vandebron.nl

Checked 22 October 2026, 17:00 UTC · via 8.8.8.8
!Passed with warnings
26 passed 1 warning 0 failed 6 info

Registration

info

.nl country-code

Found

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

Delegation

info

graham.ns.cloudflare.com, nia.ns.cloudflare.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
graham.ns.cloudflare.com, nia.ns.cloudflare.com
NS in the zone
graham.ns.cloudflare.com, nia.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
graham.ns.cloudflare.com108.162.193.171 172.64.33.171 173.245.59.171 2606:4700:58::adf5:3bab 2803:f800:50::6ca2:c1ab 2a06:98c1:50::ac40:21abAS13335 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-
nia.ns.cloudflare.com172.64.32.210 173.245.58.210 108.162.192.210 2803:f800:50::6ca2:c0d2 2a06:98c1:50::ac40:20d2 2606:4700:50::adf5:3ad2AS13335 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: graham.ns.cloudflare.com, nia.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
graham.ns.cloudflare.com 108.162.193.171NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
graham.ns.cloudflare.com 172.64.33.171NOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
graham.ns.cloudflare.com 173.245.59.171NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
graham.ns.cloudflare.com 2606:4700:58::adf5:3babNOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
graham.ns.cloudflare.com 2803:f800:50::6ca2:c1abNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
graham.ns.cloudflare.com 2a06:98c1:50::ac40:21abNOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
nia.ns.cloudflare.com 172.64.32.210NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
nia.ns.cloudflare.com 173.245.58.210NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
nia.ns.cloudflare.com 108.162.192.210NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
nia.ns.cloudflare.com 2803:f800:50::6ca2:c0d2NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
nia.ns.cloudflare.com 2a06:98c1:50::ac40:20d2NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
nia.ns.cloudflare.com 2606:4700:50::adf5:3ad2NOERROR, 16 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: graham.ns.cloudflare.com: "2026.10.2"; nia.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 2417974434 · primary graham.ns.cloudflare.com

Found

Primary (MNAME)
graham.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417974434
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
graham.ns.cloudflare.com (108.162.193.171)2417974434
graham.ns.cloudflare.com (172.64.33.171)2417974434
graham.ns.cloudflare.com (173.245.59.171)2417974434
graham.ns.cloudflare.com (2606:4700:58::adf5:3bab)2417974434
graham.ns.cloudflare.com (2803:f800:50::6ca2:c1ab)2417974434
graham.ns.cloudflare.com (2a06:98c1:50::ac40:21ab)2417974434
nia.ns.cloudflare.com (172.64.32.210)2417974434
nia.ns.cloudflare.com (173.245.58.210)2417974434
nia.ns.cloudflare.com (108.162.192.210)2417974434
nia.ns.cloudflare.com (2803:f800:50::6ca2:c0d2)2417974434
nia.ns.cloudflare.com (2a06:98c1:50::ac40:20d2)2417974434
nia.ns.cloudflare.com (2606:4700:50::adf5:3ad2)2417974434

Checks

  • ✓ Serial 2417974434 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 graham.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 2417974434 is a Unix timestamp (2046-08-15 19:33 UTC).

DNSSEC

info

Signed, DS published at parent

Found

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

DS at the parent

Key tagAlgorithmDigestMatches a key
2371ECDSAP256SHA256 (13)SHA256 9D7FC760BA2298B3…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 2026-10-21 16:00 UTC and expires at 2026-10-23 18:00 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

