zuidwestupdate.nl

Checked 22 October 2026, 17:31 UTC · via 8.8.8.8
!Passed with warnings
22 passed 2 warnings 0 failed 5 info

Registration

info

.nl country-code

Found

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

Delegation

info

chloe.ns.cloudflare.com, etienne.ns.cloudflare.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
chloe.ns.cloudflare.com, etienne.ns.cloudflare.com
NS in the zone
chloe.ns.cloudflare.com, etienne.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
chloe.ns.cloudflare.com172.64.32.85 108.162.192.85 173.245.58.85 2606:4700:50::adf5:3a55 2803:f800:50::6ca2:c055 2a06:98c1:50::ac40:2055AS13335 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-
etienne.ns.cloudflare.com172.64.35.61 108.162.195.61 162.159.44.61 2803:f800:50::6ca2:c33d 2a06:98c1:50::ac40:233d 2606:4700:58::a29f:2c3dAS13335 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: chloe.ns.cloudflare.com, etienne.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
chloe.ns.cloudflare.com 172.64.32.85NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
chloe.ns.cloudflare.com 108.162.192.85NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
chloe.ns.cloudflare.com 173.245.58.85NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
chloe.ns.cloudflare.com 2606:4700:50::adf5:3a55NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
chloe.ns.cloudflare.com 2803:f800:50::6ca2:c055NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
chloe.ns.cloudflare.com 2a06:98c1:50::ac40:2055NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
etienne.ns.cloudflare.com 172.64.35.61NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
etienne.ns.cloudflare.com 108.162.195.61NOERROR, 14 ms, authoritativenoyes / yesrefused2026.10.2
etienne.ns.cloudflare.com 162.159.44.61NOERROR, 32 ms, authoritativenoyes / yesrefused2026.10.2
etienne.ns.cloudflare.com 2803:f800:50::6ca2:c33dNOERROR, 17 ms, authoritativenoyes / yesrefused2026.10.2
etienne.ns.cloudflare.com 2a06:98c1:50::ac40:233dNOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
etienne.ns.cloudflare.com 2606:4700:58::a29f:2c3dNOERROR, 15 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: chloe.ns.cloudflare.com: "2026.10.2"; etienne.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 2415880922 · primary chloe.ns.cloudflare.com

Found

Primary (MNAME)
chloe.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2415880922
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
chloe.ns.cloudflare.com (172.64.32.85)2415880922
chloe.ns.cloudflare.com (108.162.192.85)2415880922
chloe.ns.cloudflare.com (173.245.58.85)2415880922
chloe.ns.cloudflare.com (2606:4700:50::adf5:3a55)2415880922
chloe.ns.cloudflare.com (2803:f800:50::6ca2:c055)2415880922
chloe.ns.cloudflare.com (2a06:98c1:50::ac40:2055)2415880922
etienne.ns.cloudflare.com (172.64.35.61)2415880922
etienne.ns.cloudflare.com (108.162.195.61)2415880922
etienne.ns.cloudflare.com (162.159.44.61)2415880922
etienne.ns.cloudflare.com (2803:f800:50::6ca2:c33d)2415880922
etienne.ns.cloudflare.com (2a06:98c1:50::ac40:233d)2415880922
etienne.ns.cloudflare.com (2606:4700:58::a29f:2c3d)2415880922

Checks

  • ✓ Serial 2415880922 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 chloe.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 2415880922 is a Unix timestamp (2046-07-22 14:02 UTC).

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

pass

25 records at the apex

Found

Read from
172.64.32.85:53
TypeValueTTL
SOAchloe.ns.cloudflare.com. dns.cloudflare.com. 2415880922 10000 2400 604800 18001800
NSchloe.ns.cloudflare.com.86400
NSetienne.ns.cloudflare.com.86400
A172.66.151.66300
A104.20.36.83300
AAAA2606:4700:10::ac42:9742300
AAAA2606:4700:10::6814:2453300
MX0 zuidwestupdate-nl.mail.protection.outlook.com.3600
TXT"MS=ms28594564"300
TXT"ahrefs-site-verification_31e86853872aa5c4a7115de9d8b3a88568e7908d9f79e46464471b766d8016b0"300
TXT"facebook-domain-verification=kszqm5gw1mp1x5dtzivv8imj27xq15"300
TXT"facebook-domain-verification=z3qx0vylxzx6j7bohyo1agcp4v9bf9"300
TXT"google-site-verification=1I_spQUM1U5pbQflZir-q7wf-UbW0li7J5bJVcUh_xM"300
TXT"tiktok-developers-site-verification=G2QGxwr60P5ukgOphcr7WIB5Tm78Vpr6"300
TXT"v=spf1 include:spf.protection.outlook.com include:filter-out.zxcs.nl -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 1h, 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.