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isb.be

Checked 2026-10-22 06:40 UTC · first added 2026-10-21
!Passed with warnings Score 82 of 100

Domain & DNS

warn

21 passed 3 warn 0 failed

Areas

iRegistration !Delegation !Nameservers ✓SOA !DNSSEC iRecords

Problems

  • !
    No IPv6
    Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.clf.proximus.be: "2026.10.2"; ns2.clf.proximus.be: "2026.10.2"; ns3.clf.proximus.be: "2026.10.2". Hide or replace the version string.
    #17
  • !
    Not signed
    DNSSEC · 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

Recent checks

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Full report

Domain & DNS report for isb.be ›

Mail

warn

24 passed 3 warn 0 failed

Areas

✓SPF ✓DMARC !DKIM !DNSSEC ✓MX !TLS iBIMI

Problems

  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7
  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Not configured
    TLS · MTA-STS is not configured, so other mail servers fall back to unencrypted delivery when TLS fails or is stripped by an attacker. Publish a _mta-sts TXT record and a policy at https://mta-sts.<domain>/.well-known/mta-sts.txt.
    #32

Recent checks

!

Full report

Mail report for isb.be ›