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imbc.com

Checked 2026-10-22 09:15 UTC · first added 2026-10-21
✗Problems found Score 59 of 100

Domain & DNS

fail

21 passed 2 warn 1 failed

Areas

iRegistration !Delegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Open recursion
    Nameservers · These nameservers resolve names for anyone, which makes them usable for DNS amplification attacks and cache poisoning: ns.imbc.com (121.254.134.99), ns2.imbc.com (121.254.133.100). Disable recursion on authoritative servers.
    #16
  • !
    No IPv6
    Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13
  • !
    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

✗

Full report

Domain & DNS report for imbc.com ›

Mail

fail

19 passed 5 warn 1 failed

Areas

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

Problems

  • ✗
    Policy: none (monitoring only)
    DMARC · DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.
    #4
  • !
    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
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: kr1-aspmx1.worksmobile.com, kr1-aspmx2.worksmobile.com
    #11
  • !
    Report address not authorized
    DMARC · These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:jwkim@imbc.co.kr (needs imbc.com._report._dmarc.imbc.co.kr). Ask the report provider to publish the record, or check the address.
    #29
  • !
    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 imbc.com ›