vvkr.nl

Checked 22 October 2026, 17:11 UTC · via 8.8.8.8
!Passed with warnings
21 passed 3 warnings 0 failed 5 info

Registration

info

.nl country-code

Found

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

Delegation

warn

ns1.reto.nl, ns2.reto.nl, ns3.reto.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.reto.nl, ns2.reto.nl, ns3.reto.nl
NS in the zone
ns1.reto.nl, ns2.reto.nl
NameserverAddressesNetwork (AS)Glue
ns1.reto.nl31.3.109.26 2a03:7900:114:0:31:3:109:26AS197731 TUXIS - The Internet Engineering Group B.V., NL AS197731 TUXIS - The Internet Engineering Group B.V., NL31.3.109.26 2a03:7900:114:0:31:3:109:26
ns2.reto.nl185.119.31.35 2a03:7900:502:0:185:119:31:35AS197731 TUXIS - The Internet Engineering Group B.V., NL AS197731 TUXIS - The Internet Engineering Group B.V., NL185.119.31.35 2a03:7900:502:0:185:119:31:35
ns3.reto.nl (parent only)185.119.31.36 2a03:7900:502:0:185:119:31:36AS197731 TUXIS - The Internet Engineering Group B.V., NL AS197731 TUXIS - The Internet Engineering Group B.V., NL185.119.31.36 2a03:7900:502:0:185:119:31:36

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.reto.nl, ns2.reto.nl, ns3.reto.nl.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns3.reto.nl. ns1.reto.nl, ns2.reto.nl, ns3.reto.nl report NS ns1.reto.nl ns2.reto.nl.
    #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 2 IPv4 /24s and 2 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS197731 (TUXIS - The Internet Engineering Group 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

warn

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.reto.nl 31.3.109.26NOERROR, 12 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)
ns1.reto.nl 2a03:7900:114:0:31:3:109:26NOERROR, 12 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)
ns2.reto.nl 185.119.31.35NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)
ns2.reto.nl 2a03:7900:502:0:185:119:31:35NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)
ns3.reto.nl 185.119.31.36NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)
ns3.reto.nl 2a03:7900:502:0:185:119:31:36NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)

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.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.reto.nl: "PowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)"; ns2.reto.nl: "PowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)"; ns3.reto.nl: "PowerDNS Authoritative Server 4.2.0-rc2 (built Jun 12 2019 22:00:40 by root@d4df9820a603)". 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 2026102201 · primary ns1.reto.nl

Found

Primary (MNAME)
ns1.reto.nl
Contact (RNAME)
info.reto.nl
Serial
2026102201
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.reto.nl (31.3.109.26)2026102201
ns1.reto.nl (2a03:7900:114:0:31:3:109:26)2026102201
ns2.reto.nl (185.119.31.35)2026102201
ns2.reto.nl (2a03:7900:502:0:185:119:31:35)2026102201
ns3.reto.nl (185.119.31.36)2026102201
ns3.reto.nl (2a03:7900:502:0:185:119:31:36)2026102201

Checks

  • ✓ Serial 2026102201 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.reto.nl is one of the listed nameservers.
  • ✓ Contact info@reto.nl #25
    The SOA RNAME info.reto.nl means info@reto.nl.
  • ✓ Date-based serial #26
    The serial 2026102201 follows the YYYYMMDDnn convention (2026-10-22).

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

15 records at the apex

Found

Read from
31.3.109.26:53
TypeValueTTL
SOAns1.reto.nl. info.reto.nl. 2026102201 10800 3600 604800 36003600
NSns1.reto.nl.3600
NSns2.reto.nl.3600
A31.3.109.223600
MX10 mail.reto.nl.3600
TXT"wgc1swqcc1g5lk6nw856bs6z3smkpftl"300
TXT"ddwkxjwrmlkq6jwqqsrn7jk3d0n3hlp8"300
TXT"_6kpmfdqcbjlk5newvx7t7ebdijo72vf"300
TXT"zoho-verification=zb75046535.zmverify.zoho.eu"300
TXT"_vz6kl1o97dgbzh0mkuy7s34s3pu9ybl"300
TXT"tvvxnrjxbdsdpf21z39pqqxnjw6v4h3r"300
TXT"pjwh1n3pjwjq9b63skr3c1thyrvzlpxv"300
TXT"7d48rscll149hw9sz5451g01dvtykhm9"300
TXT"v=spf1 include:spf.reto.nl include:_spf.google.com include:spf.eprov.nl include:usermail.zohocreator.eu include:_spf.e-boekhouden.nl ~all"300
TXT"google-site-verification=6NPIf0k_XMH9uIoHzouZFTDS2wPUMsxPshx138lxCrs"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 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