ulb.be

Checked 22 October 2026, 07:20 UTC · via 8.8.8.8
!Passed with warnings
21 passed 2 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

warn

ns1.belnet.be, ns1.ulb.be, ns2.belnet.be, ns2.ulb.be, ns3.belnet.be

Found

Parent zone
be
Delegation from
a.nsset.be (194.0.6.1)
NS at the parent
ns1.belnet.be, ns1.ulb.be, ns2.belnet.be, ns2.ulb.be, ns3.belnet.be
NS in the zone
ns1.ulb.ac.be, ns1.ulb.be, ns2.ulb.ac.be, ns2.ulb.be
NameserverAddressesNetwork (AS)Glue
ns1.belnet.be (parent only)193.190.198.14 2001:6a8:3c80::14AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE193.190.198.14 2001:6a8:3c80::14
ns1.ulb.ac.be (zone only)164.15.254.1AS2611 BELNET - BELNET, BE-
ns1.ulb.be164.15.254.1AS2611 BELNET - BELNET, BE164.15.254.1
ns2.belnet.be (parent only)193.190.182.40 2001:6a8:3c80:c000::40AS2611 BELNET - BELNET, BE AS2611 BELNET - BELNET, BE193.190.182.40 2001:6a8:3c80:c000::40
ns2.ulb.ac.be (zone only)164.15.254.5AS2611 BELNET - BELNET, BE-
ns2.ulb.be164.15.254.5AS2611 BELNET - BELNET, BE164.15.254.5
ns3.belnet.be (parent only)194.58.196.32 2a01:3f1:832::53AS8674 NETNOD-IX - Netnod AB, SE AS8674 NETNOD-IX - Netnod AB, SE194.58.196.32 2a01:3f1:832::53

Checks

  • ✓ 5 nameservers #6
    Delegated to ns1.belnet.be, ns1.ulb.be, ns2.belnet.be, ns2.ulb.be, ns3.belnet.be.
  • !
    NS sets differ
    The nameservers at the parent and in the zone should be the same. Only at the parent: ns1.belnet.be, ns2.belnet.be, ns3.belnet.be; only in the zone: ns1.ulb.ac.be, ns2.ulb.ac.be. ns1.belnet.be, ns1.ulb.ac.be, ns1.ulb.be, ns2.belnet.be, ns2.ulb.ac.be, ns2.ulb.be, ns3.belnet.be report NS ns1.ulb.ac.be ns1.ulb.be ns2.ulb.ac.be ns2.ulb.be.
    #7
  • ✓ Glue present and correct #8
    Glue is published for the nameservers inside the zone: ns1.ulb.be, ns2.ulb.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 2 IPv6 /48s.
  • ✓ 2 autonomous systems #11
    The nameservers are spread over: AS2611 (BELNET - BELNET, BE): 8 addresses; AS8674 (NETNOD-IX - Netnod AB, SE): 2 addresses.
  • i
    All nameserver names under .be
    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
  • i
    Partly IPv6
    These nameservers have no IPv6 address: ns1.ulb.ac.be, ns1.ulb.be, ns2.ulb.ac.be, ns2.ulb.be.
    #13

Nameservers

info

10 of 10 addresses answer authoritatively

Found

NameserverAnswerRecursionTCP / EDNSAXFRVersion
ns1.belnet.be 193.190.198.14NOERROR, 17 ms, authoritativenoyes / yesrefusedFor me to know, for you to guess!
ns1.belnet.be 2001:6a8:3c80::14NOERROR, 17 ms, authoritativenoyes / yesrefusedFor me to know, for you to guess!
ns1.ulb.ac.be 164.15.254.1NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns1.ulb.be 164.15.254.1NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.belnet.be 193.190.182.40NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.belnet.be 2001:6a8:3c80:c000::40NOERROR, 12 ms, authoritativenoyes / yesrefused-
ns2.ulb.ac.be 164.15.254.5NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns2.ulb.be 164.15.254.5NOERROR, 13 ms, authoritativenoyes / yesrefused-
ns3.belnet.be 194.58.196.32NOERROR, 9 ms, authoritativenoyes / yesrefused-
ns3.belnet.be 2a01:3f1:832::53NOERROR, 9 ms, authoritativenoyes / yesrefused-

