amsterdam.nl

Checked 21 October 2026, 20:45 UTC · via 8.8.8.8
!Passed with warnings
29 passed 1 warning 0 failed 5 info

Registration

info

.nl country-code · KPN B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
KPN B.V.
Registered
25 January 1994
Last changed
21 November 2025
Status
active
Registry nameservers
a1-140.akam.net, a11-64.akam.net, a12-67.akam.net, a26-65.akam.net, a5-65.akam.net, a6-64.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

a1-140.akam.net, a11-64.akam.net, a12-67.akam.net, a26-65.akam.net, a5-65.akam.net, a6-64.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-140.akam.net, a11-64.akam.net, a12-67.akam.net, a26-65.akam.net, a5-65.akam.net, a6-64.akam.net
NS in the zone
a1-140.akam.net, a11-64.akam.net, a12-67.akam.net, a26-65.akam.net, a5-65.akam.net, a6-64.akam.net
NameserverAddressesNetwork (AS)Glue
a1-140.akam.net193.108.91.140 2600:1401:2::8cAS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a11-64.akam.net84.53.139.64 2600:1480:1::40AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a12-67.akam.net184.26.160.67 2600:1480:f000::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a26-65.akam.net23.74.25.65 2600:1480:b800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a5-65.akam.net95.100.168.65 2600:1480:b000::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a6-64.akam.net23.211.133.64 2600:1401:1::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 6 nameservers #6
    Delegated to a1-140.akam.net, a11-64.akam.net, a12-67.akam.net, a26-65.akam.net, a5-65.akam.net, a6-64.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
a1-140.akam.net 193.108.91.140NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a1-140.akam.net 2600:1401:2::8cNOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a11-64.akam.net 84.53.139.64NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a11-64.akam.net 2600:1480:1::40NOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a12-67.akam.net 184.26.160.67NOERROR, 3 ms, authoritativenoyes / yesrefused48878.27
a12-67.akam.net 2600:1480:f000::43NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a26-65.akam.net 23.74.25.65NOERROR, 4 ms, authoritativenoyes / yesrefused48878.27
a26-65.akam.net 2600:1480:b800::41NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a5-65.akam.net 95.100.168.65NOERROR, 5 ms, authoritativenoyes / yesrefused41824.5
a5-65.akam.net 2600:1480:b000::41NOERROR, 4 ms, authoritativenoyes / yesrefused41824.5
a6-64.akam.net 23.211.133.64NOERROR, 5 ms, authoritativenoyes / yesrefused48878.26
a6-64.akam.net 2600:1401:1::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30

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: a1-140.akam.net: "41824.10"; a11-64.akam.net: "41824.10"; a12-67.akam.net: "48878.27"; a26-65.akam.net: "48878.27"; a26-65.akam.net: "48878.30"; a5-65.akam.net: "41824.5"; a6-64.akam.net: "48878.26"; a6-64.akam.net: "48878.30". 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 2021022794 · primary a1-140.akam.net

Found

Primary (MNAME)
a1-140.akam.net
Contact (RNAME)
servicedesk.motiv.nl
Serial
2021022794
Refresh / retry
3600 s / 600 s
Expire
6048000 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
a1-140.akam.net (193.108.91.140)2021022794
a1-140.akam.net (2600:1401:2::8c)2021022794
a11-64.akam.net (84.53.139.64)2021022794
a11-64.akam.net (2600:1480:1::40)2021022794
a12-67.akam.net (184.26.160.67)2021022794
a12-67.akam.net (2600:1480:f000::43)2021022794
a26-65.akam.net (23.74.25.65)2021022794
a26-65.akam.net (2600:1480:b800::41)2021022794
a5-65.akam.net (95.100.168.65)2021022794
a5-65.akam.net (2600:1480:b000::41)2021022794
a6-64.akam.net (23.211.133.64)2021022794
a6-64.akam.net (2600:1401:1::40)2021022794

