vrijdagonline.nl

Checked 22 October 2026, 17:10 UTC · via 8.8.8.8
!Passed with warnings
20 passed 2 warnings 0 failed 7 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns3.cj2.nl, ns4.cj2.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns3.cj2.nl, ns4.cj2.nl
NS in the zone
ns3.cj2.nl, ns4.cj2.nl
NameserverAddressesNetwork (AS)Glue
ns3.cj2.nl194.50.163.37 2a00:1bd0::100:110AS39704 CJ2-AS - CJ2 Hosting B.V., NL AS39704 CJ2-AS - CJ2 Hosting B.V., NL-
ns4.cj2.nl91.192.36.44 2a00:1bd0:0:104::110AS39704 CJ2-AS - CJ2 Hosting B.V., NL AS39704 CJ2-AS - CJ2 Hosting B.V., NL-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.cj2.nl, ns4.cj2.nl.
    #6
  • ✓ 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 2a00:1bd0::/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 (AS39704 (CJ2-AS - CJ2 Hosting B.V., NL): 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

warn

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns3.cj2.nl 194.50.163.37NOERROR, 13 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.1
ns3.cj2.nl 2a00:1bd0::100:110NOERROR, 14 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.1
ns4.cj2.nl 91.192.36.44NOERROR, 14 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.1
ns4.cj2.nl 2a00:1bd0:0:104::110NOERROR, 14 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.1.1

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns3.cj2.nl: "PowerDNS Authoritative Server 4.1.1"; ns4.cj2.nl: "PowerDNS Authoritative Server 4.1.1". Hide or replace the version string.
    #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 2025030201 · primary ns3.cj2.nl

Found

Primary (MNAME)
ns3.cj2.nl
Contact (RNAME)
noc.vrijdagonline.nl
Serial
2025030201
Refresh / retry
1800 s / 900 s
Expire
604800 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns3.cj2.nl (194.50.163.37)2025030201
ns3.cj2.nl (2a00:1bd0::100:110)2025030201
ns4.cj2.nl (91.192.36.44)2025030201
ns4.cj2.nl (2a00:1bd0:0:104::110)2025030201

Checks

  • ✓ Serial 2025030201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 30m, retry 15m, expire 7d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns3.cj2.nl is one of the listed nameservers.
  • ✓ Contact noc@vrijdagonline.nl #25
    The SOA RNAME noc.vrijdagonline.nl means noc@vrijdagonline.nl.
  • ✓ Date-based serial #26
    The serial 2025030201 follows the YYYYMMDDnn convention (2025-03-02).

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

info

14 records at the apex

Found

Read from
194.50.163.37:53
TypeValueTTL
SOAns3.cj2.nl. noc.vrijdagonline.nl. 2025030201 1800 900 604800 864003600
NSns4.cj2.nl.3600
NSns3.cj2.nl.3600
A91.192.38.923600
AAAA2a00:1bd0:1386:1337::13600
MX5 ALT1.ASPMX.L.GOOGLE.COM.3600
MX5 ALT2.ASPMX.L.GOOGLE.COM.3600
MX10 ASPMX2.GOOGLEMAIL.COM.3600
MX1 ASPMX.L.GOOGLE.COM.3600
MX10 ASPMX3.GOOGLEMAIL.COM.3600
TXT"canva-site-verification=KYaZgvxtfIYk7mh1XhIF1g"3600
TXT"v=spf1 a include:_spf.google.com include:_spf.payt.nl include:spf.flowmailer.net include:spf.eprov.nl include:spf.tribecrm.nl ~all"3600
TXT"v=DMARC1; p=none"3600
TXT"google-site-verification=0adAZ7i34Qy3SccCcQHYW4jtAi3IaXEHj9idqKNUuEk"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 1h, NS 1h.
  • ✓ 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