Domain report: pleio.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

warn

ns3.online.net, ns4.online.net

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns3.online.net, ns4.online.net
NS in the zone: ns0.dom.scw.cloud, ns1.dom.scw.cloud

Nameserver	Addresses	Network (AS)	Glue
ns0.dom.scw.cloud (zone only)	195.154.228.249 2001:bc8:5008:200::3	AS12876 AS12876 - Scaleway SAS, FR AS12876 AS12876 - Scaleway SAS, FR	-
ns1.dom.scw.cloud (zone only)	51.158.229.3 2001:bc8:1c08:203::9	AS12876 AS12876 - Scaleway SAS, FR AS12876 AS12876 - Scaleway SAS, FR	-
ns3.online.net (parent only)	51.158.137.141 2001:bc8:1410:200::2	AS12876 AS12876 - Scaleway SAS, FR AS12876 AS12876 - Scaleway SAS, FR	-
ns4.online.net (parent only)	51.158.137.141 2001:bc8:1410:200::2	AS12876 AS12876 - Scaleway SAS, FR AS12876 AS12876 - Scaleway SAS, FR	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns3.online.net, ns4.online.net.

#6
!

NS sets differ

The nameservers at the parent and in the zone should be the same. Only at the parent: ns3.online.net, ns4.online.net; only in the zone: ns0.dom.scw.cloud, ns1.dom.scw.cloud. ns0.dom.scw.cloud, ns1.dom.scw.cloud, ns3.online.net, ns4.online.net report NS ns0.dom.scw.cloud ns1.dom.scw.cloud.

#7
✓ 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 (AS12876 (AS12876 - Scaleway SAS, FR): 8 addresses). An outage or attack on that network affects all nameservers; large anycast providers mitigate this, but a secondary DNS provider adds independence.

#11
i

All nameserver names under .net

All nameserver names are under one TLD, so a problem with that TLD also makes the nameservers unreachable. Some operators use names under two TLDs for extra resilience.

#12
✓ All reachable over IPv6 #13

Every nameserver has an IPv6 address.

Nameservers

info

8 of 8 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns0.dom.scw.cloud 195.154.228.249	NOERROR, 23 ms, authoritative	no	yes / yes	refused	Online.net
ns0.dom.scw.cloud 2001:bc8:5008:200::3	NOERROR, 34 ms, authoritative	no	yes / yes	refused	-
ns1.dom.scw.cloud 51.158.229.3	NOERROR, 28 ms, authoritative	no	yes / yes	refused	-
ns1.dom.scw.cloud 2001:bc8:1c08:203::9	NOERROR, 21 ms, authoritative	no	yes / yes	refused	-
ns3.online.net 51.158.137.141	NOERROR, 30 ms, authoritative	no	yes / yes	refused	-
ns3.online.net 2001:bc8:1410:200::2	NOERROR, 27 ms, authoritative	no	yes / yes	refused	-
ns4.online.net 51.158.137.141	NOERROR, 28 ms, authoritative	no	yes / yes	refused	-
ns4.online.net 2001:bc8:1410:200::2	NOERROR, 32 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.
i

Identifying string disclosed

These nameservers answer version queries with a string that is not a version number: ns0.dom.scw.cloud: "Online.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 2026102203 · primary ns0.dom.scw.cloud

Found

Primary (MNAME): ns0.dom.scw.cloud
Contact (RNAME): hostmaster.pleio.nl
Serial: 2026102203
Refresh / retry: 86400 s / 7200 s
Expire: 604800 s
Negative TTL: 3600 s

Serial per nameserver

Nameserver	Serial
ns0.dom.scw.cloud (195.154.228.249)	2026102203
ns0.dom.scw.cloud (2001:bc8:5008:200::3)	2026102203
ns1.dom.scw.cloud (51.158.229.3)	2026102203
ns1.dom.scw.cloud (2001:bc8:1c08:203::9)	2026102203
ns3.online.net (51.158.137.141)	2026102203
ns3.online.net (2001:bc8:1410:200::2)	2026102203
ns4.online.net (51.158.137.141)	2026102203
ns4.online.net (2001:bc8:1410:200::2)	2026102203

Checks

✓ Serial 2026102203 everywhere #22

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

SOA refresh 1d, retry 2h, expire 7d, negative TTL 1h.
✓ Primary is a public nameserver #24

The primary nameserver ns0.dom.scw.cloud is one of the listed nameservers.
✓ Contact hostmaster@pleio.nl #25

The SOA RNAME hostmaster.pleio.nl means hostmaster@pleio.nl.
✓ Date-based serial #26

The serial 2026102203 follows the YYYYMMDDnn convention (2026-10-22).

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: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
31798	ECDSAP256SHA256 (13)	SHA256 A14FDA11188322A0…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
31798	KSK (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 31798 (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 as recommended #31

The zone uses NSEC3 with 0 iterations and no salt (RFC 9276).

Records

info

20 records at the apex

Found

Read from: 195.154.228.249:53

Type	Value	TTL
SOA	ns0.dom.scw.cloud. hostmaster.pleio.nl. 2026102203 86400 7200 604800 3600	3600
NS	ns0.dom.scw.cloud.	1800
NS	ns1.dom.scw.cloud.	1800
A	147.181.6.36	600
AAAA	2a04:9a00:1002:4054:f816:3eff:fe0b:e15	600
MX	10 mail.protonmail.ch.	86400
MX	20 mailsec.protonmail.ch.	86400
TXT	"v=spf1 include:_spf.protonmail.ch include:amazonses.com include:spf.eprov.nl -all"	600
TXT	"PLEIO"	600
TXT	"google-site-verification=aw3LG2jE_dzOYQvB9TkWRh60JKDTUVOGmV2KmwJIQno"	600
TXT	"346jvh7m7dldg7dlpxtpdscr2lz52ygq"	600
TXT	"protonmail-verification=f5252712466ce64b7033e4203c12c71b8c56bc14"	600
CAA	0 iodef "mailto:ssl@pleio.nl"	3600
CAA	0 issuewild "www.digicert.com"	3600
CAA	0 issue "letsencrypt.org"	3600
CAA	0 issue "quovadisglobal.com"	3600
CAA	0 issuewild "sectigo.com"	3600
CAA	0 issue "sectigo.com"	3600
CAA	0 issuewild "letsencrypt.org"	3600
CAA	0 issue "www.digicert.com"	3600

Checks

✓ TTLs within range #32

TTLs: A 10m, AAAA 10m, MX 1d, NS 30m. The NS TTL at the parent is 1h and in the zone 30m; resolvers may use either.
✓ No CNAME at the apex #33

The zone apex has no CNAME record.
i

Wildcard record

A random name under the zone resolves, so there is a wildcard (*) record. Typos and non-existent hosts resolve too, which can confuse mail and certificate checks.

#34
✓ CAA restricts issuance #35

Certificates may be issued by: www.digicert.com, letsencrypt.org, quovadisglobal.com, sectigo.com.