techleap.nl

Checked 22 October 2026, 16:30 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 8 info

Registration

info

.nl country-code

Found

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

Delegation

warn

ns1.techleapsrv01.nl, ns2.techleapsrv01.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.techleapsrv01.nl, ns2.techleapsrv01.nl
NS in the zone
ns1.techleapsrv01.nl, ns2.techleapsrv01.nl
NameserverAddressesNetwork (AS)Glue
ns1.techleapsrv01.nl5.22.210.102 2a04:3544:1000:1510:8478:baff:fe90:4b12AS202053 UPCLOUD - UpCloud Ltd, FI AS202053 UPCLOUD - UpCloud Ltd, FI5.22.210.102
ns2.techleapsrv01.nl5.22.210.102 2a04:3544:1000:1510:8478:baff:fe90:4b12AS202053 UPCLOUD - UpCloud Ltd, FI AS202053 UPCLOUD - UpCloud Ltd, FI5.22.210.56

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.techleapsrv01.nl, ns2.techleapsrv01.nl.
    #6
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns1.techleapsrv01.nl (glue 5.22.210.102, zone 5.22.210.102, 2a04:3544:1000:1510:8478:baff:fe90:4b12); ns2.techleapsrv01.nl (glue 5.22.210.56, zone 5.22.210.102, 2a04:3544:1000:1510:8478:baff:fe90:4b12). Update the glue at your registrar.
    #8
  • ✓ All names resolve #9
    Every nameserver name has an address and is not an alias.
  • !
    Nameservers in one network
    all IPv4 addresses are in 5.22.210.0/24; all IPv6 addresses are in 2a04:3544:1000::/48. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS202053 (UPCLOUD - UpCloud Ltd, FI): 4 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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.techleapsrv01.nl 5.22.210.102NOERROR, 10 ms, authoritativenoyes / yesrefusednone
ns1.techleapsrv01.nl 2a04:3544:1000:1510:8478:baff:fe90:4b12NOERROR, 10 ms, authoritativenoyes / yesrefusednone
ns2.techleapsrv01.nl 5.22.210.102NOERROR, 9 ms, authoritativenoyes / yesrefusednone
ns2.techleapsrv01.nl 2a04:3544:1000:1510:8478:baff:fe90:4b12NOERROR, 10 ms, authoritativenoyes / yesrefusednone

Checks

  • ✓ All respond #14
    All 4 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.techleapsrv01.nl: "none"; ns2.techleapsrv01.nl: "none".
    #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 2026102203 · primary ns2.techleapsrv01.nl

Found

Primary (MNAME)
ns2.techleapsrv01.nl
Contact (RNAME)
noreply.techleapsrv01.nl
Serial
2026102203
Refresh / retry
10800 s / 3600 s
Expire
1209600 s
Negative TTL
10800 s

Serial per nameserver

NameserverSerial
ns1.techleapsrv01.nl (5.22.210.102)2026102203
ns1.techleapsrv01.nl (2a04:3544:1000:1510:8478:baff:fe90:4b12)2026102203
ns2.techleapsrv01.nl (5.22.210.102)2026102203
ns2.techleapsrv01.nl (2a04:3544:1000:1510:8478:baff:fe90:4b12)2026102203

Checks

  • ✓ Serial 2026102203 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 14d, negative TTL 3h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns2.techleapsrv01.nl is one of the listed nameservers.
  • ✓ Contact noreply@techleapsrv01.nl #25
    The SOA RNAME noreply.techleapsrv01.nl means noreply@techleapsrv01.nl.
  • ✓ Date-based serial #26
    The serial 2026102203 follows the YYYYMMDDnn convention (2026-10-22).

DNSSEC

warn

Signed, but no DS at parent

Found

Validated by resolver
no
Denial of existence
NSEC
Signatures valid until
19 November 2026

DNSKEY in the zone

Key tagRoleAlgorithm
3542ZSK (256)ECDSAP256SHA256 (13)
49120KSK (257)ECDSAP256SHA256 (13)
53242KSK (257)ECDSAP256SHA256 (13)

Checks

  • !
    Signed but not delegated securely
    The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.
    #27
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-19 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-19 23:39 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

15 records at the apex

Found

Read from
5.22.210.102:53
TypeValueTTL
SOAns2.techleapsrv01.nl. noreply.techleapsrv01.nl. 2026102203 10800 3600 1209600 1080086400
NSns1.techleapsrv01.nl.86400
NSns2.techleapsrv01.nl.86400
A31.43.160.6600
A31.43.161.6600
MX10 alt4.aspmx.l.google.com.86400
MX5 alt1.aspmx.l.google.com.86400
MX5 alt2.aspmx.l.google.com.86400
MX10 alt3.aspmx.l.google.com.86400
MX0 aspmx.l.google.com.86400
TXT"v=spf1 include:_spf.google.com +a +mx +a:techleapsrv01.nl -all"86400
TXT"google-site-verification=IjnCmQV3T4cetzyME2YaedNhFh9CsQMLMFG0n3hqsYA"86400
TXT" v=spf1 include:_spf.google.com ~all"86400
TXT"google-site-verification=CxsVEQkw6DGVODEv46bJRjjQVf9EOA4w24QGOljvcLs"86400
TXT"google-site-verification=DX222B7BGgRHlJkWAeq0lnm7uaLfDhSNtk70LnKvXPU"86400

Checks

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