plus.nl

Checked 21 October 2026, 21:24 UTC · via 8.8.8.8
!Passed with warnings
23 passed 1 warning 0 failed 8 info

Registration

info

.nl country-code

Found

TLD
.nl (country-code)
ICANN policies apply
no
Lookup error: https://rdap.sidn.nl/domain/plus.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/plus.nl returned HTTP 429
    #3

Delegation

info

ns1.premium-dns.net, ns2.premium-dns.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns1.premium-dns.net, ns2.premium-dns.net
NS in the zone
ns1.premium-dns.net, ns2.premium-dns.net
NameserverAddressesNetwork (AS)Glue
ns1.premium-dns.net192.174.68.15 2001:67c:1bc::15AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-
ns2.premium-dns.net176.97.158.15 2001:67c:10b8::15AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT AS1921 RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT-

Checks

  • i
    2 nameservers
    Two nameservers meet the minimum; RFC 2182 recommends three or more for important zones: ns1.premium-dns.net, ns2.premium-dns.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.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS1921 (RCODEZERO-ANYCAST-SEC1-TLD - ipcom GmbH, AT): 4 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

4 of 4 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.premium-dns.net 192.174.68.15NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns1.premium-dns.net 2001:67c:1bc::15NOERROR, 5 ms, authoritativenoyes / yesrefusedRcodeZero DNS
ns2.premium-dns.net 176.97.158.15NOERROR, 12 ms, authoritativenoyes / yesrefusedreg-wie1
ns2.premium-dns.net 2001:67c:10b8::15NOERROR, 15 ms, authoritativenoyes / yesrefusedreg-wie1

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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.premium-dns.net: "RcodeZero DNS"; ns2.premium-dns.net: "reg-wie1".
    #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 2026101501 · primary ns1.premium-dns.net

Found

Primary (MNAME)
ns1.premium-dns.net
Contact (RNAME)
hostmaster.plus.nl
Serial
2026101501
Refresh / retry
86400 s / 3600 s
Expire
604800 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
ns1.premium-dns.net (192.174.68.15)2026101501
ns1.premium-dns.net (2001:67c:1bc::15)2026101501
ns2.premium-dns.net (176.97.158.15)2026101501
ns2.premium-dns.net (2001:67c:10b8::15)2026101501

Checks

  • ✓ Serial 2026101501 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 1d, retry 1h, expire 7d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.premium-dns.net is one of the listed nameservers.
  • ✓ Contact hostmaster@plus.nl #25
    The SOA RNAME hostmaster.plus.nl means hostmaster@plus.nl.
  • ✓ Date-based serial #26
    The serial 2026101501 follows the YYYYMMDDnn convention (2026-10-15).

DNSSEC

warn

Signed, but no DS at parent

Found

Validated by resolver
no
Denial of existence
NSEC
Signatures valid until
29 October 2026

DNSKEY in the zone

Key tagRoleAlgorithm
2065KSK (257)ECDSAP256SHA256 (13)

Checks

  • !
    Signed but not delegated securely
    The zone is signed but the parent has no DS record, so the signatures are not used. Publish the DS record at your registrar.
    #27
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Signatures valid until 2026-10-29 #30
    The earliest DNSKEY/SOA signature expires at 2026-10-29 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

info

20 records at the apex

Found

Read from
192.174.68.15:53
TypeValueTTL
SOAns1.premium-dns.net. hostmaster.plus.nl. 2026101501 86400 3600 604800 360086400
NSns1.premium-dns.net.3600
NSns2.premium-dns.net.3600
A45.60.124.267200
A45.60.130.267200
MX0 plus-nl.mail.protection.outlook.com.7200
TXT"MS=ms73999160"60
TXT"V$a^fE$_%oDTCrHTQu7g"60
TXT"m@AvGWarYs.afnkrr2uD"60
TXT"_9kc046a5ugqb2ddsjmupp1ax2yx0xl5"60
TXT"_hr56i1gkish6mceh8wjct6xpb3kh2yu"60
TXT"_lfv8hhaotsq8h5quqdvysipjyge02ty"60
TXT"_n7i9man53rksj7j3ql5435udujadtb3"60
TXT"_t51m76p8o5oli0mb4k0dvf37j0mfu7w"60
TXT"hes=4dcefacdf18a763da822722d591e0df7"60
TXT"TQaIfWhF8pSGjc+Qy+WndY2RzfbceaMbrK4FQc4lA8w="60
TXT"appledomain-verification=LqbIaXCe8BKnTXEXQjZXWRqgYtIAJU5HPoHBuKiMAbI"60
TXT"google-site-verification=X1GnISKo7jbgLbeXJ30nvvL3kUa9aZ0fSDMrrdu4f1I"60
TXT"_globalsign-domain-verification=glf0fTzxTN51Df4qD6dn1h66PrXtg5ZGKmCXbY8zLU"60
TXT"v=spf1 ip4:144.178.227.192/26 ip4:217.77.156.140 include:_u.plus.nl._spf.dmarclb.com -all"60

Checks

  • ✓ TTLs within range #32
    TTLs: A 2h, MX 2h, NS 1h.
  • ✓ No CNAME at the apex #33
    The zone apex has no CNAME record.
  • ✓ No wildcard #34
    Names that don't exist return NXDOMAIN.
  • i
    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