catawiki.nl

Checked 21 October 2026, 21:00 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 warnings 0 failed 6 info

Registration

info

.nl country-code

Found

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

Delegation

info

a1-5.akam.net, a11-66.akam.net, a22-67.akam.net, a4-64.akam.net, a7-65.akam.net, a8-66.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-5.akam.net, a11-66.akam.net, a22-67.akam.net, a4-64.akam.net, a7-65.akam.net, a8-66.akam.net
NS in the zone
a1-5.akam.net, a11-66.akam.net, a22-67.akam.net, a4-64.akam.net, a7-65.akam.net, a8-66.akam.net
NameserverAddressesNetwork (AS)Glue
a1-5.akam.net193.108.91.5 2600:1401:2::5AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-66.akam.net84.53.139.66 2600:1480:1::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a22-67.akam.net23.211.61.67 2600:1480:7800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a4-64.akam.net72.246.46.64 2600:1480:9000::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a7-65.akam.net23.61.199.65 2600:1406:32::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a8-66.akam.net2.16.40.66 2600:1403:a::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-5.akam.net, a11-66.akam.net, a22-67.akam.net, a4-64.akam.net, a7-65.akam.net, a8-66.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
a1-5.akam.net 193.108.91.5NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a1-5.akam.net 2600:1401:2::5NOERROR, 5 ms, authoritativenoyes / yesrefused41824.9
a11-66.akam.net 84.53.139.66NOERROR, 3 ms, authoritativenoyes / yesrefused41824.8
a11-66.akam.net 2600:1480:1::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.7
a22-67.akam.net 23.211.61.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a22-67.akam.net 2600:1480:7800::43NOERROR, 5 ms, authoritativenoyes / yesrefused48878.30
a4-64.akam.net 72.246.46.64NOERROR, 3 ms, authoritativenoyes / yesrefused48878.27
a4-64.akam.net 2600:1480:9000::40NOERROR, 3 ms, authoritativenoyes / yesrefused48878.27
a7-65.akam.net 23.61.199.65NOERROR, 3 ms, authoritativenoyes / yesrefused41824.7
a7-65.akam.net 2600:1406:32::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.9
a8-66.akam.net 2.16.40.66NOERROR, 6 ms, authoritativenoyes / yesrefused48878.27
a8-66.akam.net 2600:1403:a::42NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27

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: a1-5.akam.net: "41824.4"; a1-5.akam.net: "41824.9"; a11-66.akam.net: "41824.8"; a11-66.akam.net: "41824.7"; a22-67.akam.net: "48878.29"; a22-67.akam.net: "48878.30"; a4-64.akam.net: "48878.27"; a7-65.akam.net: "41824.7"; a7-65.akam.net: "41824.9"; a8-66.akam.net: "48878.27". 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 2026030415 · primary a1-5.akam.net

Found

Primary (MNAME)
a1-5.akam.net
Contact (RNAME)
hostmaster.akamai.com
Serial
2026030415
Refresh / retry
86400 s / 7200 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
a1-5.akam.net (193.108.91.5)2026030415
a1-5.akam.net (2600:1401:2::5)2026030415
a11-66.akam.net (84.53.139.66)2026030415
a11-66.akam.net (2600:1480:1::42)2026030415
a22-67.akam.net (23.211.61.67)2026030415
a22-67.akam.net (2600:1480:7800::43)2026030415
a4-64.akam.net (72.246.46.64)2026030415
a4-64.akam.net (2600:1480:9000::40)2026030415
a7-65.akam.net (23.61.199.65)2026030415
a7-65.akam.net (2600:1406:32::41)2026030415
a8-66.akam.net (2.16.40.66)2026030415
a8-66.akam.net (2600:1403:a::42)2026030415

Checks

  • ✓ Serial 2026030415 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 2h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-5.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@akamai.com #25
    The SOA RNAME hostmaster.akamai.com means hostmaster@akamai.com.
  • ✓ Date-based serial #26
    The serial 2026030415 follows the YYYYMMDDnn convention (2026-03-04).

DNSSEC

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

warn

39 records at the apex

Found

Read from
193.108.91.5:53
TypeValueTTL
SOAa1-5.akam.net. hostmaster.akamai.com. 2026030415 86400 7200 604800 36003600
NSa7-65.akam.net.86400
NSa22-67.akam.net.86400
NSa1-5.akam.net.86400
NSa4-64.akam.net.86400
NSa11-66.akam.net.86400
NSa8-66.akam.net.86400
A2.16.183.1120
A2.16.183.1020
AAAA2a02:26f0:b700:18::210:ccc520
AAAA2a02:26f0:b700:18::210:ccd320
MX10 aspmx.l.google.com.86400
MX20 alt2.aspmx.l.google.com.86400
MX30 aspmx5.googlemail.com.86400
MX20 alt1.aspmx.l.google.com.86400
MX30 aspmx3.googlemail.com.86400
MX30 aspmx4.googlemail.com.86400
MX30 aspmx2.googlemail.com.86400
TXT"miro-verification=30f2c15661788a6593d4b5dd649b8e23efffdda3"900
TXT"google-site-verification=VwsyZ6qVa_I3nucQFqiTL4JiHWflpmofZ09STWA0pRw"900
TXT"openai-domain-verification=dv-S3a2Vrsp7x1x0AYmhGzmWwhy"900
TXT"stripe-verification=6db88617930d3b7732cf787fde8daa04181aee7b48e895da89d2061e6489e68f"900
TXT"apple-domain-verification=PVx0tYba2LYMERW4"900
TXT"dropbox-domain-verification=bz98i8mgocr3"900
TXT"openai-domain-verification=dv-BbByo5uSW0lgs7SKFXAShgAg"900
TXT"sprout-social-869fc200-e21c-40fd-91ac-1ffbf1bb34cf"900
TXT"gamma-domain-verification-3g867j=p3ObWiHg9FumLlnZBJI5puZQo"900
TXT"v=spf1 include:_spf.google.com include:servers.mcsv.net -all"900
TXT"ZsEDNqcr03e7DtcZN0E7xBUNZZ8Gtm4"900
TXT"docusign=b150a0f7-8f8a-4bc5-9b0a-f8bbdf9a5b1a"900
TXT"google-site-verification=dlmqMkALgpWMg0GPFjZ87QSu0Fhk8ORCNStkKA3IhW4"900
TXT"vertexinc-cloud-f9ce2ccb-4f60-49b6-9bd1-041e15047e3d"900
TXT"amazon-business-verification=37c4a299d5ae455a08da0a0ae11e511538e60151629b35edbc0dedb3bad3db9a"900
TXT"MS=ms12300195"900
TXT"docusign=61be331d-9556-4b05-a932-8f58e3fdc611"900
TXT"atlassian-domain-verification=BCWFfva/tEKIHNsfgzaxud3MB0FzbvCA2BcnE4pgWPvOZLK/20J+Igh6zK1l/mdu"900
TXT"facebook-domain-verification=cm9sklsew1ubjw3kndflp38q9v7dcv"900
TXT"jamf-site-verification=6wYCa9-RW0PUdoQUQdU4xg"900
TXT"MS=1F96278DB4348C33142394F67AC2CA00E1F33C58"900

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 1d; resolvers may use either.
    #32
  • ✓ 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