unique.nl

Checked 22 October 2026, 16:50 UTC · via 8.8.8.8
iAll checks passed
28 passed 0 warnings 0 failed 5 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns-c6-01.cloudenabler.eu, ns-c6-01.cloudenabler.io, ns-c6-01.cloudenabler.net, ns-c6-01.cloudenabler.org

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns-c6-01.cloudenabler.eu, ns-c6-01.cloudenabler.io, ns-c6-01.cloudenabler.net, ns-c6-01.cloudenabler.org
NS in the zone
ns-c6-01.cloudenabler.eu, ns-c6-01.cloudenabler.io, ns-c6-01.cloudenabler.net, ns-c6-01.cloudenabler.org
NameserverAddressesNetwork (AS)Glue
ns-c6-01.cloudenabler.eu205.251.192.195 2600:9000:5300:c300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-c6-01.cloudenabler.io205.251.199.164 2600:9000:5307:a400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-c6-01.cloudenabler.net205.251.195.105 2600:9000:5303:6900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-c6-01.cloudenabler.org205.251.197.161 2600:9000:5305:a100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-c6-01.cloudenabler.eu, ns-c6-01.cloudenabler.io, ns-c6-01.cloudenabler.net, ns-c6-01.cloudenabler.org.
  • ✓ 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 4 IPv4 /24s and 4 IPv6 /48s.
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS16509 (AMAZON-02 - Amazon.com, Inc., US): 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
  • ✓ Nameserver names under 4 TLDs #12
    Nameserver names use the TLDs .eu, .io, .net, .org.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-c6-01.cloudenabler.eu 205.251.192.195NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.eu 2600:9000:5300:c300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.io 205.251.199.164NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.io 2600:9000:5307:a400::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.net 205.251.195.105NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.net 2600:9000:5303:6900::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.org 205.251.197.161NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-c6-01.cloudenabler.org 2600:9000:5305:a100::1NOERROR, 4 ms, authoritativenoyes / yesrefused-

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

pass

serial 1 · primary ns-c6-01.cloudenabler.eu

Found

Primary (MNAME)
ns-c6-01.cloudenabler.eu
Contact (RNAME)
awsdns-hostmaster.amazon.com
Serial
1
Refresh / retry
7200 s / 900 s
Expire
1209600 s
Negative TTL
86400 s

Serial per nameserver

NameserverSerial
ns-c6-01.cloudenabler.eu (205.251.192.195)1
ns-c6-01.cloudenabler.eu (2600:9000:5300:c300::1)1
ns-c6-01.cloudenabler.io (205.251.199.164)1
ns-c6-01.cloudenabler.io (2600:9000:5307:a400::1)1
ns-c6-01.cloudenabler.net (205.251.195.105)1
ns-c6-01.cloudenabler.net (2600:9000:5303:6900::1)1
ns-c6-01.cloudenabler.org (205.251.197.161)1
ns-c6-01.cloudenabler.org (2600:9000:5305:a100::1)1

Checks

  • ✓ Serial 1 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 2h, retry 15m, expire 14d, negative TTL 1d.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns-c6-01.cloudenabler.eu is one of the listed nameservers.
  • ✓ Contact awsdns-hostmaster@amazon.com #25
    The SOA RNAME awsdns-hostmaster.amazon.com means awsdns-hostmaster@amazon.com.
  • ✓ Counter serial #26
    The serial 1 is a plain counter.

DNSSEC

info

Signed, DS published at parent

Found

Validated by resolver
yes
Denial of existence
NSEC
Signatures valid until
22 October 2026

DS at the parent

Key tagAlgorithmDigestMatches a key
56241ECDSAP256SHA256 (13)SHA256 5E533A0FA38BCD3A…yes

DNSKEY in the zone

Key tagRoleAlgorithm
42211ZSK (256)ECDSAP256SHA256 (13)
61869ZSK (256)ECDSAP256SHA256 (13)
56241KSK (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 56241 (SHA256).
  • ✓ Modern algorithms #29
    Key algorithms: ECDSAP256SHA256 (13).
  • ✓ Short-lived signatures (online signing) #30
    Signatures are valid for 2h0m0s and created on demand; the current one was made at 2026-10-22 15:50 UTC and expires at 2026-10-22 18:05 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

17 records at the apex

Found

Read from
205.251.192.195:53
TypeValueTTL
SOAns-c6-01.cloudenabler.eu. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-c6-01.cloudenabler.eu.172800
NSns-c6-01.cloudenabler.io.172800
NSns-c6-01.cloudenabler.net.172800
NSns-c6-01.cloudenabler.org.172800
A89.106.200.13600
AAAA2a12:5240::13600
MX10 unique-nl.mail.protection.outlook.com.21600
TXT"500tihitc6g43ogem46p3lfp76"3600
TXT"5nfpgq8l8694g6qq225dhdmbuo"3600
TXT"MS=ms33839794"3600
TXT"facebook-domain-verification=dk5cw3i6qo31413ggjqmw5aiooqhwx"3600
TXT"google-site-verification=IberbTlwyqL-9elXys7H-Og_SFQ56HN0poIXgQseU64"3600
TXT"knowbe4-site-verification=a4d0818f07f3a7b9133277b637dea1bf"3600
TXT"qcrd7p5h3uef07nhign4pekpmd"3600
TXT"unique-web-prd.azurewebsites.net"3600
TXT"v=spf1 include:_spf.rgfstaffing.nl -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 1h, AAAA 1h, MX 6h, NS 2d. The NS TTL at the parent is 1h and in the zone 2d; 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.
  • 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