korzo.nl

Checked 22 October 2026, 14:03 UTC · via 8.8.8.8
iAll checks passed
28 passed 0 warnings 0 failed 7 info

Registration

info

.nl country-code · Hostnet B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Hostnet B.V.
Registered
8 April 1999
Last changed
6 September 2024
Status
active
Registry nameservers
ns01.hostnet.nl, ns02.hostnet.nl
RDAP server
https://rdap.sidn.nl/

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
    Expiry date not published
    The registry does not publish the expiry date in RDAP. Check it with your registrar.
    #3
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

info

ns01.hostnet.nl, ns02.hostnet.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns01.hostnet.nl, ns02.hostnet.nl
NS in the zone
ns01.hostnet.nl, ns02.hostnet.nl
NameserverAddressesNetwork (AS)Glue
ns01.hostnet.nl195.206.121.13 2001:67c:28cc::13AS197495 ONECOM-INFRA - One.com A/S, DK AS197495 ONECOM-INFRA - One.com A/S, DK-
ns02.hostnet.nl185.10.11.13 2001:67c:3c0::13AS51468 ONECOM - One.com A/S, DK AS51468 ONECOM - One.com A/S, DK-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns01.hostnet.nl, ns02.hostnet.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.
  • ✓ Nameservers in different networks #10
    The nameservers are spread over 2 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS197495 (ONECOM-INFRA - One.com A/S, DK): 2 addresses; AS51468 (ONECOM - One.com A/S, DK): 2 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

pass

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns01.hostnet.nl 195.206.121.13NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns01.hostnet.nl 2001:67c:28cc::13NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns02.hostnet.nl 185.10.11.13NOERROR, 18 ms, authoritativenoyes / yesrefused-
ns02.hostnet.nl 2001:67c:3c0::13NOERROR, 18 ms, authoritativenoyes / yesrefused-

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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2026102001 · primary ns01.hostnet.nl

Found

Primary (MNAME)
ns01.hostnet.nl
Contact (RNAME)
hostmaster.hostnet.nl
Serial
2026102001
Refresh / retry
14400 s / 3600 s
Expire
1209600 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
ns01.hostnet.nl (195.206.121.13)2026102001
ns01.hostnet.nl (2001:67c:28cc::13)2026102001
ns02.hostnet.nl (185.10.11.13)2026102001
ns02.hostnet.nl (2001:67c:3c0::13)2026102001

Checks

  • ✓ Serial 2026102001 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 1h, expire 14d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns01.hostnet.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@hostnet.nl #25
    The SOA RNAME hostmaster.hostnet.nl means hostmaster@hostnet.nl.
  • ✓ Date-based serial #26
    The serial 2026102001 follows the YYYYMMDDnn convention (2026-10-20).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
5 November 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
17386ECDSAP256SHA256 (13)SHA256 19AA1C5A60501FA7…yes

DNSKEY in the zone

Key tagRoleAlgorithm
17386KSK (257)ECDSAP256SHA256 (13)

Checks

  • ✓ Signed and validated #27
    The zone is signed, the parent publishes a DS record, and the resolver validates the answers.
  • ✓ DS matches a key #28
    The DS record at the parent matches a key in the zone: key tag 17386 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-11-05 #30
    The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

12 records at the apex

Found

Read from
195.206.121.13:53
TypeValueTTL
SOAns01.hostnet.nl. hostmaster.hostnet.nl. 2026102001 14400 3600 1209600 60014400
NSns01.hostnet.nl.14400
NSns02.hostnet.nl.14400
A87.233.102.107600
MX0 korzo-nl.mail.protection.outlook.com.600
TXT"google-site-verification=WHX_zT4jDVwn9MXRpBUlTFOCT6tWb7qTk2drEd-ezcU"600
TXT"mailerlite-domain-verification=4dbfea71b3d89caa33583283c74d490eaa1e2a84"600
TXT"google-site-verification=i3f6uCdXlgNFId0RDVGd-0KsL1c8xG82j7k1tRP2a-U"600
TXT"MS=ms19342926"600
TXT"MS=019732DECB1E97B5ACCA54937F80A370C4E387EB"600
TXT"facebook-domain-verification=0wmcwl0wsfw8gofd9iehaarngf6r9h"600
TXT"v=spf1 a include:spf.protection.outlook.com include:spf.wearehostingyou.com include:spf.postal.cloudmailer.nl include:shops.shopify.com include:mailgun.org include:_spf.mlsend.com ~all"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 10m, MX 10m, NS 4h. The NS TTL at the parent is 1h and in the zone 4h; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • i
    Wildcard record
    A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.
    #34
  • 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