nvab-online.nl

Checked 22 October 2026, 15:01 UTC · via 8.8.8.8
✗Problems found
18 passed 5 warnings 1 failed 5 info

Registration

info

.nl country-code

Found

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

Delegation

warn

ns1.dehostingleverancier.nl, ns2.dehostingleverancier.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.dehostingleverancier.nl, ns2.dehostingleverancier.nl
NS in the zone
ns1.hosted-power.com, ns2.hosted-power.com
NameserverAddressesNetwork (AS)Glue
ns1.dehostingleverancier.nl (parent only)185.21.191.195 2a02:348:a3:bfc3::1AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL185.21.191.195 2a02:348:a3:bfc3::1
ns1.hosted-power.com (zone only)31.3.98.171 2a02:348:70:62ab::1AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL-
ns2.dehostingleverancier.nl (parent only)178.18.83.206 2a02:348:56:53ce::1AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL178.18.83.206 2a02:348:56:53ce::1
ns2.hosted-power.com (zone only)94.237.94.82 2a04:3542:1000:910:3cc8:64ff:fefa:985AS202053 UPCLOUD - UpCloud Ltd, FI AS202053 UPCLOUD - UpCloud Ltd, FI-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.dehostingleverancier.nl, ns2.dehostingleverancier.nl.
    #6
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns1.dehostingleverancier.nl, ns2.dehostingleverancier.nl; only in the zone: ns1.hosted-power.com, ns2.hosted-power.com. ns1.dehostingleverancier.nl, ns1.hosted-power.com, ns2.dehostingleverancier.nl, ns2.hosted-power.com report NS ns1.hosted-power.com ns2.hosted-power.com.
    #7
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS202053 (UPCLOUD - UpCloud Ltd, FI): 2 addresses; AS20857 (TRANSIP-AS - Signet B.V., NL): 6 addresses.
  • 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

fail

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.dehostingleverancier.nl 185.21.191.195NOERROR, 13 ms, authoritativenoyes / yesALLOWED (63 records)9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.9
ns1.dehostingleverancier.nl 2a02:348:a3:bfc3::1NOERROR, 13 ms, authoritativenoyes / yesALLOWED (63 records)9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.9
ns1.hosted-power.com 31.3.98.171NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.hosted-power.com 2a02:348:70:62ab::1NOERROR, 14 ms, authoritativenoyes / yesrefused-
ns2.dehostingleverancier.nl 178.18.83.206NOERROR, 12 ms, authoritativenoyes / yesALLOWED (63 records)9.9.4-RedHat-9.9.4-61.el7_5.1
ns2.dehostingleverancier.nl 2a02:348:56:53ce::1NOERROR, 12 ms, authoritativenoyes / yesALLOWED (63 records)9.9.4-RedHat-9.9.4-61.el7_5.1
ns2.hosted-power.com 94.237.94.82NOERROR, 6 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:43 by root@localhost)
ns2.hosted-power.com 2a04:3542:1000:910:3cc8:64ff:fefa:985NOERROR, 6 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:43 by root@localhost)

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.dehostingleverancier.nl: "9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.9"; ns2.dehostingleverancier.nl: "9.9.4-RedHat-9.9.4-61.el7_5.1"; ns2.hosted-power.com: "PowerDNS Authoritative Server 5.1.3 (built Jun 29 2026 17:44:43 by root@localhost)". Hide or replace the version string.
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns1.dehostingleverancier.nl (185.21.191.195): 63 records; ns1.dehostingleverancier.nl (2a02:348:a3:bfc3::1): 63 records; ns2.dehostingleverancier.nl (178.18.83.206): 63 records; ns2.dehostingleverancier.nl (2a02:348:56:53ce::1): 63 records. Restrict zone transfers to your secondary servers.
    #18
  • ✓ 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 2026100103 · primary ns1.hosted-power.com

Found

Primary (MNAME)
ns1.hosted-power.com
Contact (RNAME)
hostmaster.nvab-online.nl
Serial
2026100103
Refresh / retry
3600 s / 3600 s
Expire
1209600 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
ns1.dehostingleverancier.nl (185.21.191.195)2026100103
ns1.dehostingleverancier.nl (2a02:348:a3:bfc3::1)2026100103
ns1.hosted-power.com (31.3.98.171)2026100103
ns1.hosted-power.com (2a02:348:70:62ab::1)2026100103
ns2.dehostingleverancier.nl (178.18.83.206)2026100103
ns2.dehostingleverancier.nl (2a02:348:56:53ce::1)2026100103
ns2.hosted-power.com (94.237.94.82)2026100103
ns2.hosted-power.com (2a04:3542:1000:910:3cc8:64ff:fefa:985)2026100103

Checks

  • ✓ Serial 2026100103 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 14d, negative TTL 30m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.hosted-power.com is one of the listed nameservers.
  • ✓ Contact hostmaster@nvab-online.nl #25
    The SOA RNAME hostmaster.nvab-online.nl means hostmaster@nvab-online.nl.
  • ✓ Date-based serial #26
    The serial 2026100103 follows the YYYYMMDDnn convention (2026-10-01).

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

warn

10 records at the apex

Found

Read from
185.21.191.195:53
TypeValueTTL
SOAns1.hosted-power.com. hostmaster.nvab-online.nl. 2026100103 3600 3600 1209600 18003600
NSns1.hosted-power.com.60
NSns2.hosted-power.com.60
A87.233.198.17660
AAAA2001:9a8:a6:0:87:233:198:17660
MX10 nvabonline-nl01b.mail.protection.outlook.com.60
TXT"google-site-verification=ewzBtd0VhNuJXqvdnJFzYO1JMhE93YqDdLhxvoxbF0k"60
TXT"MS=ms95910067"60
TXT"v=spf1 a mx ip4:94.237.125.206 ip4:199.187.172.0/22 ip4:199.244.72.0/22 ip4:185.228.36.0/22 ip4:205.201.128.0/20 ip4:198.2.128.0/18 ip4:148.105.8.0/2" "1 include:spf.protection.outlook.com include:spf_servers.yard.nl include:spf_cluster.yard.nl include:spf.e-captain.nl include:_spf.exactonline.nl ip4:" "185.136.64.128/27 ip4:185.136.65.128/27 ~all"60
TXT"v=easydus; cg=d8c354a2-8db2-48f4-bf5d-5d4653f69ec9"60

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (1m), MX (1m), NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1m; resolvers may use either.
    #32
  • ✓ 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