leonardo-hotels.nl

Checked 22 October 2026, 14:10 UTC · via 8.8.8.8
!Passed with warnings
24 passed 1 warning 0 failed 4 info

Registration

info

.nl country-code

Found

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

Delegation

info

ns-1281.awsdns-32.org, ns-1626.awsdns-11.co.uk, ns-503.awsdns-62.com, ns-905.awsdns-49.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns-1281.awsdns-32.org, ns-1626.awsdns-11.co.uk, ns-503.awsdns-62.com, ns-905.awsdns-49.net
NS in the zone
ns-1281.awsdns-32.org, ns-1626.awsdns-11.co.uk, ns-503.awsdns-62.com, ns-905.awsdns-49.net
NameserverAddressesNetwork (AS)Glue
ns-1281.awsdns-32.org205.251.197.1 2600:9000:5305:100::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1626.awsdns-11.co.uk205.251.198.90 2600:9000:5306:5a00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-503.awsdns-62.com205.251.193.247 2600:9000:5301:f700::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-905.awsdns-49.net205.251.195.137 2600:9000:5303:8900::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1281.awsdns-32.org, ns-1626.awsdns-11.co.uk, ns-503.awsdns-62.com, ns-905.awsdns-49.net.
  • ✓ 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 .com, .net, .org, .uk.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

pass

8 of 8 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns-1281.awsdns-32.org 205.251.197.1NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1281.awsdns-32.org 2600:9000:5305:100::1NOERROR, 8 ms, authoritativenoyes / yesrefused-
ns-1626.awsdns-11.co.uk 205.251.198.90NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1626.awsdns-11.co.uk 2600:9000:5306:5a00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-503.awsdns-62.com 205.251.193.247NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-503.awsdns-62.com 2600:9000:5301:f700::1NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns-905.awsdns-49.net 205.251.195.137NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-905.awsdns-49.net 2600:9000:5303:8900::1NOERROR, 6 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-1626.awsdns-11.co.uk

Found

Primary (MNAME)
ns-1626.awsdns-11.co.uk
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-1281.awsdns-32.org (205.251.197.1)1
ns-1281.awsdns-32.org (2600:9000:5305:100::1)1
ns-1626.awsdns-11.co.uk (205.251.198.90)1
ns-1626.awsdns-11.co.uk (2600:9000:5306:5a00::1)1
ns-503.awsdns-62.com (205.251.193.247)1
ns-503.awsdns-62.com (2600:9000:5301:f700::1)1
ns-905.awsdns-49.net (205.251.195.137)1
ns-905.awsdns-49.net (2600:9000:5303:8900::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-1626.awsdns-11.co.uk 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

warn

Not signed

Found

Validated by resolver
no

Checks

  • !
    Not signed
    The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Records

info

18 records at the apex

Found

Read from
205.251.197.1:53
TypeValueTTL
SOAns-1626.awsdns-11.co.uk. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1281.awsdns-32.org.300
NSns-1626.awsdns-11.co.uk.300
NSns-503.awsdns-62.com.300
NSns-905.awsdns-49.net.300
A99.83.192.18300
A166.117.30.247300
MX10 de-smtp-inbound-1.mimecast.com.3600
MX10 de-smtp-inbound-2.mimecast.com.3600
TXT"00D200000006yq7=1TBbO000000017O"3600
TXT"0ed1fe018abd78fdca217447b3ac9a2e9a8436b9dd"3600
TXT"DomainVerification=BZQFMJM7WKXLYQH0B8XPFRAU2I3PYEVXN8WKVF6BTSAUZ5IVHL7036CXCNXG54Y2"3600
TXT"MS=ms93812646"3600
TXT"apple-domain-verification=9VUcIIAgie3vQ7qV"3600
TXT"atlassian-domain-verification=sfC43FD0j97R6WPFQsGvnRVtR5qBmx9pP1YCQkULVCRm207v1dn3dSQRBKFqvSlP"3600
TXT"facebook-domain-verification=u1hevzkoo5r6w2b0pibom11gtjxrzy"3600
TXT"google-site-verification=lRtQ7KRQ1Z7yFxVdgAqJTkJ7p5khGX1b78Ye3eP3iJg"3600
TXT"v=spf1 include:spf.protection.outlook.com include:spf.eu.exclaimer.net include:de._netblocks.mimecast.com include:spf_c.oracleindustry.com ip4:194.29.235.180 ip4:176.95.1.20 include:spf.afas.online " "include:spf.ireshotels.com include:amazonses.com include:spf.mailjet.com include:spf.synxis.com -all"3600

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 1h, NS 5m. The NS TTL at the parent is 1h and in the zone 5m; 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