google.nl

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

Registration

info

.nl country-code · MarkMonitor Inc.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
MarkMonitor Inc.
Registered
27 May 1999
Last changed
18 April 2025
Status
active
Registry nameservers
ns1.google.com, ns2.google.com, ns3.google.com, ns4.google.com
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

Delegation

info

looking up the nameservers of nl: DNS query for nl failed: read udp 46.225.38.91:57974->8.8.8.8:53: i/o timeout

Found

NS in the zone
ns1.google.com, ns2.google.com, ns3.google.com, ns4.google.com
NameserverAddressesNetwork (AS)Glue
ns1.google.com (zone only)216.239.32.10 2001:4860:4802:32::aAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-
ns2.google.com (zone only)216.239.34.10 2001:4860:4802:34::aAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-
ns3.google.com (zone only)216.239.36.10 2001:4860:4802:36::aAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-
ns4.google.com (zone only)216.239.38.10 2001:4860:4802:38::aAS15169 GOOGLE - Google LLC, US AS15169 GOOGLE - Google LLC, US-

Checks

  • i
    Could not be checked
    The delegation lookup failed, so this could not be checked: looking up the nameservers of nl: DNS query for nl failed: read udp 46.225.38.91:57974->8.8.8.8:53: i/o timeout
    #6
  • ✓ 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
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.google.com 216.239.32.10NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.google.com 2001:4860:4802:32::aNOERROR, 12 ms, authoritativenoyes / yesrefused-
ns2.google.com 216.239.34.10NOERROR, 24 ms, authoritativenoyes / yesrefused-
ns2.google.com 2001:4860:4802:34::aNOERROR, 24 ms, authoritativenoyes / yesrefused-
ns3.google.com 216.239.36.10NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns3.google.com 2001:4860:4802:36::aNOERROR, 11 ms, authoritativenoyes / yesrefused-
ns4.google.com 216.239.38.10NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns4.google.com 2001:4860:4802:38::aNOERROR, 4 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

warn

serial 1002974787 · primary ns1.google.com

Found

Primary (MNAME)
ns1.google.com
Contact (RNAME)
dns-admin.google.com
Serial
1002974787
Refresh / retry
900 s / 900 s
Expire
1800 s
Negative TTL
60 s

Serial per nameserver

NameserverSerial
ns1.google.com (216.239.32.10)1002974787
ns1.google.com (2001:4860:4802:32::a)1002974787
ns2.google.com (216.239.34.10)1002974787
ns2.google.com (2001:4860:4802:34::a)1002974787
ns3.google.com (216.239.36.10)1002974787
ns3.google.com (2001:4860:4802:36::a)1002974787
ns4.google.com (216.239.38.10)1003797344
ns4.google.com (2001:4860:4802:38::a)1003797344

Checks

  • !
    Serials differ
    The nameservers serve different versions of the zone: 1002974787 on ns1.google.com (216.239.32.10), ns1.google.com (2001:4860:4802:32::a), ns2.google.com (216.239.34.10), ns2.google.com (2001:4860:4802:34::a), ns3.google.com (216.239.36.10), ns3.google.com (2001:4860:4802:36::a); 1003797344 on ns4.google.com (216.239.38.10), ns4.google.com (2001:4860:4802:38::a). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    Unusual SOA timers
    refresh 15m is outside 20m–1d; retry 15m should be shorter than refresh 15m; expire 30m is shorter than 7d; secondaries stop answering too soon when the primary is down; expire 30m must be longer than refresh + retry; negative caching TTL (minimum) 1m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 15m, retry 15m, expire 30m, negative TTL 1m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.google.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.
  • ✓ Timestamp serial #26
    The serial 1002974787 is a Unix timestamp (2001-10-13 12:06 UTC).

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

pass

10 records at the apex

Found

Read from
216.239.32.10:53
TypeValueTTL
SOAns1.google.com. dns-admin.google.com. 1002974787 900 900 1800 6060
NSns3.google.com.345600
NSns2.google.com.345600
NSns1.google.com.345600
NSns4.google.com.345600
A142.251.13.94300
AAAA2a00:1450:4001:c13::5e300
MX0 smtp.google.com.300
TXT"v=spf1 -all"300
CAA0 issue "pki.goog"86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, NS 4d.
  • ✓ 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.