radiocontact.be

Checked 22 October 2026, 07:02 UTC · via 8.8.8.8
!Passed with warnings
20 passed 3 warnings 0 failed 6 info

Registration

info

.be country-code

Found

TLD
.be (country-code)
ICANN policies apply
no

Checks

  • i
    .be 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
    .be is delegated in the root zone and DNSSEC-signed.
  • i
    Registration data not available
    No registration data via RDAP: the registry of .be offers no RDAP service. Many ccTLD registries don't offer RDAP; check the registry's WHOIS instead.
    #3

Delegation

info

ns.cybernet-telecom.com, ns2.cybernet-telecom.com, ns3.cybernet-telecom.com

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
ns.cybernet-telecom.com, ns2.cybernet-telecom.com, ns3.cybernet-telecom.com
NS in the zone
ns.cybernet-telecom.com, ns2.cybernet-telecom.com, ns3.cybernet-telecom.com
NameserverAddressesNetwork (AS)Glue
ns.cybernet-telecom.com213.177.64.2 2a01:5b80:2:1::2AS13226 CYBERNET - CYBERNET SA, BE AS13226 CYBERNET - CYBERNET SA, BE-
ns2.cybernet-telecom.com213.177.65.2 2a01:5b80:2:2::2AS13226 CYBERNET - CYBERNET SA, BE AS13226 CYBERNET - CYBERNET SA, BE-
ns3.cybernet-telecom.com213.177.64.18 2a01:5b80:2:1::3AS13226 CYBERNET - CYBERNET SA, BE AS13226 CYBERNET - CYBERNET SA, BE-

Checks

  • ✓ 3 nameservers #6
    Delegated to ns.cybernet-telecom.com, ns2.cybernet-telecom.com, ns3.cybernet-telecom.com.
  • ✓ 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.
  • i
    One address family in one network
    all IPv6 addresses are in 2a01:5b80:2::/48, while the other address family is spread over several networks.
    #10
  • i
    All nameservers in one AS
    All nameserver addresses are announced by one network operator (AS13226 (CYBERNET - CYBERNET SA, BE): 6 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 .com
    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

pass

6 of 6 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns.cybernet-telecom.com 213.177.64.2NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns.cybernet-telecom.com 2a01:5b80:2:1::2NOERROR, 25 ms, authoritativenoyes / yesrefused-
ns2.cybernet-telecom.com 213.177.65.2NOERROR, 19 ms, authoritativenoyes / yesrefused-
ns2.cybernet-telecom.com 2a01:5b80:2:2::2NOERROR, 27 ms, authoritativenoyes / yesrefused-
ns3.cybernet-telecom.com 213.177.64.18NOERROR, 17 ms, authoritativenoyes / yesrefused-
ns3.cybernet-telecom.com 2a01:5b80:2:1::3NOERROR, 25 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 6 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

warn

serial 2026090401 · primary ns.cybernet-telecom.com

Found

Primary (MNAME)
ns.cybernet-telecom.com
Contact (RNAME)
dnsmaster.cybernet.be
Serial
2026090401
Refresh / retry
86400 s / 7200 s
Expire
1209600 s
Negative TTL
259200 s

Serial per nameserver

NameserverSerial
ns.cybernet-telecom.com (213.177.64.2)2026090401
ns.cybernet-telecom.com (2a01:5b80:2:1::2)2026090401
ns2.cybernet-telecom.com (213.177.65.2)2026090401
ns2.cybernet-telecom.com (2a01:5b80:2:2::2)2026090401
ns3.cybernet-telecom.com (213.177.64.18)2026090401
ns3.cybernet-telecom.com (2a01:5b80:2:1::3)2026090401

Checks

  • ✓ Serial 2026090401 everywhere #22
    All nameservers serve the same version of the zone.
  • !
    Unusual SOA timers
    negative caching TTL (minimum) 3d is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 1d, retry 2h, expire 14d, negative TTL 3d.
    #23
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns.cybernet-telecom.com is one of the listed nameservers.
  • ✓ Contact dnsmaster@cybernet.be #25
    The SOA RNAME dnsmaster.cybernet.be means dnsmaster@cybernet.be.
  • ✓ Date-based serial #26
    The serial 2026090401 follows the YYYYMMDDnn convention (2026-09-04).

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

15 records at the apex

Found

Read from
213.177.64.2:53
TypeValueTTL
SOAns.cybernet-telecom.com. dnsmaster.cybernet.be. 2026090401 86400 7200 1209600 259200259200
NSns3.cybernet-telecom.com.86400
NSns.cybernet-telecom.com.86400
NSns2.cybernet-telecom.com.86400
A2.57.173.5460
MX0 radiocontact-be.mail.protection.outlook.com.3600
TXT"facebook-domain-verification=f2purraswp7j1v80j72pwnfpl2r9al"3600
TXT"MS=ms35562835"3600
TXT"adobe-idp-site-verification=3abfd0f4756f7cb55460cce24d9421f8f84145bac88587d453a19a3453b4e6f5"3600
TXT"84UhAgkP/0aVY1nba/OeHm2cI8jMvqdRkn1xby7J9otkVce6zxVM9dglWIT8DdFfy2XaUgzPZTZPCWghiy3O1A=="3600
TXT"SdFFXtFdhMCSF3YDO886mmbWwtMnSpiI"3600
TXT"/2QdAhyzFYeNjxgKxtlq/buMaRs4KPsDE04NZXoXJdGCGE8isPPP6L+zyY0/pbN3rsHGikMyRJBCi2w+wsgVuQ=="3600
TXT"v=spf1 mx a ip4:193.105.106.69 ip4:193.105.106.70 ip4:193.105.106.142 ip4:193.105.106.143 ip4:193.105.106.160 ip4:193.105.106.158 ip4:193.105.106.159 include:spf.protection.outlook.com -all"3600
TXT"google-site-verification=_mh4e4Wo9Gypv5vcnCxu0-6GfiNe0Od8ZsImz-lvZTo"3600
TXT"brevo-code:73289bfa1f727fd00cfd2748d68f3ac1"3600

Checks

  • !
    Very low TTLs
    These records have a TTL below 5m, causing extra queries and slower lookups: A (1m). Low TTLs are useful just before a planned change.
    #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