vvd.nl

Checked 21 October 2026, 21:26 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/vvd.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/vvd.nl returned HTTP 429
    #3

Delegation

info

cosmin.ns.cloudflare.com, dina.ns.cloudflare.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
cosmin.ns.cloudflare.com, dina.ns.cloudflare.com
NS in the zone
cosmin.ns.cloudflare.com, dina.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
cosmin.ns.cloudflare.com172.64.35.45 162.159.44.45 108.162.195.45 2a06:98c1:50::ac40:232d 2803:f800:50::6ca2:c32d 2606:4700:58::a29f:2c2dAS13335 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-
dina.ns.cloudflare.com172.64.32.107 108.162.192.107 173.245.58.107 2803:f800:50::6ca2:c06b 2606:4700:50::adf5:3a6b 2a06:98c1:50::ac40:206bAS13335 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: cosmin.ns.cloudflare.com, dina.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
cosmin.ns.cloudflare.com 172.64.35.45NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
cosmin.ns.cloudflare.com 162.159.44.45NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
cosmin.ns.cloudflare.com 108.162.195.45NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
cosmin.ns.cloudflare.com 2a06:98c1:50::ac40:232dNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
cosmin.ns.cloudflare.com 2803:f800:50::6ca2:c32dNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
cosmin.ns.cloudflare.com 2606:4700:58::a29f:2c2dNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dina.ns.cloudflare.com 172.64.32.107NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dina.ns.cloudflare.com 108.162.192.107NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
dina.ns.cloudflare.com 173.245.58.107NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dina.ns.cloudflare.com 2803:f800:50::6ca2:c06bNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
dina.ns.cloudflare.com 2606:4700:50::adf5:3a6bNOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dina.ns.cloudflare.com 2a06:98c1:50::ac40:206bNOERROR, 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: cosmin.ns.cloudflare.com: "2026.10.2"; dina.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 2417289261 · primary cosmin.ns.cloudflare.com

Found

Primary (MNAME)
cosmin.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2417289261
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
cosmin.ns.cloudflare.com (172.64.35.45)2417289261
cosmin.ns.cloudflare.com (162.159.44.45)2417289261
cosmin.ns.cloudflare.com (108.162.195.45)2417289261
cosmin.ns.cloudflare.com (2a06:98c1:50::ac40:232d)2417289261
cosmin.ns.cloudflare.com (2803:f800:50::6ca2:c32d)2417289261
cosmin.ns.cloudflare.com (2606:4700:58::a29f:2c2d)2417289261
dina.ns.cloudflare.com (172.64.32.107)2417289261
dina.ns.cloudflare.com (108.162.192.107)2417289261
dina.ns.cloudflare.com (173.245.58.107)2417289261
dina.ns.cloudflare.com (2803:f800:50::6ca2:c06b)2417289261
dina.ns.cloudflare.com (2606:4700:50::adf5:3a6b)2417289261
dina.ns.cloudflare.com (2a06:98c1:50::ac40:206b)2417289261

Checks

  • ✓ Serial 2417289261 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 cosmin.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 2417289261 is a Unix timestamp (2046-08-07 21:14 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 CAEECBF6BA43FF62…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 20:26 UTC and expires at 2026-10-22 22:26 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

29 records at the apex

Found

Read from
172.64.35.45:53
TypeValueTTL
SOAcosmin.ns.cloudflare.com. dns.cloudflare.com. 2417289261 10000 2400 604800 18001800
NScosmin.ns.cloudflare.com.86400
NSdina.ns.cloudflare.com.86400
A104.26.13.218300
A104.26.12.218300
A172.67.72.178300
AAAA2606:4700:20::ac43:48b2300
AAAA2606:4700:20::681a:dda300
AAAA2606:4700:20::681a:cda300
MX0 vvd-nl.mail.protection.outlook.com.300
TXT"MS=ms95769205"300
TXT"apple-domain-verification=7P6E1sbd8tgct0TA"300
TXT"atlassian-domain-verification=ELnJ3eJmZS6xCjGGsh93U12dbRuG7Hkikco7SSuI/ob96a/QlSr/XhPLHSuOi6rz"300
TXT"facebook-domain-verification=07qd9u2mgtp12upltl95u2k4qam0at"300
TXT"google-site-verification=1lBRBZsYbrNWJBbjHwUT7O0sed9uaKvUIgqTxUGO8xM"300
TXT"google-site-verification=BxCOkd3_9Ay7WRsReSCFhwJOaqiUAu8QVKDJnnM8XYg"300
TXT"google-site-verification=LlKidi-dtxHLvbmRg85b93xASiZIU-PzZBrKcji57cg"300
TXT"google-site-verification=SRJUCkkOay9wfvZqKGk4i6j_tEqOoDFH8OCKcVDB0AM"300
TXT"v=spf1 include:spf.eprov.eu ip4:31.7.0.184 ip6:2a03:9700:8000::42 ip4:212.71.1.220 ip4:212.71.1.221 ip4:212.71.1.222 ip4:185.29.108.1 ip4:185.29.108.42 ip4:185.29.109.42 ip4:185.29.109.34 ip4:185.29.108.34 ip4:217.195.121.77 include:spf.protection.outlook" ".com include:amazonses.com include:_spf.psm.knowbe4.com -all"300
CAA0 issue "comodoca.com"3600
CAA0 issue "digicert.com; cansignhttpexchanges=yes"3600
CAA0 issue "letsencrypt.org"3600
CAA0 issue "pki.goog; cansignhttpexchanges=yes"3600
CAA0 issue "ssl.com"3600
CAA0 issuewild "comodoca.com"3600
CAA0 issuewild "digicert.com; cansignhttpexchanges=yes"3600
CAA0 issuewild "letsencrypt.org"3600
CAA0 issuewild "pki.goog; cansignhttpexchanges=yes"3600
CAA0 issuewild "ssl.com"3600

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, letsencrypt.org, pki.goog, ssl.com.