SurfaceMap › t › thuenen.de

thuenen.de

Checked 2026-10-22 00:40 UTC · first added 2026-10-21
✗Problems found Score 63 of 100

Domain & DNS

fail

18 passed 3 warn 1 failed

Areas

iRegistration !Delegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Zone transfer allowed
    Nameservers · These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: fermat.it.vti.bund.de (134.110.5.32): 280 records; fermat.thuenen.de (134.110.5.32): 280 records; zuse.it.vti.bund.de (134.110.5.10): 280 records; zuse.thuenen.de (134.110.5.10): 280 records. Restrict zone transfers to your secondary servers.
    #18
  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: fermat.it.vti.bund.de, zuse.it.vti.bund.de; only in the zone: fermat.thuenen.de, zuse.thuenen.de. deneb.dfn.de, fermat.it.vti.bund.de, fermat.thuenen.de, zuse.it.vti.bund.de, zuse.thuenen.de report NS deneb.dfn.de fermat.thuenen.de zuse.thuenen.de.
    #7
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: fermat.it.vti.bund.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu"; fermat.thuenen.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu"; zuse.it.vti.bund.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu"; zuse.thuenen.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu". 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

✗

Full report

Domain & DNS report for thuenen.de ›

Mail

warn

23 passed 6 warn 0 failed

Areas

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

Problems

  • !
    Policy: quarantine
    DMARC · DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #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: a1481.mx.srv.dfn.de, b1481.mx.srv.dfn.de, c1481.mx.srv.dfn.de
    #11
  • !
    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
  • !
    Not configured
    TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35

Recent checks

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Full report

Mail report for thuenen.de ›