Checks

  • ✓ All respond #14
    All 10 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.
  • i
    Identifying string disclosed
    These nameservers answer version queries with a string that is not a version number: ns1.belnet.be: "For me to know, for you to guess!".
    #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 37135 · primary ns1.ulb.be

Found

Primary (MNAME)
ns1.ulb.be
Contact (RNAME)
resulb.ulb.ac.be
Serial
37135
Refresh / retry
10800 s / 3600 s
Expire
604800 s
Negative TTL
300 s

Serial per nameserver

NameserverSerial
ns1.belnet.be (193.190.198.14)37135
ns1.belnet.be (2001:6a8:3c80::14)37135
ns1.ulb.ac.be (164.15.254.1)37135
ns1.ulb.be (164.15.254.1)37135
ns2.belnet.be (193.190.182.40)37135
ns2.belnet.be (2001:6a8:3c80:c000::40)37135
ns2.ulb.ac.be (164.15.254.5)37135
ns2.ulb.be (164.15.254.5)37135
ns3.belnet.be (194.58.196.32)37135
ns3.belnet.be (2a01:3f1:832::53)37135

Checks

  • ✓ Serial 37135 everywhere #22
    All nameservers serve the same version of the zone.
  • ✓ Timers within recommendations #23
    SOA refresh 3h, retry 1h, expire 7d, negative TTL 5m.
  • ✓ Primary is a public nameserver #24
    The primary nameserver ns1.ulb.be is one of the listed nameservers.
  • ✓ Contact resulb@ulb.ac.be #25
    The SOA RNAME resulb.ulb.ac.be means resulb@ulb.ac.be.
  • ✓ Counter serial #26
    The serial 37135 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

26 records at the apex

Found

Read from
193.190.198.14:53
TypeValueTTL
SOAns1.ulb.be. resulb.ulb.ac.be. 37135 10800 3600 604800 300300
NSns2.ulb.ac.be.300
NSns1.ulb.ac.be.300
NSns1.ulb.be.300
NSns2.ulb.be.300
A164.15.242.30300
MX0 ulb-be.mail.protection.outlook.com.300
TXT"HARICA-s8w4lpcq9aRBL1ueqFu"300
TXT"brevo-code:b1414e0a234265a2faa294058248ae06"300
TXT"brevo-code:f21a06cd41810a30fc6a7917a17b9a0e"300
TXT"v=spf1 ip4:164.15.72.253 ip4:109.109.202.25 include:spf.protection.outlook.com include:amazonses.com include:spf-eu.exlibrisgroup.com include:servers.etarget-emailing.com include:25168807.spf01.hubspotemail.net include:inc.emailr.com -all"300
TXT"D4SHHxmeR3C6+tJPd1HxUcNGDOl6wvGqMYohL9f0dFpPvzxyu/rPR4qJCIJqrkpy70+Wuj6Oe5uqE6+T6Io8wg=="300
TXT"MS=ms83593679"300
TXT"HARICA-wt4iQuHvgkmZpnJ7gAK"300
TXT"work-accounts-domain-verification=v4JL2M9dtzkCMd48vIDHQaJ1d4NhxC"300
TXT"google-site-verification=hfcFQGj6kTHEOa4C5vRX-DWvXebEmTvmufZmDudSd_k"300
TXT"amazonses:TnLaCcpyKs0Jq8PsLK66/NjYIb2UOYivrewlD92OqZU="300
TXT"z6nphg60xz5r7qjkxdph826vfvg3f985"300
TXT"brevo-code:5679c50f66ebb144072857fd9e86b184"300
TXT"apple-domain-verification=XeS7tOwkAPh2pYDj"300
TXT"brevo-code:91810f4b5e72385ca81ea093d3c7f53f"300
TXT"brevo-code:e056adff02575bd8914df99f7ccb52f9"300
TXT"sendinblue-code:b0a0844f581f3b6067b4b293e028c3b9"300
TXT"druide-validation-domaine=bbb2e5385605b56cc70951b9f61b112d"300
TXT"google-site-verification=AsBUfojgi7ORnI8joM4DwnkOZDAPBxKj65u2RcZIK0s"300
TXT"HARICA-3wmYhsUvUv3iXw0sj8J"300

Checks

  • ✓ TTLs within range #32
    TTLs: A 5m, MX 5m, NS 5m. The NS TTL at the parent is 1d 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