xxxero.nl

Checked 22 October 2026, 17:20 UTC · via 8.8.8.8
iAll checks passed
27 passed 0 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/xxxero.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/xxxero.nl returned HTTP 429
    #3

Delegation

info

ns.inter-it.nl, ns2.inter-it.nl, ns3.inter-it.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns.inter-it.nl, ns2.inter-it.nl, ns3.inter-it.nl
NS in the zone
ns.inter-it.nl, ns2.inter-it.nl, ns3.inter-it.nl
NameserverAddressesNetwork (AS)Glue
ns.inter-it.nl85.214.154.78 2a01:238:435f:8600:a87e:aa5e:514b:59c9AS6724 STRATO - Strato GmbH, DE AS6724 STRATO - Strato GmbH, DE85.214.154.78 2a01:238:435f:8600:a87e:aa5e:514b:59c9
ns2.inter-it.nl85.214.150.179 2a01:238:4355:7800:2d09:68be:a4dc:ffc5AS6724 STRATO - Strato GmbH, DE AS6724 STRATO - Strato GmbH, DE85.214.150.179 2a01:238:4355:7800:2d09:68be:a4dc:ffc5
ns3.inter-it.nl85.214.213.116 2a01:238:4316:6f00:9f73:49ec:a8a1:53a4AS6724 STRATO - Strato GmbH, DE AS6724 STRATO - Strato GmbH, DE85.214.213.116 2a01:238:4316:6f00:9f73:49ec:a8a1:53a4

Checks

  • ✓ 3 nameservers #6
    Delegated to ns.inter-it.nl, ns2.inter-it.nl, ns3.inter-it.nl.
  • ✓ 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 3 IPv4 /24s and 3 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS6724 (STRATO - Strato GmbH, DE): 6 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 .nl
    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

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.inter-it.nl 85.214.154.78NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns.inter-it.nl 2a01:238:435f:8600:a87e:aa5e:514b:59c9NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.inter-it.nl 85.214.150.179NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.inter-it.nl 2a01:238:4355:7800:2d09:68be:a4dc:ffc5NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns3.inter-it.nl 85.214.213.116NOERROR, 16 ms, authoritativenoyes / yesrefused-
ns3.inter-it.nl 2a01:238:4316:6f00:9f73:49ec:a8a1:53a4NOERROR, 16 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 6 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 2024020707 · primary ns.inter-it.nl

Found

Primary (MNAME)
ns.inter-it.nl
Contact (RNAME)
dns-admin.inter-it.nl
Serial
2024020707
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns.inter-it.nl (85.214.154.78)2024020707
ns.inter-it.nl (2a01:238:435f:8600:a87e:aa5e:514b:59c9)2024020707
ns2.inter-it.nl (85.214.150.179)2024020707
ns2.inter-it.nl (2a01:238:4355:7800:2d09:68be:a4dc:ffc5)2024020707
ns3.inter-it.nl (85.214.213.116)2024020707
ns3.inter-it.nl (2a01:238:4316:6f00:9f73:49ec:a8a1:53a4)2024020707

Checks

  • ✓ Serial 2024020707 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.inter-it.nl is one of the listed nameservers.
  • ✓ Contact dns-admin@inter-it.nl #25
    The SOA RNAME dns-admin.inter-it.nl means dns-admin@inter-it.nl.
  • ✓ Date-based serial #26
    The serial 2024020707 follows the YYYYMMDDnn convention (2024-02-07).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
5 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
11044RSASHA256 (8)SHA256 500DD18666869ADB…yes

DNSKEY in the zone

Key tagRoleAlgorithm
52368ZSK (256)RSASHA256 (8)
11044KSK (257)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 11044 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: RSASHA256 (8).
  • ✓ Signatures valid until 2026-11-05 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

info

8 records at the apex

Found

Read from
85.214.154.78:53
TypeValueTTL
SOAns.inter-it.nl. dns-admin.inter-it.nl. 2024020707 10800 3600 1209600 36003600
NSns3.inter-it.nl.86400
NSns2.inter-it.nl.86400
NSns.inter-it.nl.86400
A85.214.56.2043600
MX20 mx2.inter-it.nl.3600
MX10 mx1.inter-it.nl.3600
TXT"v=spf1 a include:_mx.inter-it.nl ~all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, MX 1h, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; 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.
  • 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