onlineafspraken.nl

Checked 22 October 2026, 15:01 UTC · via 8.8.8.8
iAll checks passed
24 passed 0 warnings 0 failed 9 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns1.2fast.nl, ns2.2fast.nl, ns3.2fast.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.2fast.nl, ns2.2fast.nl, ns3.2fast.nl
NS in the zone
ns1.2fast.nl, ns2.2fast.nl, ns3.2fast.nl
NameserverAddressesNetwork (AS)Glue
ns1.2fast.nl213.193.210.2 2001:9a8:0:10::2AS15703 TrueServer-AS - TrueFullstaq B.V., NL AS15703 TrueServer-AS - TrueFullstaq B.V., NL-
ns2.2fast.nl193.28.152.2 2001:9a8:0:11::2AS15703 TrueServer-AS - TrueFullstaq B.V., NL AS15703 TrueServer-AS - TrueFullstaq B.V., NL-
ns3.2fast.nl213.239.136.2 2001:9a8:0:12::2AS15703 TrueServer-AS - TrueFullstaq B.V., NL AS15703 TrueServer-AS - TrueFullstaq B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.2fast.nl, ns2.2fast.nl, ns3.2fast.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.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:9a8::/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 (AS15703 (TrueServer-AS - TrueFullstaq B.V., NL): 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

info

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.2fast.nl 213.193.210.2NOERROR, 20 ms, authoritativenoyes / yesrefusedTrueFullstaq B.V. - Authoritative Nameserver
ns1.2fast.nl 2001:9a8:0:10::2NOERROR, 19 ms, authoritativenoyes / yesrefusedTrueFullstaq B.V. - Authoritative Nameserver
ns2.2fast.nl 193.28.152.2NOERROR, 17 ms, authoritativenoyes / yesrefusedTrueFullstaq B.V. - Authoritative Nameserver
ns2.2fast.nl 2001:9a8:0:11::2NOERROR, 17 ms, authoritativenoyes / yesrefusedTrueFullstaq B.V. - Authoritative Nameserver
ns3.2fast.nl 213.239.136.2NOERROR, 19 ms, authoritativenoyes / yesrefusedTrueFullstaq B.V. - Authoritative Nameserver
ns3.2fast.nl 2001:9a8:0:12::2NOERROR, 19 ms, authoritativenoyes / yesrefusedTrueFullstaq B.V. - Authoritative Nameserver

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.2fast.nl: "TrueFullstaq B.V. - Authoritative Nameserver"; ns2.2fast.nl: "TrueFullstaq B.V. - Authoritative Nameserver"; ns3.2fast.nl: "TrueFullstaq B.V. - Authoritative Nameserver".
    #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 2018110991 · primary ns1.2fast.nl

Found

Primary (MNAME)
ns1.2fast.nl
Contact (RNAME)
hostmaster.2fast.nl
Serial
2018110991
Refresh / retry
14400 s / 3600 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.2fast.nl (213.193.210.2)2018110991
ns1.2fast.nl (2001:9a8:0:10::2)2018110991
ns2.2fast.nl (193.28.152.2)2018110991
ns2.2fast.nl (2001:9a8:0:11::2)2018110991
ns3.2fast.nl (213.239.136.2)2018110991
ns3.2fast.nl (2001:9a8:0:12::2)2018110991

Checks

  • ✓ Serial 2018110991 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.2fast.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@2fast.nl #25
    The SOA RNAME hostmaster.2fast.nl means hostmaster@2fast.nl.
  • ✓ Date-based serial #26
    The serial 2018110991 follows the YYYYMMDDnn convention (2018-11-09).

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
4400ECDSAP256SHA256 (13)SHA256 ABE60BFBCE11E166…yes

DNSKEY in the zone

Key tagRoleAlgorithm
4400KSK (257)ECDSAP256SHA256 (13)

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 4400 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ 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

10 records at the apex

Found

Read from
213.193.210.2:53
TypeValueTTL
SOAns1.2fast.nl. hostmaster.2fast.nl. 2018110991 14400 3600 604800 8640086400
NSns1.2fast.nl.86400
NSns3.2fast.nl.86400
NSns2.2fast.nl.86400
A87.233.177.4300
AAAA2001:9a8:b4:1::177:10300
MX20 mail1.onlineafspraken.nl.600
MX10 mail2.onlineafspraken.nl.600
TXT"google-site-verification=kzc-FRbVacm475nAHUkET1hZSiS7zHeTiHWvCwngOtI"60
TXT"v=spf1 a mx ip4:188.202.161.156/32 ip4:87.233.177.0/28 ip4:87.233.84.248/29 ip6:2001:9a8:b4::/64 ip6:2001:9a8:b4:1::/64 ~all"60

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 10m, 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.
  • 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