Domain report: zeist.nl

Registration

info

.nl country-code

Found

TLD: .nl (country-code)
ICANN policies apply: no

Lookup error: https://rdap.sidn.nl/domain/zeist.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/zeist.nl returned HTTP 429

#3

Delegation

info

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

Found

Parent zone: nl
Delegation from: ns1.dns.nl (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

Nameserver	Addresses	Network (AS)	Glue
ns0.transip.net	195.135.195.195 2a01:7c8:dddd:195::195	AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL	-
ns1.transip.nl	195.8.195.195 2a01:7c8:7000:195::195	AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL	195.8.195.195 2a01:7c8:7000:195::195
ns2.transip.eu	37.97.199.195 2a01:7c8:f:c1f::195	AS20857 TRANSIP-AS - Signet B.V., NL AS20857 TRANSIP-AS - Signet B.V., NL	-

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.
✓ 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 3 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): 6 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

6 of 6 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns0.transip.net 195.135.195.195	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns0.transip.net 2a01:7c8:dddd:195::195	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns1.transip.nl 195.8.195.195	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns1.transip.nl 2a01:7c8:7000:195::195	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns2.transip.eu 37.97.199.195	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns2.transip.eu 2a01:7c8:f:c1f::195	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-

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.
✓ 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 2026101500 · primary ns0.transip.net

Found

Primary (MNAME): ns0.transip.net
Contact (RNAME): hostmaster.transip.nl
Serial: 2026101500
Refresh / retry: 86400 s / 1800 s
Expire: 2419200 s
Negative TTL: 300 s

Serial per nameserver

Nameserver	Serial
ns0.transip.net (195.135.195.195)	2026101500
ns0.transip.net (2a01:7c8:dddd:195::195)	2026101500
ns1.transip.nl (195.8.195.195)	2026101500
ns1.transip.nl (2a01:7c8:7000:195::195)	2026101500
ns2.transip.eu (37.97.199.195)	2026101500
ns2.transip.eu (2a01:7c8:f:c1f::195)	2026101500

Checks

✓ Serial 2026101500 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 2026101500 follows the YYYYMMDDnn convention (2026-10-15).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 0 iterations, 8-byte salt
Signatures valid until: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
56396	ECDSAP256SHA256 (13)	SHA256 DD18C8B970BA8DCF…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
56396	KSK (257)	ECDSAP256SHA256 (13)
28329	ZSK (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 56396 (SHA256).
✓ Modern algorithms #29

Key algorithms: ECDSAP256SHA256 (13).
✓ Signatures valid until 2026-11-05 #30

The earliest DNSKEY/SOA signature expires at 2026-11-05 00:00 UTC.
!

NSEC3 with extra iterations or salt

NSEC3 uses 0 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.

