ns.nl

Checked 21 October 2026, 21:23 UTC · via 8.8.8.8
!Passed with warnings
26 passed 3 warnings 0 failed 6 info

Registration

info

.nl country-code · Realtime Register

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Realtime Register
Registered
2 December 1991
Last changed
26 August 2025
Status
active
Registry nameservers
a1-139.akam.net, a11-66.akam.net, a13-67.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

warn

a1-139.akam.net, a11-66.akam.net, a13-67.akam.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
a1-139.akam.net, a11-66.akam.net, a13-67.akam.net
NS in the zone
a1-139.akam.net, a11-66.akam.net, a13-67.akam.net, a20-64.akam.net, a24-65.akam.net, a26-66.akam.net
NameserverAddressesNetwork (AS)Glue
a1-139.akam.net193.108.91.139 2600:1401:2::8bAS21342 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::42AS20940 AKAMAI-ASN1 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a13-67.akam.net2.22.230.67 2600:1480:800::43AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a20-64.akam.net (zone only)95.100.175.64 2a02:26f0:67::40AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a24-65.akam.net (zone only)2.16.130.65 2600:1480:9800::41AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-
a26-66.akam.net (zone only)23.74.25.66 2600:1480:b800::42AS21342 AKAMAI-ASN2 - Akamai International B.V., NL AS21342 AKAMAI-ASN2 - Akamai International B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to a1-139.akam.net, a11-66.akam.net, a13-67.akam.net.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only in the zone: a20-64.akam.net, a24-65.akam.net, a26-66.akam.net. a1-139.akam.net, a11-66.akam.net, a13-67.akam.net, a20-64.akam.net, a24-65.akam.net, a26-66.akam.net report NS a1-139.akam.net a11-66.akam.net a13-67.akam.net a20-64.akam.net a24-65.akam.net a26-66.akam.net.
    #7
  • ✓ 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
a1-139.akam.net 193.108.91.139NOERROR, 3 ms, authoritativenoyes / yesrefused41824.10
a1-139.akam.net 2600:1401:2::8bNOERROR, 4 ms, authoritativenoyes / yesrefused41824.10
a11-66.akam.net 84.53.139.66NOERROR, 5 ms, authoritativenoyes / yesrefused41824.7
a11-66.akam.net 2600:1480:1::42NOERROR, 4 ms, authoritativenoyes / yesrefused41824.4
a13-67.akam.net 2.22.230.67NOERROR, 4 ms, authoritativenoyes / yesrefused41824.11
a13-67.akam.net 2600:1480:800::43NOERROR, 4 ms, authoritativenoyes / yesrefused41824.6
a20-64.akam.net 95.100.175.64NOERROR, 5 ms, authoritativenoyes / yesrefused48878.31
a20-64.akam.net 2a02:26f0:67::40NOERROR, 4 ms, authoritativenoyes / yesrefused48878.30
a24-65.akam.net 2.16.130.65NOERROR, 3 ms, authoritativenoyes / yesrefused48878.29
a24-65.akam.net 2600:1480:9800::41NOERROR, 5 ms, authoritativenoyes / yesrefused48878.30
a26-66.akam.net 23.74.25.66NOERROR, 4 ms, authoritativenoyes / yesrefused48878.32
a26-66.akam.net 2600:1480:b800::42NOERROR, 3 ms, authoritativenoyes / yesrefused48878.33

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: a1-139.akam.net: "41824.10"; a11-66.akam.net: "41824.7"; a11-66.akam.net: "41824.4"; a13-67.akam.net: "41824.11"; a13-67.akam.net: "41824.6"; a20-64.akam.net: "48878.31"; a20-64.akam.net: "48878.30"; a24-65.akam.net: "48878.29"; a24-65.akam.net: "48878.30"; a26-66.akam.net: "48878.32"; a26-66.akam.net: "48878.33". 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 1562577372 · primary a1-139.akam.net

Found

Primary (MNAME)
a1-139.akam.net
Contact (RNAME)
hostmaster.akamai.com
Serial
1562577372
Refresh / retry
43200 s / 7200 s
Expire
604800 s
Negative TTL
7200 s

