rabo-clubsupport.nl

Checked 22 October 2026, 15:31 UTC · via 8.8.8.8
!Passed with warnings
29 passed 1 warning 0 failed 3 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/rabo-clubsupport.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/rabo-clubsupport.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, 5 ms, authoritativenoyes / yesrefused41824.5
a1-191.akam.net 2600:1401:2::bfNOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a12-64.akam.net 184.26.160.64NOERROR, 5 ms, authoritativenoyes / yesrefused48878.31
a12-64.akam.net 2600:1480:f000::40NOERROR, 5 ms, authoritativenoyes / yesrefused48878.29
a18-65.akam.net 95.101.36.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a18-65.akam.net 2600:1480:4800::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a20-66.akam.net 95.100.175.66NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a20-66.akam.net 2a02:26f0:67::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.33
a3-67.akam.net 96.7.49.67NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a3-67.akam.net 2600:1408:1c::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a7-64.akam.net 23.61.199.64NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a7-64.akam.net 2600:1406:32::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4

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"; a12-64.akam.net: "48878.31"; a12-64.akam.net: "48878.29"; a18-65.akam.net: "48878.32"; a18-65.akam.net: "48878.33"; a20-66.akam.net: "48878.30"; a20-66.akam.net: "48878.33"; a3-67.akam.net: "41824.10"; a3-67.akam.net: "41824.4"; a7-64.akam.net: "41824.9"; a7-64.akam.net: "41824.4". 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 2024220140 · primary a1-191.akam.net

Found

Primary (MNAME)
a1-191.akam.net
Contact (RNAME)
domainmanagement.rabobank.nl
Serial
2024220140
Refresh / retry
7200 s / 600 s
Expire
1209600 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
a1-191.akam.net (193.108.91.191)2024220140
a1-191.akam.net (2600:1401:2::bf)2024220140
a12-64.akam.net (184.26.160.64)2024220140
a12-64.akam.net (2600:1480:f000::40)2024220140
a18-65.akam.net (95.101.36.65)2024220140
a18-65.akam.net (2600:1480:4800::41)2024220140
a20-66.akam.net (95.100.175.66)2024220140
a20-66.akam.net (2a02:26f0:67::42)2024220140
a3-67.akam.net (96.7.49.67)2024220140
a3-67.akam.net (2600:1408:1c::43)2024220140
a7-64.akam.net (23.61.199.64)2024220140
a7-64.akam.net (2600:1406:32::40)2024220140

Checks

  • ✓ Serial 2024220140 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 10m, expire 14d, 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.
  • ✓ Timestamp serial #26
    The serial 2024220140 is a Unix timestamp (2034-02-22 11:22 UTC).

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
17900ECDSAP256SHA256 (13)SHA256 DDCD482F5F2D5714…yes

DNSKEY in the zone

Key tagRoleAlgorithm
17900KSK (257)ECDSAP256SHA256 (13)
44363ZSK (256)ECDSAP256SHA256 (13)
26380ZSK (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 17900 (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 11:29 UTC and expires at 2026-10-25 12:29 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

20 records at the apex

Found

Read from
193.108.91.191:53
TypeValueTTL
SOAa1-191.akam.net. domainmanagement.rabobank.nl. 2024220140 7200 600 1209600 6003600
NSa18-65.akam.net.3600
NSa12-64.akam.net.3600
NSa7-64.akam.net.3600
NSa20-66.akam.net.3600
NSa1-191.akam.net.3600
NSa3-67.akam.net.3600
A136.110.206.1663600
MX1 mx2relay.faceworks.nl.3600
MX0 mx1relay.faceworks.nl.3600
MX2 mx3relay.faceworks.nl.3600
TXT"_6dgx4kcx4qc3ifrvg3hw6djwgvuc4o2"3600
TXT"_59wfbgctf73azv4riw81k9euf375hpd"3600
TXT"_20td4efa6ex88t997sjv9s5j2e4fckl"3600
TXT"_rzbiou12wzov6sb2p1tawmb9ryrjiyq"3600
TXT"v=spf1 a mx include:spf.serverbeheer.faceworks.nl -all"3600
CAA0 issue "quovadisglobal.com"3600
CAA0 iodef "mailto:Certificate.Operations@rabobank.com"3600
CAA0 issue "digicert.com"3600
CAA0 issue "sectigo.com"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 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: quovadisglobal.com, digicert.com, sectigo.com.