infrabel.be

Checked 22 October 2026, 06:40 UTC · via 8.8.8.8
✗Problems found
23 passed 2 warnings 1 failed 3 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

pass

auth1.dns.cogentco.com, auth2.dns.cogentco.com, dns.infrabel.be, ns3.arcadiz.net, ns4.arcadiz.be, secdns.infrabel.be

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
auth1.dns.cogentco.com, auth2.dns.cogentco.com, dns.infrabel.be, ns3.arcadiz.net, ns4.arcadiz.be, secdns.infrabel.be
NS in the zone
auth1.dns.cogentco.com, auth2.dns.cogentco.com, dns.infrabel.be, ns3.arcadiz.net, ns4.arcadiz.be, secdns.infrabel.be
NameserverAddressesNetwork (AS)Glue
auth1.dns.cogentco.com66.28.0.14 2001:550:1:a::dAS174 COGENT-174 - Cogent Communications, LLC, US AS174 COGENT-174 - Cogent Communications, LLC, US-
auth2.dns.cogentco.com66.28.0.30 2001:550:1:b::dAS174 COGENT-174 - Cogent Communications, LLC, US AS174 COGENT-174 - Cogent Communications, LLC, US-
dns.infrabel.be195.177.247.210 2a04:4720:f000:5::4AS31511 B-RAIL-BE-AS - Infrabel NV, BE AS31511 B-RAIL-BE-AS - Infrabel NV, BE195.177.247.210 2a04:4720:f000:5::4
ns3.arcadiz.net46.182.193.226 2a0b:5e05::2AS50309 ARCADIZ - Arcadiz Telecom NV, BE AS50309 ARCADIZ - Arcadiz Telecom NV, BE-
ns4.arcadiz.be94.142.134.226 2a0c:1005::2AS51696 ARCADIZ - Arcadiz Telecom NV, BE AS51696 ARCADIZ - Arcadiz Telecom NV, BE94.142.134.226 2a0c:1005::2
secdns.infrabel.be195.177.247.211 2a04:4720:f000:5::5AS31511 B-RAIL-BE-AS - Infrabel NV, BE AS31511 B-RAIL-BE-AS - Infrabel NV, BE195.177.247.211 2a04:4720:f000:5::5

Checks

  • ✓ 6 nameservers #6
    Delegated to auth1.dns.cogentco.com, auth2.dns.cogentco.com, dns.infrabel.be, ns3.arcadiz.net, ns4.arcadiz.be, secdns.infrabel.be.
  • ✓ Parent and zone agree #7
    The parent delegation and the zone's NS records list the same nameservers.
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: dns.infrabel.be, secdns.infrabel.be.
  • ✓ 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.
  • ✓ 4 autonomous systems #11
    The nameservers are spread over: AS174 (COGENT-174 - Cogent Communications, LLC, US): 4 addresses; AS31511 (B-RAIL-BE-AS - Infrabel NV, BE): 4 addresses; AS50309 (ARCADIZ - Arcadiz Telecom NV, BE): 2 addresses; AS51696 (ARCADIZ - Arcadiz Telecom NV, BE): 2 addresses.
  • ✓ Nameserver names under 3 TLDs #12
    Nameserver names use the TLDs .be, .com, .net.
  • ✓ All reachable over IPv6 #13
    Every nameserver has an IPv6 address.

Nameservers

fail

10 of 12 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
auth1.dns.cogentco.com 66.28.0.14NOERROR, 13 ms, authoritativenoyes / yesrefusedCogent_DNS
auth1.dns.cogentco.com 2001:550:1:a::dNOERROR, 13 ms, authoritativenoyes / yesrefusedCogent_DNS
auth2.dns.cogentco.com 66.28.0.30NOERROR, 12 ms, authoritativenoyes / yesrefusedCogent_DNS
auth2.dns.cogentco.com 2001:550:1:b::dNOERROR, 12 ms, authoritativenoyes / yesrefusedCogent_DNS
dns.infrabel.be 195.177.247.210NOERROR, 14 ms, authoritativenoyes / yesrefused-
dns.infrabel.be 2a04:4720:f000:5::4no responsenono / no--
ns3.arcadiz.net 46.182.193.226NOERROR, 13 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
ns3.arcadiz.net 2a0b:5e05::2NOERROR, 17 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
ns4.arcadiz.be 94.142.134.226NOERROR, 17 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
ns4.arcadiz.be 2a0c:1005::2NOERROR, 19 ms, authoritativenoyes / yesrefusedPowerDNS Authoritative Server 4.7.3
secdns.infrabel.be 195.177.247.211NOERROR, 14 ms, authoritativenoyes / yesrefused-
secdns.infrabel.be 2a04:4720:f000:5::5no responsenono / no--

