wwf.nl

Checked 21 October 2026, 21:27 UTC · via 8.8.8.8
!Passed with warnings
29 passed 1 warning 0 failed 3 info

Registration

info

.nl country-code

Found

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

Delegation

pass

nsauth1.bit.nl, nsauth2.bit.nl, nsauth3.bitnl.eu

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
nsauth1.bit.nl, nsauth2.bit.nl, nsauth3.bitnl.eu
NS in the zone
nsauth1.bit.nl, nsauth2.bit.nl, nsauth3.bitnl.eu
NameserverAddressesNetwork (AS)Glue
nsauth1.bit.nl213.136.12.51 2001:7b8:3:2c::53AS12859 NL-BIT - BIT BV, NL AS12859 NL-BIT - BIT BV, NL213.136.12.51 2001:7b8:3:2c::53
nsauth2.bit.nl213.136.12.59 2001:7b8:3:2d::53AS12859 NL-BIT - BIT BV, NL AS12859 NL-BIT - BIT BV, NL213.136.12.59 2001:7b8:3:2d::53
nsauth3.bitnl.eu85.17.15.88 2001:1af8:4700:a119:16:0:8517:1588AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL AS60781 LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL-

Checks

  • ✓ 3 nameservers #6
    Delegated to nsauth1.bit.nl, nsauth2.bit.nl, nsauth3.bitnl.eu.
  • ✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS12859 (NL-BIT - BIT BV, NL): 4 addresses; AS60781 (LEASEWEB-NL-AMS-01 - LeaseWeb Netherlands B.V., NL): 2 addresses.
  • ✓ Nameserver names under 2 TLDs #12
    Nameserver names use the TLDs .eu, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

warn

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
nsauth1.bit.nl 213.136.12.51NOERROR, 13 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:10:06 by root@localhost)
nsauth1.bit.nl 2001:7b8:3:2c::53NOERROR, 11 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:10:06 by root@localhost)
nsauth2.bit.nl 213.136.12.59NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:10:06 by root@localhost)
nsauth2.bit.nl 2001:7b8:3:2d::53NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:10:06 by root@localhost)
nsauth3.bitnl.eu 85.17.15.88NOERROR, 9 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.11 (built Oct 15 2025 10:16:15 by root@localhost)
nsauth3.bitnl.eu 2001:1af8:4700:a119:16:0:8517:1588NOERROR, 10 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.9.11 (built Oct 15 2025 10:16:15 by root@localhost)

Checks

  • ✓ All respond #14
    All 6 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: nsauth1.bit.nl: "PowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:10:06 by root@localhost)"; nsauth2.bit.nl: "PowerDNS Authoritative Server 4.9.15 (built May 11 2026 09:10:06 by root@localhost)"; nsauth3.bitnl.eu: "PowerDNS Authoritative Server 4.9.11 (built Oct 15 2025 10:16:15 by root@localhost)". 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 2026102104 · primary nsauth1.bit.nl

Found

Primary (MNAME)
nsauth1.bit.nl
Contact (RNAME)
hostmaster.bit.nl
Serial
2026102104
Refresh / retry
28800 s / 7200 s
Expire
604800 s
Negative TTL
600 s

Serial per nameserver

NameserverSerial
nsauth1.bit.nl (213.136.12.51)2026102104
nsauth1.bit.nl (2001:7b8:3:2c::53)2026102104
nsauth2.bit.nl (213.136.12.59)2026102104
nsauth2.bit.nl (2001:7b8:3:2d::53)2026102104
nsauth3.bitnl.eu (85.17.15.88)2026102104
nsauth3.bitnl.eu (2001:1af8:4700:a119:16:0:8517:1588)2026102104

Checks

  • ✓ Serial 2026102104 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 8h, retry 2h, expire 7d, negative TTL 10m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver nsauth1.bit.nl is one of the listed nameservers.
  • ✓ Contact hostmaster@bit.nl #25
    The SOA RNAME hostmaster.bit.nl means hostmaster@bit.nl.
  • ✓ Date-based serial #26
    The serial 2026102104 follows the YYYYMMDDnn convention (2026-10-21).

DNSSEC

pass

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC3
NSEC3
0 iterations, 0-byte salt
Signatures valid until
29 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
41169ECDSAP256SHA256 (13)SHA256 5CE6AE5C0F8D477D…yes

DNSKEY in the zone

Key tagRoleAlgorithm
41169KSK (257)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 41169 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 00:00 UTC.
  • ✓ NSEC3 as recommended #31
    The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

26 records at the apex

Found

Read from
213.136.12.51:53
TypeValueTTL
SOAnsauth1.bit.nl. hostmaster.bit.nl. 2026102104 28800 7200 604800 600600
NSnsauth1.bit.nl.600
NSnsauth2.bit.nl.600
NSnsauth3.bitnl.eu.600
A217.114.94.2300
MX10 wwf-nl.mail.protection.outlook.com.600
TXT"0ed1fe018a244f4803149d4d5a8d65c50e53144635"600
TXT"1kfcz8fgzpc1fmrrzt9qnhkxsxhw51s1"600
TXT"DomainVerification=48JQSDA259LVAJL3C9YQJ5VOJCTR1P49N5K2DEMN39RSB0RIY10QB26D1VYWBLRQ"600
TXT"MS=ms77821222"600
TXT"ZOOM_verify_fjksjU9bRR2PYe73S8_Y-Q"600
TXT"_6541hea2xqaq50w037liupcb547v8f2"600
TXT"_65cyxc59eldub0hqlrwvs6x42s63bd4"600
TXT"_ist28vdejmc8wu6l50ntuku336a3lq9"600
TXT"adobe-idp-site-verification=cd5153cb-af43-4d21-9a01-21447373db11"600
TXT"apple-domain-verification=EmJUP2CNI9mhtWSE"600
TXT"atlassian-domain-verification=JJlt01/OfvXr0HsX23NZzSjJNdM41z7oszWYfT4Yvkxdt2Ui+XdbmAYYLH+sLQPa"600
TXT"brevo-code:b3541c5bd2ff158ba01091d0ff882202"600
TXT"docusign=76811aa0-2a3d-4577-bd91-222918b6d9d5"600
TXT"google-site-verification=5iFLwrxqyL824ObAsj_T8ZkEEhhIfkp7TWZyWYqBn9w"600
TXT"google-site-verification=NOUwBun6oXSjj5occZ5qg716Xf0auSGUXVV5HBC5QiA"600
TXT"have-i-been-pwned-verification=0d83cc8421a96ccc96ef517bb0f4c980"600
TXT"mYYH7+BhMZBWqDxYfotuFPTywcXsaUXcL7k8UOpyW+A06HJ9vAhmCWqpUNrmOrYeA1ya7zwm/RUk8E8nSjVuaQ=="600
TXT"monday-com-verification=Fza7OiMsouKMayA7vEhBY27YH17jdofbYeuPPwuq2KQ"600
TXT"t80db9trtbvrstnxng61zgc1yxm3scbl"600
TXT"v=spf1 redirect=2wasn72u._spf._d.mim.ec"600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 10m, NS 10m. The NS TTL at the parent is 1h and in the zone 10m; 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