXT"a72f689409b0497d8685951f35fa957f"7200
TXT"006c141d66224091bfbac2e664b61fa1"7200
TXT"_254oo3c0em896yfq4xowgnxao4rqm7u"7200
TXT"cg9mxmp6m2yz4qv7gzcrn9zkv6qgmjz2"7200
TXT"_wx998ffbqgtwsjrr7moyjlik1uu9wxz"7200
TXT"69n8vtm7pl6krsjdrwd5d3vjlfr10y0w"7200
TXT"0tbj9n87g2wm1npwj3pvnjs3rm0wbcdy"7200
TXT"_alorw5nhs0q75hm8j210bnjaqpsnabw"7200

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2h; resolvers may use either.
    #32
  • ✓ 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