s-hertogenbosch.nl

Checked 21 October 2026, 21:25 UTC · via 8.8.8.8
!Passed with warnings
27 passed 1 warning 0 failed 7 info

Registration

info

.nl country-code · team.blue nl B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
team.blue nl B.V.
Registered
23 September 1999
Last changed
8 September 2026
Status
active
Registry nameservers
heidi.ns.cloudflare.com, lynn.ns.cloudflare.com
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

heidi.ns.cloudflare.com, lynn.ns.cloudflare.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
heidi.ns.cloudflare.com, lynn.ns.cloudflare.com
NS in the zone
heidi.ns.cloudflare.com, lynn.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
heidi.ns.cloudflare.com172.64.34.236 162.159.38.236 108.162.194.236 2a06:98c1:50::ac40:22ec 2606:4700:50::a29f:26ec 2803:f800:50::6ca2:c2ecAS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-
lynn.ns.cloudflare.com108.162.193.201 172.64.33.201 173.245.59.201 2a06:98c1:50::ac40:21c9 2606:4700:58::adf5:3bc9 2803:f800:50::6ca2:c1c9AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US AS13335 CLOUDFLARENET - Cloudflare, Inc., US-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: heidi.ns.cloudflare.com, lynn.ns.cloudflare.com.
    #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 6 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13335 (CLOUDFLARENET - Cloudflare, Inc., US): 12 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 .com
    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

12 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
heidi.ns.cloudflare.com 172.64.34.236NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 162.159.38.236NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 108.162.194.236NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 2a06:98c1:50::ac40:22ecNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 2606:4700:50::a29f:26ecNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
heidi.ns.cloudflare.com 2803:f800:50::6ca2:c2ecNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
lynn.ns.cloudflare.com 108.162.193.201NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
lynn.ns.cloudflare.com 172.64.33.201NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
lynn.ns.cloudflare.com 173.245.59.201NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
lynn.ns.cloudflare.com 2a06:98c1:50::ac40:21c9NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
lynn.ns.cloudflare.com 2606:4700:58::adf5:3bc9NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
lynn.ns.cloudflare.com 2803:f800:50::6ca2:c1c9NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2

Checks

  • ✓ All respond #14
    All 12 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: heidi.ns.cloudflare.com: "2026.10.2"; lynn.ns.cloudflare.com: "2026.10.2". 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 2417980819 · primary heidi.ns.cloudflare.com

Found

Primary (MNAME)
heidi.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417980819
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
heidi.ns.cloudflare.com (172.64.34.236)2417980819
heidi.ns.cloudflare.com (162.159.38.236)2417980819
heidi.ns.cloudflare.com (108.162.194.236)2417980819
heidi.ns.cloudflare.com (2a06:98c1:50::ac40:22ec)2417980819
heidi.ns.cloudflare.com (2606:4700:50::a29f:26ec)2417980819
heidi.ns.cloudflare.com (2803:f800:50::6ca2:c2ec)2417980819
lynn.ns.cloudflare.com (108.162.193.201)2417980819
lynn.ns.cloudflare.com (172.64.33.201)2417980819
lynn.ns.cloudflare.com (173.245.59.201)2417980819
lynn.ns.cloudflare.com (2a06:98c1:50::ac40:21c9)2417980819
lynn.ns.cloudflare.com (2606:4700:58::adf5:3bc9)2417980819
lynn.ns.cloudflare.com (2803:f800:50::6ca2:c1c9)2417980819

Checks

  • ✓ Serial 2417980819 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h46m40s, retry 40m, expire 7d, negative TTL 30m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver heidi.ns.cloudflare.com is one of the listed nameservers.
  • ✓ Contact dns@cloudflare.com #25
    The SOA RNAME dns.cloudflare.com means dns@cloudflare.com.
  • ✓ Timestamp serial #26
    The serial 2417980819 is a Unix timestamp (2046-08-15 21:20 UTC).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
22 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 599BB31D12FA2378…yes

DNSKEY in the zone

Key tagRoleAlgorithm
2371KSK (257)ECDSAP256SHA256 (13)
34505ZSK (256)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 2371 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 50h0m0s and created on demand; the current one was made at 2026-10-20 20:25 UTC and expires at 2026-10-22 22:25 UTC.
  • i
    NSEC
    The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.
    #31

Records

pass

22 records at the apex

Found

Read from
172.64.34.236:53
TypeValueTTL
SOAheidi.ns.cloudflare.com. dns.cloudflare.com. 2417980819 10000 2400 604800 18001800
NSheidi.ns.cloudflare.com.86400
NSlynn.ns.cloudflare.com.86400
A104.18.7.91300
A104.18.6.91300
AAAA2606:4700::6812:75b300
AAAA2606:4700::6812:65b300
MX20 shertogenbosch-nl0c.q-v1.mx.microsoft.300
TXT"1password-site-verification=2PN3GW7Z5NDV5KJQNTMIRGLZ4A"300
TXT"DomainVerification=RNQGSC1V039NA5ONWCQDDHZ5L96UD454UMA96VIQRFI08U8CTQYAADNTXXKRUOJF"300
TXT"QNH5M0apjgyGK9lWA0ZUjLZ3UhtjxkDTNjDnFFuEh6Wyoqa8x7utC/vkEkRzVmhyceer9xlbu4i6o8US7U1P8g=="300
TXT"RNJNrOFsWXKQ9xIs5Zn/vPVVRYydO4btvyA4lGW5dtw10YyEGHUFAnEhs3/HoXaxy3SVklL9lsc2Iu7LumvsJw=="300
TXT"apple-domain-verification=A0YTHHP1KJY1YHpi"300
TXT"google-site-verification=k6kZNA24QsT56tqdrNVl6yeRwwRLo30YGbf1euU2sJs"300
TXT"hu01uLZFwqt8sGXo"300
TXT"v=spf1 include:spf.protection.outlook.com -all"300
CAA0 iodef "mailto:hostmaster@s-hertogenbosch.nl"300
CAA0 issue "digicert.com"300
CAA0 issue "kpn.com"300
CAA0 issue "www.pkioverheid.nl"300
CAA0 issuemail ";"300
CAA0 issuewild ";"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, AAAA 5m, MX 5m, NS 1d. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • ✓ CAA restricts issuance #35
    Certificates may be issued by: digicert.com, kpn.com, www.pkioverheid.nl, none (issuance forbidden).