#31

Records

warn

39 records at the apex

Found

Read from: 195.135.195.195:53

Type	Value	TTL
SOA	ns0.transip.net. hostmaster.transip.nl. 2026101500 86400 1800 2419200 300	3600
NS	ns2.transip.eu.	86400
NS	ns0.transip.net.	86400
NS	ns1.transip.nl.	86400
A	185.71.61.164	60
AAAA	2a03:38a0:61:164::1	60
MX	0 zeist-nl.mail.protection.outlook.com.	60
TXT	"3357916430beff154448ec8cb07cd52b520153c9c23b1067f1447a1f95bbfb4b"	60
TXT	"345efaf830bba1e4db8887a90a72be6784b992e1caf6388b273b05ea7b60fdd6"	60
TXT	"3ee570fd3ec00545eabfdba9481a486b7ab9a46193cfb70058e46440d5807d0d"	60
TXT	"49e65e450ebbede917fe86af99218f2dda062104a5e4e4a3f8d09b3104cf282a"	60
TXT	"4b938721aba162bc1ea527df0486c0f5c093f587b5b8e9b18b00db946d1865ff"	60
TXT	"86ac1e35e9d9c862e78da4a43d92334eee50ba9c8c215883bf6d577fdc586518"	60
TXT	"Dk44D2hiJcbrS6AvEmWHLNUFqgbjbZKHTdX8NkHXhlGOnb6ByopIIt46BemO23YD"	60
TXT	"MS=ms14443280"	60
TXT	"NSRoW66m5pTr5sCo7xO4Zx5nDZlM9RBshiVSmo4dOhxEssrp0bN3i7PrSdb6VGNk"	60
TXT	"QLrVj/QwF73fPbhQ3ACdlowGiE1hDNL47+jRMBz4xPU2Vjr+l9hXXdYkVcuasx3FyzxjRi5li2TgDKFpmV4bRw=="	60
TXT	"QuoVadis=83c81352-50f9-4a0a-915f-197b9f51acd8"	60
TXT	"WC2yf7QcGdPCmfLsNR08uFOnAv3j8b45WScNxiYoEOR7KCZCQsLfXAtx94RniTfC"	60
TXT	"YOT8N8rxTJMFoOcFARJKr22XhWgdt46kxgBKuKWpt9b5hgEtd9Mii0IgLakhavRs"	60
TXT	"YVfOVRtQ9KzSOELFnsvUxNBlf8zbi74YjaXvMAgLGOHjQQuvvvBw7ief4O1eXwPs"	60
TXT	"YfvHsCjHVqXGC2t2rGyIUxneHLPvrLYmlpbYhxXVrDWsgvTVIRM6CSvF2ldToh5h"	60
TXT	"a96b98ea1db9e0cfb593707f5522b11677920c7404d15146d1c53ef9ea1ae3b6"	60
TXT	"a9EZKXPvRMz40sagg32SRMb1AQbtFky306y0TastDR9kR55UmIBj5BQKYPtqhox2"	60
TXT	"apple-domain-verification=VQbw3c513nkAx4TO"	60
TXT	"brevo-code:ff5b4733857c957c8fe95ffe1432ac29"	60
TXT	"f5725efad703f7efc536dddce9e081af5f92f7b81a9f839875620e691fea7258"	60
TXT	"gMnQuB6t0d2z0eiKeSTtYfxkSHCYumulSrDj3jSAOpv9rm70EhucPng9uZQYXyO3"	60
TXT	"qMV6OXUKTDXJjk4t039cvPW8vJ0x5yUHcFWxrSZgG9RhtHttDcH65HjUv7DSwPs8"	60
TXT	"rhino_accounts=aca1df52389bfbcf9a99d4599a694a1a"	60
TXT	"tZ2WPtxDWcme0CwLHmfUr7BFJStubcdNFLDjNQElb9bu87Q7eZkT0JTdSus2FKrC"	60
TXT	"v=spf1 include:spf.protection.outlook.com include:_spf.zivver.com include:spf.topdesk.net ip4:212.178.114.177 ip4:212.178.114.178 ip4:195.35.215.64/26 ip4:195.35.215.116 ip4:5.22.248.113 ip4:5.22.252.68 ip4:5.39.185.0/24 ip4:20.47.149.138 ip4:23.249.208.0" "/20 ip4:23.251.224.0/19 ip4:51.4.72.0/24 ip4:51.4.80.0/27 ip4:51.5.72.0/24 ip4:51.5.80.0/27 ip4:52.82.172.0/22 ip4:54.240.0.0/17 ip4:69.169.224.0/20 ip4:76.223.176.0/20 ip4:78.31.119.16 ip4:82.204.37.98 ip4:84.241.182.106 ip4:85.90.72.66 ip4:92.42.235.0/2" "4 ip4:80.112.198.186/32 ip4:80.112.193.138/32 ip4:13.79.21.104 ip4:40.127.200.64 include:spf1.zeist.nl -all"	60
CAA	0 issue "certsign.ro"	60
CAA	0 iodef "mailto:admin@zeist.nl"	60
CAA	0 issue "quovadisglobal.com"	60
CAA	0 issue "comodoca.com"	60
CAA	0 issue "letsencrypt.org"	60
CAA	0 issue "digicert.com"	60
CAA	0 issue "kpn.com"	60

Checks

!

Very low TTLs

These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (1m), MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.

#32
✓ 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: certsign.ro, quovadisglobal.com, comodoca.com, letsencrypt.org, digicert.com, kpn.com.