59 records at the apex

Found

Read from
108.162.193.171:53
TypeValueTTL
SOAgraham.ns.cloudflare.com. dns.cloudflare.com. 2417974434 10000 2400 604800 18001800
NSgraham.ns.cloudflare.com.86400
NSnia.ns.cloudflare.com.86400
A104.20.41.215300
A172.66.173.26300
AAAA2606:4700:10::6814:29d7300
AAAA2606:4700:10::ac42:ad1a300
MX1 ASPMX.L.GOOGLE.COM.300
MX10 ALT3.ASPMX.L.GOOGLE.COM.300
MX10 ALT4.ASPMX.L.GOOGLE.COM.300
MX5 ALT1.ASPMX.L.GOOGLE.COM.300
MX5 ALT2.ASPMX.L.GOOGLE.COM.300
TXT"7FhbZB5Y8NH1VuK1BZWVVRX6tXq/u1p5LjsXwer4xA8="300
TXT"AtM441dB+8kitzDtGo+wahEh+NCcY8aXuwyoytycRBo="300
TXT"DirectFedAuthUrl=https://accounts.google" ".com/o/saml2/idp?idpid=C00u8457v."300
TXT"DirectFedAuthUrl=https://vandebron.nl"300
TXT"GzshFdBH+7+9qvug9JbuluN0CT+qWmJ8SwoFH6vOSf0="300
TXT"IlNMtBuYOsFp310cOT0hQVC6DEjH+qzniTdntmQOZ7I="300
TXT"JghJmB9EIf7wZcD0DEzaHjagZmzTHjwI36DD/M31inc="300
TXT"MS=ms19465723"300
TXT"MS=ms98796895"300
TXT"Q6kYkZJGsC1tcZ5CT3w3NAqZIwUU3/ZLAW8A08KbbmU="300
TXT"RBbEHR67/AU7joSM7bJk4axEiW6mZAnCebIN2bnn6UA="300
TXT"X/oWcFDhp9ZvYyYA+IjEd2vfHHLF8u2mjJKLIHYTL4Q="300
TXT"anthropic-domain-verification-f9rqhg=wXlWDPXplgs7ptYEEQELqde1J"300
TXT"apple-domain-verification=kjPPVjQCtfx41i4E"300
TXT"atlassian-domain-verification=ES+7soWQicHdPca3bphaM/IKuPBx9mKvWidZ/ovG4d6vMQCNaAj2MdUjtKR227Ei"300
TXT"cef50c8437234ad518ee3eca647324469c5d05f4f301d77fa2"300
TXT"cloudflare_dashboard_sso=2eb17641d86484afc9c6bc7f48405a1d"300
TXT"ePJfwEKCFJE/ioXNFkdHRqS93+PoO7tAi2/L9J48Dx8="300
TXT"facebook-domain-verification=xnrefsalcb6" "e7hw5urvjg05si24fsc"300
TXT"globalsign-domain-verification=JghJmB9EI" "f7wZcD0DEzaHjagZmzTHjwI36DD/M31inc="300
TXT"google-site-verification=3IODs1P9oQWAe7c" "Of9TIDRXiF1DMTuN28kwr6hARTmc"300
TXT"google-site-verification=6IwI3Hzfyf9-Z_y_MP9rdvzbV6XepTUZDBfawguk6bQ"300
TXT"google-site-verification=JHx79z8aDQkjNet" "zKeJfWjMWeKzKFLprlzCgmQyqqmM"300
TXT"google-site-verification=ZE4IYBFd6w3Mpeg" "h18xnOoedJiKwDguS19SUo60YMkE"300
TXT"google-site-verification=g79eOWJY94s6Folyv8N1-M0g5gly3RypWusrs6vfXWc"300
TXT"google-site-verification=iipf3cdqesb4yGr8MuEa8dTr3kw_u3CPSEMEumICDxU"300
TXT"google-site-verification=jjVmffLwHUZ8m0u" "ZPY8Zk3YtJ1J1lkZNwJg-bGTVejg"300
TXT"miro-verification=d7e2dbbf21a1c8cb2084ea35cc80267c45edba77"300
TXT"mongodb-site-verification=rhkVjJ5XFle4tv" "qbMEAJlJ6ukkG9HDGp"300
TXT"postman-domain-verification=8b791a4da246" "26431b5c2952fa9815708e701b3587f990378ac2" "e23906081def4fdc308fe340b6c8f853a64e678f" "c88d0a6be2ea8847309a525882f71e6dcf44"300
TXT"slack-domain-verification=jmmZYpL70kUtC6MCIOP5jAZvxGaktw76dZ24CaPr"300
TXT"v=spf1 include:_spf.google.com include:_" "spf.salesforce.com ip4:23.97.220.134 ip4" ":167.89.84.20 include:spf.mandrillapp.co" "m include:servers.mcsv.net ~all"300
TXT"vE95hEoS+JurU9M0pMflccZam1L4xynw3ll8O1LOJmY="300
TXT"yokoy-domain-verification=962933eb3384e1d852caae0d76b609f7c37f46c657100413d2a100a4ea23fab5"300
TXT"zapier-domain-verification-challenge=bd942a26-459a-4aed-ad9b-006334c9ee8e"300
CAA0 iodef "mailto:digital@vandebron.nl"300
CAA0 issue "comodoca.com"300
CAA0 issue "digicert.com; cansignhttpexchanges=yes"300
CAA0 issue "globalsign.com"300
CAA0 issue "letsencrypt.org"300
CAA0 issue "pki.goog; cansignhttpexchanges=yes"300
CAA0 issue "ssl.com"300
CAA0 issuewild "comodoca.com"300
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"300
CAA0 issuewild "letsencrypt.org"300
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"300
CAA0 issuewild "ssl.com"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: comodoca.com, digicert.com, globalsign.com, letsencrypt.org, pki.goog, ssl.com.