radio10.nl

Checked 22 October 2026, 15:32 UTC · via 8.8.8.8
!Passed with warnings
23 passed 2 warnings 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/radio10.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/radio10.nl returned HTTP 429
    #3

Delegation

info

ns-1348.awsdns-40.org, ns-1819.awsdns-35.co.uk, ns-355.awsdns-44.com, ns-669.awsdns-19.net

Found

Parent zone
nl
Delegation from
ns1.dns.nl (194.0.28.53)
NS at the parent
ns-1348.awsdns-40.org, ns-1819.awsdns-35.co.uk, ns-355.awsdns-44.com, ns-669.awsdns-19.net
NS in the zone
ns-1348.awsdns-40.org, ns-1819.awsdns-35.co.uk, ns-355.awsdns-44.com, ns-669.awsdns-19.net
NameserverAddressesNetwork (AS)Glue
ns-1348.awsdns-40.org205.251.197.68 2600:9000:5305:4400::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-1819.awsdns-35.co.uk205.251.199.27 2600:9000:5307:1b00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-355.awsdns-44.com205.251.193.99 2600:9000:5301:6300::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-
ns-669.awsdns-19.net205.251.194.157 2600:9000:5302:9d00::1AS16509 AMAZON-02 - Amazon.com, Inc., US AS16509 AMAZON-02 - Amazon.com, Inc., US-

Checks

  • ✓ 4 nameservers #6
    Delegated to ns-1348.awsdns-40.org, ns-1819.awsdns-35.co.uk, ns-355.awsdns-44.com, ns-669.awsdns-19.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-1348.awsdns-40.org 205.251.197.68NOERROR, 3 ms, authoritativenoyes / yesrefused-
ns-1348.awsdns-40.org 2600:9000:5305:4400::1NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-1819.awsdns-35.co.uk 205.251.199.27NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-1819.awsdns-35.co.uk 2600:9000:5307:1b00::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-355.awsdns-44.com 205.251.193.99NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-355.awsdns-44.com 2600:9000:5301:6300::1NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns-669.awsdns-19.net 205.251.194.157NOERROR, 4 ms, authoritativenoyes / yesrefused-
ns-669.awsdns-19.net 2600:9000:5302:9d00::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-669.awsdns-19.net

Found

Primary (MNAME)
ns-669.awsdns-19.net
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-1348.awsdns-40.org (205.251.197.68)1
ns-1348.awsdns-40.org (2600:9000:5305:4400::1)1
ns-1819.awsdns-35.co.uk (205.251.199.27)1
ns-1819.awsdns-35.co.uk (2600:9000:5307:1b00::1)1
ns-355.awsdns-44.com (205.251.193.99)1
ns-355.awsdns-44.com (2600:9000:5301:6300::1)1
ns-669.awsdns-19.net (205.251.194.157)1
ns-669.awsdns-19.net (2600:9000:5302:9d00::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-669.awsdns-19.net 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

warn

28 records at the apex

Found

Read from
205.251.197.68:53
TypeValueTTL
SOAns-669.awsdns-19.net. awsdns-hostmaster.amazon.com. 1 7200 900 1209600 86400900
NSns-1348.awsdns-40.org.172800
NSns-1819.awsdns-35.co.uk.172800
NSns-355.awsdns-44.com.172800
NSns-669.awsdns-19.net.172800
A18.173.205.9260
A18.173.205.1360
A18.173.205.7060
A18.173.205.9160
AAAA2600:9000:2724:1e00:5:8013:6640:93a160
AAAA2600:9000:2724:c000:5:8013:6640:93a160
AAAA2600:9000:2724:8400:5:8013:6640:93a160
AAAA2600:9000:2724:6a00:5:8013:6640:93a160
AAAA2600:9000:2724:2000:5:8013:6640:93a160
AAAA2600:9000:2724:da00:5:8013:6640:93a160
AAAA2600:9000:2724:8200:5:8013:6640:93a160
AAAA2600:9000:2724:9800:5:8013:6640:93a160
MX10 mxa-004ed801.gslb.pphosted.com.3600
MX10 mxb-004ed801.gslb.pphosted.com.3600
TXT"MS=ms17042625"300
TXT"atlassian-domain-verification=5VSTPO8N3VbwyA1rG5th1Ug35qOYQnZuhg1h4tF89rRPz8w/5BIt8iiE1eVYSU/0"300
TXT"bw=Lywwk2RLNqSpqJlTqYk6HLESk16jaCO9Q1JNpdEE+/1g"300
TXT"elevenlabs=7QlvxutTkdJDzpRw2PlLDyLZ95DrbpTTuKLRqfhwtRo"300
TXT"facebook-domain-verification=zpng8b5fi2tl8ihjt8dghelwxvd5q9"300
TXT"google-site-verification=w3k8voCzC2C84V10azMRnxG8KxqTNucb_1BE7CO5Mh4"300
TXT"knowbe4-site-verification=30c3a242379a3f2de86e9a66555ec09c"300
TXT"openai-domain-verification=dv-Q1T2TLo63LGMSzlRCWCx7yAZ"300
TXT"v=spf1 include:spf.protection.outlook.com include:spf-004ed801.pphosted.com include:sendgrid.net include:amazonses.com include:mailgun.org -all"300

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m), AAAA (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2d; resolvers may use either.
    #32
  • ✓ 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