Domain report: proserve.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

pass

ns.pro-serve.be, ns.pro-serve.eu, ns.proserve.nl, ns.proserve.org

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns.pro-serve.be, ns.pro-serve.eu, ns.proserve.nl, ns.proserve.org
NS in the zone: ns.pro-serve.be, ns.pro-serve.eu, ns.proserve.nl, ns.proserve.org

Nameserver	Addresses	Network (AS)	Glue
ns.pro-serve.be	3.255.55.103 2a05:d018:746:6e01:d78a:2cec:2a57:9d57	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	-
ns.pro-serve.eu	80.84.227.131 2001:828:13e9:1:131::1	AS31586 AS-TBNLTN - Signet B.V., NL AS31586 AS-TBNLTN - Signet B.V., NL	-
ns.proserve.nl	18.185.250.139 2a05:d014:1c00:3a01:fd5:10dd:4412:e478	AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US	18.185.250.139 2a05:d014:1c00:3a01:fd5:10dd:4412:e478
ns.proserve.org	81.4.77.196 2001:828:13e9:1000:196::1	AS31586 AS-TBNLTN - Signet B.V., NL AS31586 AS-TBNLTN - Signet B.V., NL	-

Checks

✓ 4 nameservers #6

Delegated to ns.pro-serve.be, ns.pro-serve.eu, ns.proserve.nl, ns.proserve.org.
✓ Parent and zone agree #7

The parent delegation and the zone's NS records list the same nameservers.
✓ Glue present and correct #8

Glue is published for the nameservers inside the zone: ns.proserve.nl.
✓ 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 4 IPv4 /24s and 3 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS16509 (AMAZON-02 - Amazon.com, Inc., US): 4 addresses; AS31586 (AS-TBNLTN - Signet B.V., NL): 4 addresses.
✓ Nameserver names under 4 TLDs #12

Nameserver names use the TLDs .be, .eu, .nl, .org.
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns.pro-serve.be 3.255.55.103	NOERROR, 24 ms, authoritative	no	yes / yes	refused	-
ns.pro-serve.be 2a05:d018:746:6e01:d78a:2cec:2a57:9d57	NOERROR, 23 ms, authoritative	no	yes / yes	refused	-
ns.pro-serve.eu 80.84.227.131	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-
ns.pro-serve.eu 2001:828:13e9:1:131::1	NOERROR, 11 ms, authoritative	no	yes / yes	refused	-
ns.proserve.nl 18.185.250.139	NOERROR, 5 ms, authoritative	no	yes / yes	refused	-
ns.proserve.nl 2a05:d014:1c00:3a01:fd5:10dd:4412:e478	NOERROR, 5 ms, authoritative	no	yes / yes	refused	-
ns.proserve.org 81.4.77.196	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-
ns.proserve.org 2001:828:13e9:1000:196::1	NOERROR, 10 ms, authoritative	no	yes / yes	refused	-

Checks

✓ All respond #14

All 8 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

warn

serial 2026102026 · primary ns1.dn-s.nl

Found

Primary (MNAME): ns1.dn-s.nl
Contact (RNAME): nic.virtualregistrar.nl
Serial: 2026102026
Refresh / retry: 28800 s / 7200 s
Expire: 322400 s
Negative TTL: 300 s

Serial per nameserver

Nameserver	Serial
ns.pro-serve.be (3.255.55.103)	2026102026
ns.pro-serve.be (2a05:d018:746:6e01:d78a:2cec:2a57:9d57)	2026102026
ns.pro-serve.eu (80.84.227.131)	2026102026
ns.pro-serve.eu (2001:828:13e9:1:131::1)	2026102026
ns.proserve.nl (18.185.250.139)	2026102026
ns.proserve.nl (2a05:d014:1c00:3a01:fd5:10dd:4412:e478)	2026102026
ns.proserve.org (81.4.77.196)	2026102026
ns.proserve.org (2001:828:13e9:1000:196::1)	2026102026

Checks

✓ Serial 2026102026 everywhere #22

All nameservers serve the same version of the zone.
!

Unusual SOA timers

expire 89h33m20s is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 8h, retry 2h, expire 89h33m20s, negative TTL 5m.

#23
i

Hidden master

The primary nameserver ns1.dn-s.nl is not listed as a nameserver: a hidden master that only feeds the public secondaries. That is a common setup; make sure it is not reachable for zone transfers from outside.

#24
✓ Contact nic@virtualregistrar.nl #25

The SOA RNAME nic.virtualregistrar.nl means nic@virtualregistrar.nl.
✓ Date-based serial #26

The serial 2026102026 follows the YYYYMMDDnn convention (2026-10-20).

DNSSEC

warn

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC3
NSEC3: 1 iterations, 1-byte salt
Signatures valid until: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
64954	RSASHA256 (8)	SHA256 116A2027CC3F224C…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
64954	KSK (257)	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 64954 (SHA256).
✓ Modern algorithms #29

Key algorithms: RSASHA256 (8).
✓ 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 1 iteration and a 1-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

info

20 records at the apex

Found

Read from: 3.255.55.103:53

Type	Value	TTL
SOA	ns1.dn-s.nl. nic.virtualregistrar.nl. 2026102026 28800 7200 322400 300	299
NS	ns.proserve.org.	80551
NS	ns.pro-serve.eu.	80551
NS	ns.pro-serve.be.	80551
NS	ns.proserve.nl.	80551
A	37.97.254.22	42385
AAAA	2a01:7c8:3:1337::22	63656
MX	10 mx.spamfilter.io.	3600
TXT	"MS=ms23223005"	86400
TXT	"MS=ms60527420"	86400
TXT	"MS=ms11921656"	86400
TXT	"v=spf1 a mx include:_spf.proserve.nl include:_spf2.proserve.nl include:_spf.afasonline.nl include:_spf.transip.email include:_spf.transip.nl include:_spf.premiumantispam.nl include:9458045.spf04.hubspotemail.net ~all"	86400
TXT	"2tNI8wNE2s8WWe22g81yfIAP3s32h+krxhNalszUrP6GKn6N3TcqWFYBOgndt8y6+NDDHwzVXTDtJKHODlPxHg=="	86400
TXT	"MS=ms98331503"	86400
TXT	"MS=264E2B85923369FC030F8BF1F6B1374F1DB80AC5"	86400
TXT	"MS=ms25162249"	86400
TXT	"RT1vY3fQ9cn7XZNUSQgv/G/8X/KYI/MFONI69TPGAYlkT0zSgHB+TWb8FPDqUaDMtfRZhP8p9E+hjb+qldM/iQ=="	86400
TXT	"1password-site-verification=SJQWRV7YXVFJVDX2LRPIADDD7E"	86400
TXT	"detectify-verification=e017f53100af030a52a03b850307f7b0"	86400
TXT	"MS=ms37972846"	86400

Checks

✓ TTLs within range #32

TTLs: A 11h46m25s, AAAA 17h40m56s, MX 1h, NS 22h22m31s. The NS TTL at the parent is 1h and in the zone 22h22m31s; 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.
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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