Serial per nameserver

NameserverSerial
a1-139.akam.net (193.108.91.139)1562577372
a1-139.akam.net (2600:1401:2::8b)1562577372
a11-66.akam.net (84.53.139.66)1562577372
a11-66.akam.net (2600:1480:1::42)1562577372
a13-67.akam.net (2.22.230.67)1562577372
a13-67.akam.net (2600:1480:800::43)1562577372
a20-64.akam.net (95.100.175.64)1562577372
a20-64.akam.net (2a02:26f0:67::40)1562577372
a24-65.akam.net (2.16.130.65)1562577372
a24-65.akam.net (2600:1480:9800::41)1562577372
a26-66.akam.net (23.74.25.66)1562577372
a26-66.akam.net (2600:1480:b800::42)1562577372

Checks

  • ✓ Serial 1562577372 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 12h, retry 2h, expire 7d, negative TTL 2h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver a1-139.akam.net is one of the listed nameservers.
  • ✓ Contact hostmaster@akamai.com #25
    The SOA RNAME hostmaster.akamai.com means hostmaster@akamai.com.
  • ✓ Timestamp serial #26
    The serial 1562577372 is a Unix timestamp (2019-07-08 09:16 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
24 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
22837RSASHA256 (8)SHA256 90139615DF86144A…yes

DNSKEY in the zone

Key tagRoleAlgorithm
7014ZSK (256)RSASHA256 (8)
51757KSK (257)RSASHA256 (8)
22837KSK (257)RSASHA256 (8)
60084ZSK (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 22837 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 73h0m0s and created on demand; the current one was made at 2026-10-21 15:58 UTC and expires at 2026-10-24 16:58 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

