Domain report: rijswijk.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

info

ns.delft.nl, ns1.as41887.nl, ns2.as41887.eu, ns3.as41887.io, ns4.as41887.it

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns.delft.nl, ns1.as41887.nl, ns2.as41887.eu, ns3.as41887.io, ns4.as41887.it
NS in the zone: ns.delft.nl, ns1.as41887.nl, ns2.as41887.eu, ns3.as41887.io, ns4.as41887.it

Nameserver	Addresses	Network (AS)	Glue
ns.delft.nl	145.32.97.4	AS34108 BREEDBANDDELFT - Stichting Breedband Delft, NL	145.32.97.4
ns1.as41887.nl	94.228.129.129 2a00:d00:ff:129:94:228:129:129	AS41887 PROLOCATION - Prolocation B.V., NL AS41887 PROLOCATION - Prolocation B.V., NL	94.228.129.129 2a00:d00:ff:129:94:228:129:129
ns2.as41887.eu	65.108.92.144 2a01:4f9:c012:6c08::1	AS24940 HETZNER-AS - Hetzner Online GmbH, DE AS24940 HETZNER-AS - Hetzner Online GmbH, DE	-
ns3.as41887.io	165.227.154.158 2a03:b0c0:3:d0::50d:6001	AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US AS14061 DIGITALOCEAN-ASN - DigitalOcean, LLC, US	-
ns4.as41887.it	94.228.142.168 2a00:d01:ff:905:94:228:142:168	AS41887 PROLOCATION - Prolocation B.V., NL AS41887 PROLOCATION - Prolocation B.V., NL	-

Checks

✓ 5 nameservers #6

Delegated to ns.delft.nl, ns1.as41887.nl, ns2.as41887.eu, ns3.as41887.io, ns4.as41887.it.
✓ 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 5 IPv4 /24s and 4 IPv6 /48s.
✓ 4 autonomous systems #11

The nameservers are spread over: AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US): 2 addresses; AS24940 (HETZNER-AS - Hetzner Online GmbH, DE): 2 addresses; AS34108 (BREEDBANDDELFT - Stichting Breedband Delft, NL): 1 address; AS41887 (PROLOCATION - Prolocation B.V., NL): 4 addresses.
✓ Nameserver names under 4 TLDs #12

Nameserver names use the TLDs .eu, .io, .it, .nl.
i

Partly IPv6

These nameservers have no IPv6 address: ns.delft.nl.

#13

Nameservers

info

9 of 9 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.delft.nl 145.32.97.4	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns1.as41887.nl 94.228.129.129	NOERROR, 10 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns1.as41887.nl 2a00:d00:ff:129:94:228:129:129	NOERROR, 10 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns2.as41887.eu 65.108.92.144	NOERROR, 24 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns2.as41887.eu 2a01:4f9:c012:6c08::1	NOERROR, 25 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns3.as41887.io 165.227.154.158	NOERROR, 5 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns3.as41887.io 2a03:b0c0:3:d0::50d:6001	NOERROR, 5 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns4.as41887.it 94.228.142.168	NOERROR, 10 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net
ns4.as41887.it 2a00:d01:ff:905:94:228:142:168	NOERROR, 11 ms, authoritative	no	yes / yes	refused	Not disclosed - unix@prolocation.net

Checks

✓ All respond #14

All 9 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns1.as41887.nl: "Not disclosed - unix@prolocation.net"; ns2.as41887.eu: "Not disclosed - unix@prolocation.net"; ns3.as41887.io: "Not disclosed - unix@prolocation.net"; ns4.as41887.it: "Not disclosed - unix@prolocation.net".

#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 2025102769 · primary ns.delft.nl

Found

Primary (MNAME): ns.delft.nl
Contact (RNAME): postmaster.delft.nl
Serial: 2025102769
Refresh / retry: 3600 s / 600 s
Expire: 1814400 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns.delft.nl (145.32.97.4)	2025102769
ns1.as41887.nl (94.228.129.129)	2025102769
ns1.as41887.nl (2a00:d00:ff:129:94:228:129:129)	2025102769
ns2.as41887.eu (65.108.92.144)	2025102769
ns2.as41887.eu (2a01:4f9:c012:6c08::1)	2025102769
ns3.as41887.io (165.227.154.158)	2025102769
ns3.as41887.io (2a03:b0c0:3:d0::50d:6001)	2025102769
ns4.as41887.it (94.228.142.168)	2025102769
ns4.as41887.it (2a00:d01:ff:905:94:228:142:168)	2025102769

Checks

✓ Serial 2025102769 everywhere #22

All nameservers serve the same version of the zone.
✓ Timers within recommendations #23

SOA refresh 1h, retry 10m, expire 21d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns.delft.nl is one of the listed nameservers.
✓ Contact postmaster@delft.nl #25

The SOA RNAME postmaster.delft.nl means postmaster@delft.nl.
✓ Date-based serial #26

The serial 2025102769 follows the YYYYMMDDnn convention (2025-10-27).

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: 18 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
60616	RSASHA256 (8)	SHA256 FA8774C1BE13B695…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
60616	KSK (257)	RSASHA256 (8)
31341	ZSK (256)	RSASHA256 (8)

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 60616 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ Signatures valid until 2026-11-18 #30

The earliest DNSKEY/SOA signature expires at 2026-11-18 10:02 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

pass

23 records at the apex

Found

Read from: 145.32.97.4:53

Type	Value	TTL
SOA	ns.delft.nl. postmaster.delft.nl. 2025102769 3600 600 1814400 3600	86400
NS	ns4.as41887.it.	86400
NS	ns.delft.nl.	86400
NS	ns1.as41887.nl.	86400
NS	ns2.as41887.eu.	86400
NS	ns3.as41887.io.	86400
A	185.135.13.56	1800
AAAA	2a06:efc0:0:103::6	1800
MX	10 m2.rijswijk.nl.	300
MX	10 m1.rijswijk.nl.	300
TXT	"google-site-verification=He0AVUmuYSZcdwj-QyhLdfd5mzCEX3M3v0xw6CMX6NE"	300
TXT	"1YAKNUOc6b8rwk/G8n1vU4LGmjC/uFq3EyZI2nR052TEkSHavf/X+IZzJP7GBkgGJJcZ4TKxQeNgzKfo+5tWJg=="	300
TXT	"DomainVerification=DLJNCJCW3K86VNBDNW73KBMTXWF58E3X4HTC0QCA3AYKPJCTS8JOI79F1LN7T4WT"	300
TXT	"MS=ms66498033"	300
TXT	"MS=ms77117005"	300
TXT	"v=spf1 include:spf.rijswijk.nl.eu-zs8zcn3l.e1.dspf.app -all"	300
CAA	0 issue "pkioverheid.nl"	1800
CAA	0 iodef "mailto:netdelft@delft.nl"	1800
CAA	0 issue "letsencrypt.org"	1800
CAA	0 issue "sectigo.com"	1800
CAA	0 issue "certsign.ro"	1800
CAA	0 issue "kpn.com"	1800
CAA	0 issue "comodoca.com"	1800

Checks

✓ TTLs within range #32

TTLs: A 30m, AAAA 30m, 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.
✓ CAA restricts issuance #35

Certificates may be issued by: pkioverheid.nl, letsencrypt.org, sectigo.com, certsign.ro, kpn.com, comodoca.com.