racer.nl

Checked 22 October 2026, 15:32 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/racer.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/racer.nl returned HTTP 429
    #3

Delegation

pass

ns1.leaseweb.nl, ns4.leaseweb.net, ns5.leaseweb.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.leaseweb.nl, ns4.leaseweb.net, ns5.leaseweb.nl
NS in the zone
ns1.leaseweb.nl, ns4.leaseweb.net, ns5.leaseweb.nl
NameserverAddressesNetwork (AS)Glue
ns1.leaseweb.nl23.19.196.53 2607:f5b5::53AS7203 LEASEWEB-USA-SFO - Leaseweb USA, Inc., US AS28753 LEASEWEB-DE-FRA-10 - Leaseweb Deutschland GmbH, DE23.19.196.53 2607:f5b5::53
ns4.leaseweb.net23.19.196.53 2607:f5b5::53AS7203 LEASEWEB-USA-SFO - Leaseweb USA, Inc., US AS28753 LEASEWEB-DE-FRA-10 - Leaseweb Deutschland GmbH, DE-
ns5.leaseweb.nl23.19.197.53 2607:f5b5:1::53AS7203 LEASEWEB-USA-SFO - Leaseweb USA, Inc., US AS28753 LEASEWEB-DE-FRA-10 - Leaseweb Deutschland GmbH, DE23.19.197.53 2607:f5b5:1::53

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.leaseweb.nl, ns4.leaseweb.net, ns5.leaseweb.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 2 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS28753 (LEASEWEB-DE-FRA-10 - Leaseweb Deutschland GmbH, DE): 3 addresses; AS7203 (LEASEWEB-USA-SFO - Leaseweb USA, Inc., US): 3 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .net, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.leaseweb.nl 23.19.196.53NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns1.leaseweb.nl 2607:f5b5::53NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns4.leaseweb.net 23.19.196.53NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns4.leaseweb.net 2607:f5b5::53NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns5.leaseweb.nl 23.19.197.53NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns5.leaseweb.nl 2607:f5b5:1::53NOERROR, 4 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

info

serial 2017051004 · primary ns0.leaseweb.nl

Found

Primary (MNAME)
ns0.leaseweb.nl
Contact (RNAME)
postmaster.leaseweb.nl
Serial
2017051004
Refresh / retry
14400 s / 7200 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns1.leaseweb.nl (23.19.196.53)2017051004
ns1.leaseweb.nl (2607:f5b5::53)2017051004
ns4.leaseweb.net (23.19.196.53)2017051004
ns4.leaseweb.net (2607:f5b5::53)2017051004
ns5.leaseweb.nl (23.19.197.53)2017051004
ns5.leaseweb.nl (2607:f5b5:1::53)2017051004

Checks

  • ✓ Serial 2017051004 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 2h, expire 7d, negative TTL 1d.
  • i
    Hidden master
    The primary nameserver ns0.leaseweb.nl is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.
    #24
  • ✓ Contact postmaster@leaseweb.nl #25
    The SOA RNAME postmaster.leaseweb.nl means postmaster@leaseweb.nl.
  • ✓ Date-based serial #26
    The serial 2017051004 follows the YYYYMMDDnn convention (2017-05-10).

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
51661ECDSAP256SHA256 (13)SHA256 782EB1E6AC5B170D…yes

DNSKEY in the zone

Key tagRoleAlgorithm
51661KSK (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 51661 (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

6 records at the apex

Found

Read from
23.19.196.53:53
TypeValueTTL
SOAns0.leaseweb.nl. Postmaster.leaseweb.nl. 2017051004 14400 7200 604800 8640086400
NSns1.leaseweb.nl.86400
NSns4.leaseweb.net.86400
NSns5.leaseweb.nl.86400
A162.215.121.10686400
MX10 mail.racer.nl.86400

Checks

  • ✓ TTLs within range #32
    TTLs: A 1d, MX 1d, 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