louwman.nl

Checked 22 October 2026, 14:11 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 warnings 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/louwman.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/louwman.nl returned HTTP 429
    #3

Delegation

info

dana.ns.cloudflare.com, tom.ns.cloudflare.com

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
dana.ns.cloudflare.com, tom.ns.cloudflare.com
NS in the zone
dana.ns.cloudflare.com, tom.ns.cloudflare.com
NameserverAddressesNetwork (AS)Glue
dana.ns.cloudflare.com172.64.32.105 108.162.192.105 173.245.58.105 2606:4700:50::adf5:3a69 2803:f800:50::6ca2:c069 2a06:98c1:50::ac40:2069AS13335 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-
tom.ns.cloudflare.com108.162.193.147 173.245.59.147 172.64.33.147 2a06:98c1:50::ac40:2193 2606:4700:58::adf5:3b93 2803:f800:50::6ca2:c193AS13335 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: dana.ns.cloudflare.com, tom.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
dana.ns.cloudflare.com 172.64.32.105NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dana.ns.cloudflare.com 108.162.192.105NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dana.ns.cloudflare.com 173.245.58.105NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
dana.ns.cloudflare.com 2606:4700:50::adf5:3a69NOERROR, 18 ms, authoritativenoyes / yesrefused2026.10.2
dana.ns.cloudflare.com 2803:f800:50::6ca2:c069NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
dana.ns.cloudflare.com 2a06:98c1:50::ac40:2069NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
tom.ns.cloudflare.com 108.162.193.147NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
tom.ns.cloudflare.com 173.245.59.147NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
tom.ns.cloudflare.com 172.64.33.147NOERROR, 15 ms, authoritativenoyes / yesrefused2026.10.2
tom.ns.cloudflare.com 2a06:98c1:50::ac40:2193NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
tom.ns.cloudflare.com 2606:4700:58::adf5:3b93NOERROR, 16 ms, authoritativenoyes / yesrefused2026.10.2
tom.ns.cloudflare.com 2803:f800:50::6ca2:c193NOERROR, 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: dana.ns.cloudflare.com: "2026.10.2"; tom.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 2416682506 · primary dana.ns.cloudflare.com

Found

Primary (MNAME)
dana.ns.cloudflare.com
Contact (RNAME)
dns.cloudflare.com
Serial
2416682506
Refresh / retry
10000 s / 2400 s
Expire
604800 s
Negative TTL
1800 s

Serial per nameserver

NameserverSerial
dana.ns.cloudflare.com (172.64.32.105)2416682506
dana.ns.cloudflare.com (108.162.192.105)2416682506
dana.ns.cloudflare.com (173.245.58.105)2416682506
dana.ns.cloudflare.com (2606:4700:50::adf5:3a69)2416682506
dana.ns.cloudflare.com (2803:f800:50::6ca2:c069)2416682506
dana.ns.cloudflare.com (2a06:98c1:50::ac40:2069)2416682506
tom.ns.cloudflare.com (108.162.193.147)2416682506
tom.ns.cloudflare.com (173.245.59.147)2416682506
tom.ns.cloudflare.com (172.64.33.147)2416682506
tom.ns.cloudflare.com (2a06:98c1:50::ac40:2193)2416682506
tom.ns.cloudflare.com (2606:4700:58::adf5:3b93)2416682506
tom.ns.cloudflare.com (2803:f800:50::6ca2:c193)2416682506

Checks

  • ✓ Serial 2416682506 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 dana.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 2416682506 is a Unix timestamp (2046-07-31 20:41 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

info

15 records at the apex

Found

Read from
172.64.32.105:53
TypeValueTTL
SOAdana.ns.cloudflare.com. dns.cloudflare.com. 2416682506 10000 2400 604800 18001800
NSdana.ns.cloudflare.com.86400
NStom.ns.cloudflare.com.86400
A104.26.14.131300
A104.26.15.131300
A172.67.68.192300
AAAA2606:4700:20::ac43:44c0300
AAAA2606:4700:20::681a:e83300
AAAA2606:4700:20::681a:f83300
MX10 louwman-nl.mail.protection.outlook.com.300
TXT"atlassian-domain-verification=yaW0kyKKh4HQVhVajObY0/8dd6ApennfZRXRZu53Po/9HOaJr4mIChqDKzj7qaXp"300
TXT"facebook-domain-verification=3fxq4f6nyyrykxi3zjmluj7ak0bgbd"300
TXT"google-site-verification=i0aCfB4pij8I5rMjtq68Gg08RB8SYK5Y1nDBAuTrd2E"300
TXT"onetrust-domain-verification=77b0a65a8bda48b9899848a13dd4ce0a"300
TXT"v=spf1 include:spf.protection.outlook.com include:_spf.eu.mailgun.org include:_spf.mijnlef.nl include:spf.trustit.eu include:klant.spf.gakijken.nl include:spf.uname-it.digital include:spf.topdesk.net include:spf.mailjet.com a:smtp.directaccess.nl ip4:93.1" "17.251.9 ip4:213.247.120.9 ip4:37.139.142.28 ip4:149.210.182.5 ip4:18.194.164.77/32 ip4:62.148.182.10 ip4:62.148.182.12 ip4:62.148.191.63 ip4:185.66.92.0/29 ip4:185.66.92.8/29 ip6:2a05:680:0:1::/64 ip6:2a05:680:0:2::/64 ip4:205.201.128.0/20 ip4:198.2.128." "0/18 ip4:84.38.233.211 ip4:148.105.8.0/21 ip4:185.136.64.128/27 ip4:185.136.65.128/27 ip6:2a0b:3100:100::58:5 ip4:178.22.58.5 ip4:178.22.58.4 ip4:185.173.20.200 ip4:185.173.21.200 ip4:87.233.176.246 ip6:2001:9a8:0:1b:10:0:176:246 ip6:2a0b:3100:100::58:4 i" "p4:185.173.20.71 ip6:2a0b:3100:3::20:71 ip4:185.173.20.74 ip4:185.173.20.75 ip4:185.173.20.76 ip6:2a0b:3100:3::20:74 ip6:2a0b:3100:3::20:75 ip6:2a0b:3100:3::20:76 ip4:185.31.244.200 ip4:185.31.244.201 ip4:185.31.244.202 -all"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.
  • 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