indelft.nl

Checked 22 October 2026, 13:52 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 0 failed 7 info

Registration

info

.nl country-code · Blue Coded B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
Blue Coded B.V.
Registered
7 January 2005
Last changed
25 August 2026
Status
active
Registry nameservers
ns1.bluecoded.nl, ns2.bluecoded.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

ns1.bluecoded.nl, ns2.bluecoded.nl

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.bluecoded.nl, ns2.bluecoded.nl
NS in the zone
ns1.bluecoded.nl, ns2.bluecoded.nl
NameserverAddressesNetwork (AS)Glue
ns1.bluecoded.nl89.146.5.250 2a03:82e0:100:a192::31AS28685 ASN-ROUTIT - Routit BV, NL AS200991 P-PROS - Blue Coded B.V., NL89.146.5.250 2a03:82e0:100:a192::31
ns2.bluecoded.nl185.89.80.250 2a03:82e0:100:b192::31AS200991 P-PROS - Blue Coded B.V., NL AS200991 P-PROS - Blue Coded B.V., NL185.89.80.250 2a03:82e0:100:b192::31

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.bluecoded.nl, ns2.bluecoded.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 2a03:82e0:100::/48, while the other address family is spread over several networks.
    #10
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS200991 (P-PROS - Blue Coded B.V., NL): 3 addresses; AS28685 (ASN-ROUTIT - Routit BV, NL): 1 address.
  • 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
ns1.bluecoded.nl 89.146.5.250NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns1.bluecoded.nl 2a03:82e0:100:a192::31NOERROR, 10 ms, authoritativenoyes / yesrefused-
ns2.bluecoded.nl 185.89.80.250NOERROR, 15 ms, authoritativenoyes / yesrefused-
ns2.bluecoded.nl 2a03:82e0:100:b192::31NOERROR, 14 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 2026082801 · primary ns1.bluecoded.nl

Found

Primary (MNAME)
ns1.bluecoded.nl
Contact (RNAME)
hostmaster.bluecoded.nl
Serial
2026082801
Refresh / retry
14400 s / 1800 s
Expire
1209600 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.bluecoded.nl (89.146.5.250)2026082801
ns1.bluecoded.nl (2a03:82e0:100:a192::31)2026082801
ns2.bluecoded.nl (185.89.80.250)2026082801
ns2.bluecoded.nl (2a03:82e0:100:b192::31)2026082801

Checks

  • ✓ Serial 2026082801 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 4h, retry 30m, expire 14d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.bluecoded.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@bluecoded.nl #25
    The SOA RNAME hostmaster.bluecoded.nl means hostmaster@bluecoded.nl.
  • ✓ Date-based serial #26
    The serial 2026082801 follows the YYYYMMDDnn convention (2026-08-28).

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

9 records at the apex

Found

Read from
89.146.5.250:53
TypeValueTTL
SOAns1.bluecoded.nl. hostmaster.bluecoded.nl. 2026082801 14400 1800 1209600 36003600
NSns2.bluecoded.nl.3600
NSns1.bluecoded.nl.3600
A79.125.126.1317200
AAAA2a05:d018:ade:1ff::1317200
MX0 indelft-nl.mail.protection.outlook.com.7200
TXT"v=spf1 include:relay.insiders.nl include:spf.protection.outlook.com include:spf.mailjet.com ip4:95.170.74.252 -all"7200
TXT"google-site-verification=9yx9z1bYSNbftKHHqj89UXq6RunNWLmzIY5NMV01_jA"7200
TXT"MS=ms33214693"7200

Checks

  • ✓ TTLs within range #32
    TTLs: A 2h, AAAA 2h, MX 2h, 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