hersenstichting.nl

Checked 21 October 2026, 21:21 UTC · via 8.8.8.8
✗Problems found
28 passed 1 warning 1 failed 5 info

Registration

fail

.nl country-code · team.blue nl B.V.

Found

TLD
.nl (country-code)
ICANN policies apply
no
Registrar
team.blue nl B.V.
Registered
25 February 2000
Last changed
15 October 2026
Status
active
Registry nameservers
ns0.transip.net, ns1.transip.nl, ns2.transip.eu
RDAP server
https://rdap.sidn.nl/
Lookup error: DNS query for nl failed: read udp 46.225.38.91:57536->8.8.8.8:53: i/o timeout

Checks

  • i
    Could not be checked
    The TLD lookup failed, so this could not be checked: DNS query for nl failed: read udp 46.225.38.91:57536->8.8.8.8:53: i/o timeout
    #1
  • ✗
    TLD not in the root zone
    .nl is not delegated in the root zone, so names under it can't be resolved on the public internet.
    #2
  • i
    Expiry date not published
    The registry does not publish the expiry date in RDAP. Check it with your registrar.
    #3
  • i
    No transfer lock
    The domain has no transfer lock (status: active). A registrar lock protects against unauthorized transfers.
    #4
  • ✓ Registry and delegation match #5
    The nameservers registered at the registry are the ones published in DNS.

Delegation

warn

ns0.transip.net, ns1.transip.nl, ns2.transip.eu

Found

Parent zone
nl
Delegation from
ns1.dns.nl (2001:678:2c:0:194:0:28:53)
NS at the parent
ns0.transip.net, ns1.transip.nl, ns2.transip.eu
NS in the zone
ns0.transip.net, ns1.transip.nl, ns2.transip.eu
NameserverAddressesNetwork (AS)Glue
ns0.transip.net195.135.195.195 2a01:7c8:dddd:195::195AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL-
ns1.transip.nl2a01:7c8:7000:195::195AS20857 195.8.195.195 2a01:7c8:7000:195::195
ns2.transip.eu37.97.199.195 2a01:7c8:f:c1f::195AS20857 TRANSIP-AS - Signet B.V., NL AS20857 -

Checks

  • ✓ 3 nameservers #6
    Delegated to ns0.transip.net, ns1.transip.nl, ns2.transip.eu.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • !
    Glue differs from the zone
    The addresses at the parent (glue) differ from the addresses in the zone: ns1.transip.nl (glue 195.8.195.195, 2a01:7c8:7000:195::195, zone 2a01:7c8:7000:195::195). Update the glue at your registrar.
    #8
  • ✓ 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 3 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS20857 (TRANSIP-AS - Signet B.V., NL): 5 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.
    #11
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .eu, .net, .nl.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

5 of 5 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns0.transip.net 195.135.195.195NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns0.transip.net 2a01:7c8:dddd:195::195NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.transip.nl 2a01:7c8:7000:195::195NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.transip.eu 37.97.199.195NOERROR, 25 ms, authoritativenoyes / yesrefused-
ns2.transip.eu 2a01:7c8:f:c1f::195NOERROR, 12 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 5 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.
  • ✓ No version disclosed #17
    The nameservers don't reveal their software version.
  • ✓ 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 2026101900 · primary ns0.transip.net

Found

Primary (MNAME)
ns0.transip.net
Contact (RNAME)
hostmaster.transip.nl
Serial
2026101900
Refresh / retry
86400 s / 1800 s
Expire
2419200 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns0.transip.net (195.135.195.195)2026101900
ns0.transip.net (2a01:7c8:dddd:195::195)2026101900
ns1.transip.nl (2a01:7c8:7000:195::195)2026101900
ns2.transip.eu (37.97.199.195)2026101900
ns2.transip.eu (2a01:7c8:f:c1f::195)2026101900

Checks

  • ✓ Serial 2026101900 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 30m, expire 28d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns0.transip.net is one of the listed nameservers.
  • ✓ Contact hostmaster@transip.nl #25
    The SOA RNAME hostmaster.transip.nl means hostmaster@transip.nl.
  • ✓ Date-based serial #26
    The serial 2026101900 follows the YYYYMMDDnn convention (2026-10-19).

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
56480ECDSAP256SHA256 (13)SHA256 F436648701599DCD…yes

DNSKEY in the zone

Key tagRoleAlgorithm
5504ZSK (256)ECDSAP256SHA256 (13)
56480KSK (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 56480 (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

9 records at the apex

Found

Read from
195.135.195.195:53
TypeValueTTL
SOAns0.transip.net. hostmaster.transip.nl. 2026101900 86400 1800 2419200 3003600
NSns2.transip.eu.86400
NSns1.transip.nl.86400
NSns0.transip.net.86400
A178.105.139.246300
MX5 hersenstichting-nl.mail.protection.outlook.com.3600
TXT"v=spf1 redirect=_s091820iz.sdmarc.net"300
TXT"nordpass-domain-verification=3917cc71b7143dc75460b6eebca5a55824c30dd32f158940d2d35c8a380f20c2"300
TXT"google-site-verification=Rf_XAbfuxJkkOWQB5AjvtUxoe4V0mXsXt18Q1koKAjA"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 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.
  • 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