Checks

  • ✓ Serial 2021022794 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1h, retry 10m, expire 70d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-140.akam.net is one of the listed nameservers.
  • ✓ Contact servicedesk@motiv.nl #25
    The SOA RNAME servicedesk.motiv.nl means servicedesk@motiv.nl.
  • ✓ Date-based serial #26
    The serial 2021022794 follows the YYYYMMDDnn convention (2021-02-27).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
24 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
46588ECDSAP256SHA256 (13)SHA256 034413251B18255F…NO
33513ECDSAP256SHA256 (13)SHA256 300FBDB83E8B1337…yes

DNSKEY in the zone

Key tagRoleAlgorithm
33513KSK (257)ECDSAP256SHA256 (13)
48046KSK (257)ECDSAP256SHA256 (13)
11229ZSK (256)ECDSAP256SHA256 (13)
4599ZSK (256)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • i
    Unused DS records
    These DS records match no key in the zone: key tag 46588 (SHA256). That is normal during a key rollover; otherwise remove them.
    #28
  • ✓ 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 2026-10-21 05:32 UTC and expires at 2026-10-24 06:32 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

pass

29 records at the apex

Found

Read from
193.108.91.140:53
TypeValueTTL
SOAa1-140.akam.net. servicedesk.motiv.nl. 2021022794 3600 600 6048000 3007200
NSa6-64.akam.net.28800
NSa26-65.akam.net.28800
NSa12-67.akam.net.28800
NSa11-64.akam.net.28800
NSa5-65.akam.net.28800
NSa1-140.akam.net.28800
A46.17.24.11028800
AAAA2a07:3500:1020:f524::1101800
MX10 amsterdam-nl.mail.protection.outlook.com.300
TXT"mentimeter-041cc667-63ba-40bb-925b-293467a456b1"300
TXT"citrix.mobile.ads.otp=7pm0oj2y16w4swyqtl4ic1kf"300
TXT"atlassian-domain-verification=7I2cIAvKdaSHJNLh4QYqmiTYhV6q0ToGQFl0udY3dJ3e9HWfR9bennVx0262KfDc"300
TXT"MS=ms84701224"300
TXT"apple-domain-verification=ti4QgfxJN4w8DX8i"300
TXT"miro-verification=373eb17fd1f9f1ba27b45374743ed471c8d7fe1b"300
TXT"bastion365-domain-validation=c06fadbadcd7f"300
TXT"Qj2tkDaGTzCRPy0cyuSWtLRpo1WrnY7/28HLV4lbuFmZxASAYnwMZLXLOQp4S49RDgCPUgE9cqeNEGKufRkNxw=="300
TXT"_pza9l9gur84ae1cx5tqjgvqyku3hat5"300
TXT"google-site-verification=4pYtPO7Wu2rE9_hcFFvwS4z-MRKGS6Uyl7uK3dcxQ9Q"300
TXT"_my1s34t4qpbyl8o5xnjwwd7l3c7utcz"300
TXT"v=NTA7516-1;startdate=2019-06;enddate=2029-09;provider=bastionic;ntamx=10 mx.bastion365.net"300
TXT"_jadf9mphzzz375k2qeldxsgqw21frju"300
TXT"Dynatrace-site-verification=668cd01d-12d5-4ac9-b1a4-dc1aa2dc5402__grmi7ocvkd0jlp9ihpoaenofu1"300
TXT"v=spf1 ip4:81.30.47.97 ip4:37.17.212.82 include:_spf2.amsterdam.nl include:_spf.iprox.nl include:_spf.zorgmail.nl include:spf.protection.outlook.com include:_spf.mail.services.bastion365.net -all"300
TXT"netlify-challenge=3f2c1f070e0b0e21aeb10884ff4a1699"300
CAA0 issuewild "digicert.com"1800
CAA0 issue "digicert.com"1800
CAA0 issue "quovadisglobal.com"1800

Checks

  • ✓ TTLs within range #32
    TTLs: A 8h, AAAA 30m, MX 5m, NS 8h. The NS TTL at the parent is 1h and in the zone 8h; 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.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, quovadisglobal.com.