Checks

  • ✗
    Nameservers not responding
    These addresses did not answer, so resolvers waste time on timeouts: dns.infrabel.be (2a04:4720:f000:5::4): read udp [2a01:4f8:1c1c:eebf::1]:45901->[2a04:4720:f000:5::4]:53: i/o timeout; secdns.infrabel.be (2a04:4720:f000:5::5): read udp [2a01:4f8:1c1c:eebf::1]:51313->[2a04:4720:f000:5::5]:53: i/o timeout.
    #14
  • ✓ All authoritative #15
    Every responding nameserver answers authoritatively for the zone.
  • ✓ No recursion #16
    The nameservers do not answer recursive queries for other domains.
  • !
    Software version disclosed
    These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns3.arcadiz.net: "PowerDNS Authoritative Server 4.7.3"; ns4.arcadiz.be: "PowerDNS Authoritative Server 4.7.3". Hide or replace the version string.
    #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 2026101401 · primary dns.infrabel.be

Found

Primary (MNAME)
dns.infrabel.be
Contact (RNAME)
hostmaster.infrabel.be
Serial
2026101401
Refresh / retry
10800 s / 3600 s
Expire
1814400 s
Negative TTL
3600 s

Serial per nameserver

NameserverSerial
auth1.dns.cogentco.com (66.28.0.14)2026101401
auth1.dns.cogentco.com (2001:550:1:a::d)2026101401
auth2.dns.cogentco.com (66.28.0.30)2026101401
auth2.dns.cogentco.com (2001:550:1:b::d)2026101401
dns.infrabel.be (195.177.247.210)2026101401
ns3.arcadiz.net (46.182.193.226)2026101401
ns3.arcadiz.net (2a0b:5e05::2)2026101401
ns4.arcadiz.be (94.142.134.226)2026101401
ns4.arcadiz.be (2a0c:1005::2)2026101401
secdns.infrabel.be (195.177.247.211)2026101401

Checks

  • ✓ Serial 2026101401 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 21d, negative TTL 1h.
  • ✓ Primary is a public nameserver #24
    The primary nameserver dns.infrabel.be is one of the listed nameservers.
  • ✓ Contact hostmaster@infrabel.be #25
    The SOA RNAME hostmaster.infrabel.be means hostmaster@infrabel.be.
  • ✓ Date-based serial #26
    The serial 2026101401 follows the YYYYMMDDnn convention (2026-10-14).

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

23 records at the apex

Found

Read from
66.28.0.14:53
TypeValueTTL
SOAdns.infrabel.be. hostmaster.infrabel.be. 2026101401 10800 3600 1814400 36003600
NSauth2.dns.cogentco.com.3600
NSns4.arcadiz.be.3600
NSns3.arcadiz.net.3600
NSdns.infrabel.be.3600
NSauth1.dns.cogentco.com.3600
NSsecdns.infrabel.be.3600
A185.30.252.1153600
MX10 infrabel-be.mail.protection.outlook.com.3600
TXT"MS=ms68861172"3600
TXT"msfpkey=27dzykd6fqp6hwzsl1k1el9mo"3600
TXT"docusign=ad3ae128-0eb2-47bf-a563-ef38d4cebf9a"3600
TXT"spf2.0/pra" "include:spf.flexmail.eu" "?all"3600
TXT"apple-domain-verification=ijS8ChL2CShnLaid"3600
TXT"google-site-verification=12zjbU0Bzy3zxMQ3WnxywE62MToOuEv9qcpjJSX29Tg"3600
TXT"gdv=39b156b5"3600
TXT"docusign=91cd080d-46d2-4aa3-aff5-8fb7ab8289bf"3600
TXT"jcWNRZH5cRSl/vi/Rv1BkE3AA/yvinL27vyfhqBbWJApXjI1wEfshoU9MC/bxqAjpmXL3/DI35JZzY3VF6jLiA=="3600
TXT"jamf-site-verification=dQ2vqUiDngBlTRyAAU92Xg"3600
TXT"google-site-verification=7uDPQhPgePdqPqIzJZzMpEFSGwHTeyIq3mrqeUvhNO4"3600
TXT"v=spf1 include:spf.protection.outlook.com ip4:185.30.252.63 -all"3600
TXT"_globalsign-domain-verification=VJi65dU-g2jDtLv2lYERXTrrwGzN6ygJ1BIKEc_VT8"3600
TXT"p9eBfoXnPhL5/XGcjehqkYztDrzLJn3zhJXlQvxKngmcHwE2oKKP/7G5rfjtJQcuagO7tYAaZTDgI1RDp7ux2A=="3600

Checks

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