televizier.nl

Checked 22 October 2026, 16:30 UTC · via 8.8.8.8
✗Problems found
19 passed 2 warnings 1 failed 7 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns1.isource.nl, ns2.isource.nl, ns3.isource.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.isource.nl, ns2.isource.nl, ns3.isource.nl
NS in the zone
ns1.isource.nl, ns2.isource.nl, ns3.isource.nl
NameserverAddressesNetwork (AS)Glue
ns1.isource.nl194.150.208.11 2001:678:10c:1::208:11AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL194.150.208.11 2001:678:10c:1::208:11
ns2.isource.nl194.150.209.11 2001:678:10c:1::209:11AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL194.150.209.11 2001:678:10c:1::209:11
ns3.isource.nl195.144.10.11 2001:678:10c:1::10:11AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL195.144.10.11 2001:678:10c:1::10:11

Checks

  • ✓ 3 nameservers #6
    Delegated to ns1.isource.nl, ns2.isource.nl, ns3.isource.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.
  • i
    One address family in one network
    all IPv6 addresses are in 2001:678:10c::/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 (AS60781 (LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands 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

fail

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.isource.nl 194.150.208.11NOERROR, 9 ms, authoritativenoyes / yesALLOWED (66 records)Are u joking
ns1.isource.nl 2001:678:10c:1::208:11NOERROR, 10 ms, authoritativenoyes / yesALLOWED (66 records)Are u joking
ns2.isource.nl 194.150.209.11NOERROR, 10 ms, authoritativenoyes / yesALLOWED (66 records)Are u joking
ns2.isource.nl 2001:678:10c:1::209:11NOERROR, 10 ms, authoritativenoyes / yesALLOWED (66 records)Are u joking
ns3.isource.nl 195.144.10.11NOERROR, 11 ms, authoritativenoyes / yesALLOWED (66 records)Are u joking
ns3.isource.nl 2001:678:10c:1::10:11NOERROR, 11 ms, authoritativenoyes / yesALLOWED (66 records)Are u joking

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.isource.nl: "Are u joking"; ns2.isource.nl: "Are u joking"; ns3.isource.nl: "Are u joking".
    #17
  • ✗
    Zone transfer allowed
    These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ns1.isource.nl (194.150.208.11): 66 records; ns1.isource.nl (2001:678:10c:1::208:11): 66 records; ns2.isource.nl (194.150.209.11): 66 records; ns2.isource.nl (2001:678:10c:1::209:11): 66 records; ns3.isource.nl (195.144.10.11): 66 records; ns3.isource.nl (2001:678:10c:1::10:11): 66 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 1791883735 · primary ns1.isource.nl

Found

Primary (MNAME)
ns1.isource.nl
Contact (RNAME)
pascal\.bouman.bindinc.nl
Serial
1791883735
Refresh / retry
3600 s / 14400 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.isource.nl (194.150.208.11)1791883735
ns1.isource.nl (2001:678:10c:1::208:11)1791883735
ns2.isource.nl (194.150.209.11)1791883735
ns2.isource.nl (2001:678:10c:1::209:11)1791883735
ns3.isource.nl (195.144.10.11)1791883735
ns3.isource.nl (2001:678:10c:1::10:11)1791883735

Checks

  • ✓ Serial 1791883735 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    retry 4h should be shorter than refresh 1h. Current values: refresh 1h, retry 4h, expire 7d, negative TTL 5m.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.isource.nl is one of the listed nameservers.
  • ✓ Contact pascal.bouman@bindinc.nl #25
    The SOA RNAME pascal\.bouman.bindinc.nl means pascal.bouman@bindinc.nl.
  • ✓ Timestamp serial #26
    The serial 1791883735 is a Unix timestamp (2026-10-13 09:28 UTC).

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

10 records at the apex

Found

Read from
194.150.208.11:53
TypeValueTTL
SOAns1.isource.nl. pascal\.bouman.bindinc.nl. 1791883735 3600 14400 604800 3003600
NSns1.isource.nl.3600
NSns3.isource.nl.3600
NSns2.isource.nl.3600
A195.144.10.1753600
MX0 televizier-nl.mail.protection.outlook.com.3600
TXT"v=spf1 mx a include:spf.protection.outlook.com include:spf.mandrillapp.com ip4:145.58.26.176/28 ip4:145.58.30.176/28 ip4:195.144.10.0/24 ip4:91.197.72.16 ip4:31.7.7.54 ip6:2a02:458:101:26::b0/124 ip6:2a02:458:101:30::b0/124 ~all"60
TXT"google-site-verification=hm5dHLXQBqp6arVdEKMQT2dIuB3FU-3na7rSL6ifINw"60
TXT"MS=ms78340314"60
TXT"google-site-verification=pJBqntTRlaKPTAYwCo0ewKNlM4umbvgyB70HY1iOYJg"60

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