Domain report: texel.nl

Registration

info

.nl country-code

Found

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

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

#3

Delegation

info

ns1.exsilia.net, ns2.exsilia.net

Found

Parent zone: nl
Delegation from: ns1.dns.nl (194.0.28.53)
NS at the parent: ns1.exsilia.net, ns2.exsilia.net
NS in the zone: ns1.exsilia.net, ns2.exsilia.net

Nameserver	Addresses	Network (AS)	Glue
ns1.exsilia.net	83.137.146.53 2a01:1b0:4418::53	AS31477 DUOCAST-AS - Duocast B.V., NL AS31477 DUOCAST-AS - Duocast B.V., NL	-
ns2.exsilia.net	91.209.7.53 2a01:1b1:4418::53	AS39292 DUOCASTBACKUP-AS - Duocast B.V., NL AS39292 DUOCASTBACKUP-AS - Duocast B.V., NL	-

Checks

i

2 nameservers

Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.exsilia.net, ns2.exsilia.net.

#6
✓ 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 2 IPv4 /24s and 2 IPv6 /48s.
✓ 2 autonomous systems #11

The nameservers are spread over: AS31477 (DUOCAST-AS - Duocast B.V., NL): 2 addresses; AS39292 (DUOCASTBACKUP-AS - Duocast B.V., NL): 2 addresses.
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

fail

4 of 4 addresses answer authoritatively

Found

Nameserver	Answer	Recursion	TCP / EDNS	AXFR	Version
ns1.exsilia.net 83.137.146.53	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns1.exsilia.net 2a01:1b0:4418::53	NOERROR, 13 ms, authoritative	no	yes / yes	refused	-
ns2.exsilia.net 91.209.7.53	NOERROR, 12 ms, authoritative	no	yes / yes	refused	-
ns2.exsilia.net 2a01:1b1:4418::53	NOERROR, 12 ms, authoritative	no	no / yes	refused	-

Checks

✓ All respond #14

All 4 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.
✗

No DNS over TCP

DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns2.exsilia.net (2a01:1b1:4418::53): read tcp [2a01:4f8:1c1c:eebf::1]:37824->[2a01:1b1:4418::53]:53: read: connection reset by peer.

#19
✓ EDNS supported #20

All nameservers support EDNS(0).
✓ Public addresses #21

All nameserver addresses are publicly routable.

SOA

pass

serial 2026102102 · primary ns1.exsilia.net

Found

Primary (MNAME): ns1.exsilia.net
Contact (RNAME): hostmaster.exsilia.net
Serial: 2026102102
Refresh / retry: 28800 s / 7200 s
Expire: 2419200 s
Negative TTL: 86400 s

Serial per nameserver

Nameserver	Serial
ns1.exsilia.net (83.137.146.53)	2026102102
ns1.exsilia.net (2a01:1b0:4418::53)	2026102102
ns2.exsilia.net (91.209.7.53)	2026102102
ns2.exsilia.net (2a01:1b1:4418::53)	2026102102

Checks

✓ Serial 2026102102 everywhere #22

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

SOA refresh 8h, retry 2h, expire 28d, negative TTL 1d.
✓ Primary is a public nameserver #24

The primary nameserver ns1.exsilia.net is one of the listed nameservers.
✓ Contact hostmaster@exsilia.net #25

The SOA RNAME hostmaster.exsilia.net means hostmaster@exsilia.net.
✓ Date-based serial #26

The serial 2026102102 follows the YYYYMMDDnn convention (2026-10-21).

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver: yes
Denial of existence: NSEC
Signatures valid until: 5 November 2026

DS at the parent

Key tag	Algorithm	Digest	Matches a key
55964	RSASHA256 (8)	SHA256 05BA2CFAB3120E60…	yes

DNSKEY in the zone

Key tag	Role	Algorithm
55964	KSK (257)	RSASHA256 (8)
37789	ZSK (256)	RSASHA256 (8)
8136	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 55964 (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.
i

NSEC

The zone uses NSEC, so its full contents can be listed by walking the NSEC chain. That is fine unless the names are sensitive.

#31

Records

pass

24 records at the apex

Found

Read from: 83.137.146.53:53

Type	Value	TTL
SOA	ns1.exsilia.net. hostmaster.exsilia.net. 2026102102 28800 7200 2419200 86400	900
NS	ns2.exsilia.net.	900
NS	ns1.exsilia.net.	900
A	185.144.224.28	300
A	31.7.6.87	300
A	31.7.0.60	300
AAAA	2a03:9700:8000:1::25	300
AAAA	2a03:9700:8000:1::23	300
AAAA	2a03:9700:8000:1::24	300
MX	10 texel-nl.p-v1.mx.microsoft.	900
TXT	"53039fb14d7ebcbfeb2f3f6de292bb0d8b3fb886c3669b5799efa4fa67bff2f7"	300
TXT	"DomainVerification=B0UXRTIR2TIXRSEDEJ76YXLU63NPCCDJCRK73LE0H50BBDKHEB5HOP5FFJ5VNDNU"	300
TXT	"MS=ms10147986"	300
TXT	"RXiFKFJyeuuuKIoFyHRfcSClQRNfXFd35ItU3widhn8ARaP3kGhXsT5IQ7TImXAi"	300
TXT	"apple-domain-verification=O1kftBilXwkHlKoO"	300
TXT	"autodesk-domain-verification=4NE_PbO0ZzTKm82j_qc_"	300
TXT	"google-site-verification=9HAsbcd_lCVGmBH9iwA33V2CppCO7bj2fXd7GtrLBNA"	300
TXT	"nordpass-domain-verification=950e22d78bc6ef045ffbe3d628b8fbf3ef645843109de4f1ec2b26aa6f402442"	300
TXT	"safegpt-domain-verification=b9f161dbaed448877c1b1d9555a8dae6c5bbda28fb2c17973cd15afdb8d2ebfc"	300
TXT	"v=NTA7516-1;startdate=2024-11;enddate=2027-11;provider=zorgmail;ntamx=10 relay.zorgmail.nl"	300
TXT	"v=spf1 include:spf.mail-scanner.eu include:spf.protection.outlook.com include:_spf.services.centric.eu include:_spf.zorgmail.nl include:spf.pinkprivate.cloud include:spf_cluster.yard.nl include:spf_servers.yard.nl include:_spf.secudoc.app " "include:spf.shockmedia.email ip4:87.233.198.3 ip6:2001:9a8:a6:0:87:233:198:3 ip6:2A07:CB84:3075:912:10:10:159:25 ip6:2A07:CB81:3711:815:10:10:160:25 ip6:2001:9a8:0:112:87:233:230:114 ip4:82.151.55.146" " ip4:145.131.250.189/27 ip4:185.8.52.254 ip4:185.8.53.254 ip4:176.74.239.242 ip4:213.208.232.101 ip4:87.233.230.114 -all"	300
CAA	0 issue "letsencrypt.org"	300
CAA	0 issue "sectigo.com"	300
CAA	0 issue "certsign.ro"	300

Checks

✓ TTLs within range #32

TTLs: A 5m, AAAA 5m, MX 15m, NS 15m. The NS TTL at the parent is 1h and in the zone 15m; 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: letsencrypt.org, sectigo.com, certsign.ro.