warn

55 records at the apex

Found

Read from
193.108.91.139:53
TypeValueTTL
SOAa1-139.akam.net. hostmaster.akamai.com. 1562577372 43200 7200 604800 72007200
NSa13-67.akam.net.86400
NSa26-66.akam.net.86400
NSa20-64.akam.net.86400
NSa1-139.akam.net.86400
NSa11-66.akam.net.86400
NSa24-65.akam.net.86400
A104.82.108.4220
MX10 ns-nl.k-v1.mx.microsoft.300
TXT"_ivvdna5yusuj9e4dyt26kskxe1j6f0i"300
TXT"F0c5IqMT2mvBk9NSqmxQJXGYQDuPusbrrI1BBV63BRKJV10JhhaNtcHwNGTeRXls"300
TXT"MS=ms92438107"300
TXT"apple-domain-verification=PlBTz6RpcHoOmGtP"300
TXT"infor-cloudsuite-domain-verification=BRRBXQS6R2VYTT577QYQVTGXTKNJLAP6YW98WSC97HHG84YDA4ELSRMXCS7NMBYR"300
TXT"ms-domain-verification=5bce27df-3346-4b6a-be3f-245a8ef010ac"300
TXT"paloaltonetworks-site-verification=db053ba1fec1893d9ab2d3a6d311dcb3606f2b66d9550e2d28564dbd2ca67e44"300
TXT"successfactors-site-verification=MzU0MTZmNWEyMmJmZGNjZTVmN2UyODE4ZTdmNGM5NTFmMmFjNTFhNDczOGQ4NmViOTM0Y2YyMTc0ZDYwMTg3YQ=="300
TXT"m9llbTX6IdPPx9novtFl6afoRPsdGs9wzqv7SB6IBE0yWL7Y965LVCseWMzRm7Bj"300
TXT"wsYuXgBChPuJpjvMMucZHcFJ8GLjds3GENAhDHlmqgoDrnJv35sntf3D0JNbHCiU"300
TXT"oFVm1FXNhxmiNFbVSZqJisRnLgvI00AktQmMMXUQIi9cpEBIJuMFi6AaVq6aOy9L"300
TXT"pAqmaVRTb5256bM34zGk7j4OEgdpweBN6NOccaA3qrm7l5WM5QcTE7S5PDLG0tHg"300
TXT"mongodb-site-verification=RUKau8OM1FAAKxVx5QXuUFnOByICnmYf"300
TXT"qSCh3jbbpCgClI2emuSQYOTyXNHc7cHcyCjK5oSSloM3cbP3pjXYUv2nFkt9vSnX"300
TXT"ojgYhh4HpUcL45pk2eWhvH8cYXakajUsI4wfU0ErCYuVdhRVsGplxpEnhqjrAXa9"300
TXT"v=spf1 include:_spf-a.ns.nl include:_spf-b.ns.nl include:spf.protection.outlook.com include:sendgrid.net include:_spf.mail.services.bastion365.net include:servers.mcsv.net exists:%{i}._spf.mta.salesforce.com -all"300
TXT"_89c8yq4qmc57wyvgd0sjrdyr3j7vlx3"300
TXT"miro-verification=8551a82c0178fdebcceb67995d77071cf66befd1"300
TXT"successfactors-site-verification=N2NjMjQ5MzYwMDliNTQ4YWY5NDE4MmU4MGZjOTg0OTljNjFjNjIyZGFjMTkwMjczYmJjNzVkOGM5ZjlmZjUyMA=="300
TXT"E1u83qzVH3Kr7vCrb9JWNaNwgZ2Y5dk2TuBzWxGfAWyjnW4IeHjg5UAU1v78DTXB"300
TXT"atlassian-sending-domain-verification=ea254605-df94-426e-a89f-f01ad21237f7"300
TXT"LvCOGBVi4lRQCssn+e1UZ4zqfkwbmFpuOBX+reGlzDnzvT7nPnCDMEv62ixbDb5dDLMMRAhDGG3MYOm/q8NJ6Q=="300
TXT"VuduVwNFdvRkNkOPRuXFG58k7dYN9I6WArInFJOnQ9ET8P7diXI19q62Hcj4fSCN"300
TXT"jamf-site-verification=vUtgUMKvmeLw5G8NMUsiUw"300
TXT"_4ozf7u7erb5ldpeksx9kls4i3iawsfi"300
TXT"autodesk-domain-verification=fxFeoYAgQVrEL7BLYYA7"300
TXT"xJL1Yjbp+pCuxlF2JjvA3F5fLzopBVqVNh6oPyyDGY1ioDu/Vmvi1gfOk0vOBHEMBbiYJUZj4N97UTQXoB91hQ=="300
TXT"jUj3CxwSNxzT08Ffrba6PkjrWptG0rk55EX2MLnD6HFxVRqRHVBCuoegkMILYQWR"300
TXT"figma-domain-verification=0196bdab2d02d3601989977f303a6e14dd8a87e53111d0406a5cfd479961aae5-1733732268"300
TXT"flexera-domain-verification-pqcrjvkrstmzzzmh"300
TXT"zC2GuVjZL4zgMdxa1DpV0iHqHmTpss2P2Lxxmwu5MhkBWl3NLMT7VYQiYU7VokPM"300
TXT"_e9ctumc7htlncecivlngilknrqnia42"300
TXT"teneo-domain-verifier=f305ec98-d72f-4919-a741-113cc03168c7"300
TXT"_azi64opa06yumrp8tua4f3pakao7x68"300
TXT"google-site-verification=vpGSD25f266M-I4BHBEU66QCfzQ0thAMsauepBa8Lxg"300
TXT"hv59+nag5FDmrm4RJXZARMNHH9MqIE06B0ycZ25SUpm1PevVfN/gtkm4v9wuw4te7IsrTs5NfXVOAHjlyzyk4w=="300
TXT"bastion365-domain-validation=61c015ba54638"300
TXT"FJUnsVkDnRMo8gGsiQ7qKhYqOFjI3yIuYVcGC4SfbC5RMgT3fRPKUnFuqf7uu59m"300
TXT"v=NTA7516-1;startdate=2019-06;enddate=2029-09;provider=bastionic;ntamx=10 mx.bastion365.net"300
TXT"_5zc1hmet6rr7holyy6th5w0bmrr7xd8"300
TXT"ms-domain-verification=41db3e21-5734-438c-a229-3c0e7421f24c"300
TXT"_mh7ams86a2cxurl12cd3rzkuu2u0k0j"300
TXT"hhoeZjhuIdbgyMiIv5tbaAHxJCnDNXvgnkNYmDStwGNOdCKREDxvna63TLRMhMK7"300
TXT"yEZPZNUvuBFfSIv2Ep7pPSGqk6JBMfABYFYBx9wb2GnF54FfU0QYQMwTJJrM4v8t"300
TXT"ITdzQDpySZnqIc73iGSfonXnGfHQEzI0SHPVLGwxuIx42L94bfx97oip0Uqvd0HM"300
TXT"atlassian-domain-verification=4EmMyP4dxmWb0pplAGakXHr/DMaftKTZRYUOcUeP3y9YXrB6Uzkbr3Ta5H5PJBIa"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (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