anp.nl

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

Registration

info

.nl country-code

Found

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

Delegation

info

ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com
NS in the zone
ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com
NameserverAddressesNetwork (AS)Glue
ns-cloud-d1.googledomains.com216.239.32.109 2001:4860:4802:32::6dAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-
ns-cloud-d2.googledomains.com216.239.34.109 2001:4860:4802:34::6dAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-
ns-cloud-d3.googledomains.com216.239.36.109 2001:4860:4802:36::6dAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-
ns-cloud-d4.googledomains.com216.239.38.109 2001:4860:4802:38::6dAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-cloud-d1.googledomains.com, ns-cloud-d2.googledomains.com, ns-cloud-d3.googledomains.com, ns-cloud-d4.googledomains.com.
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:4860:4802::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS15169 (GOOGLE - Google LLC, US): 8 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 .com
    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

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-cloud-d1.googledomains.com 216.239.32.109NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns-cloud-d1.googledomains.com 2001:4860:4802:32::6dNOERROR, 11 ms, authoritativenoyes / yesrefused-
ns-cloud-d2.googledomains.com 216.239.34.109NOERROR, 11 ms, authoritativenoyes / yesrefused-
ns-cloud-d2.googledomains.com 2001:4860:4802:34::6dNOERROR, 12 ms, authoritativenoyes / yesrefused-
ns-cloud-d3.googledomains.com 216.239.36.109NOERROR, 41 ms, authoritativenoyes / yesrefused-
ns-cloud-d3.googledomains.com 2001:4860:4802:36::6dNOERROR, 42 ms, authoritativenoyes / yesrefused-
ns-cloud-d4.googledomains.com 216.239.38.109NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns-cloud-d4.googledomains.com 2001:4860:4802:38::6dNOERROR, 13 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 8 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 202609121 · primary ns-cloud-d1.googledomains.com

Found

Primary (MNAME)
ns-cloud-d1.googledomains.com
Contact (RNAME)
dns-admin.google.com
Serial
202609121
Refresh / retry
21600 s / 3600 s
Expire
1209600 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns-cloud-d1.googledomains.com (216.239.32.109)202609121
ns-cloud-d1.googledomains.com (2001:4860:4802:32::6d)202609121
ns-cloud-d2.googledomains.com (216.239.34.109)202609121
ns-cloud-d2.googledomains.com (2001:4860:4802:34::6d)202609121
ns-cloud-d3.googledomains.com (216.239.36.109)202609121
ns-cloud-d3.googledomains.com (2001:4860:4802:36::6d)202609121
ns-cloud-d4.googledomains.com (216.239.38.109)202609121
ns-cloud-d4.googledomains.com (2001:4860:4802:38::6d)202609121

Checks

  • ✓ Serial 202609121 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 6h, retry 1h, expire 14d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-cloud-d1.googledomains.com is one of the listed nameservers.
  • ✓ Contact dns-admin@google.com #25
    The SOA RNAME dns-admin.google.com means dns-admin@google.com.
  • ✓ Counter serial #26
    The serial 202609121 is a plain counter.

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
1 iterations, 8-byte salt
Signatures valid until
9 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
40675RSASHA256 (8)SHA256 D9FF4ED418EFF889…yes

DNSKEY in the zone

Key tagRoleAlgorithm
40675KSK (257)RSASHA256 (8)
41874ZSK (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 40675 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Signatures valid until 2026-11-09 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-09 02:25 UTC.
  • !
    NSEC3 with extra iterations or salt
    NSEC3 uses 1 iteration and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Records

pass

18 records at the apex

Found

Read from
216.239.32.109:53
TypeValueTTL
SOAns-cloud-d1.googledomains.com. dns-admin.google.com. 202609121 21600 3600 1209600 30021600
NSns-cloud-d1.googledomains.com.21600
NSns-cloud-d2.googledomains.com.21600
NSns-cloud-d3.googledomains.com.21600
NSns-cloud-d4.googledomains.com.21600
A35.190.92.21886400
AAAA2600:1901:0:c289::300
MX5 alt1.aspmx.l.google.com.3600
MX1 smtp.google.com.3600
MX5 alt2.aspmx.l.google.com.3600
TXT"v=spf1 include:_spf.google.com include:sendgrid.net include:spf.flowmailer.net include:oracleemaildelivery.com include:emsd1.com include:_spf.atlassian.net ip4:159.183.224.253 ip4:159.183.101.131 ~all"3600
TXT"stripe-verification=27B05EFD375107046F16F62B7A05E33C1F4504840F798CEF9E9439F6C9211953"3600
TXT"atlassian-sending-domain-verification=6d2d7aac-e3da-45cd-913e-940d9bbd729d"3600
TXT"mistral-domain-verification=f312201ef4578d80e91fc07ad033016d68c3ea34"3600
TXT"google-site-verification=43P4N7_d9aUpUjv2sL43ncYcfTwmBdgCqMmEqiUd-A0"3600
CAA0 issue "pki.goog"3600
CAA0 issue "letsencrypt.org"3600
CAA0 iodef "mailto:hostmaster@anp.nl"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, AAAA 5m, MX 1h, NS 6h. The NS TTL at the parent is 1h and in the zone 6h; 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: pki.goog, letsencrypt.org.