SurfaceMap › f › fritz-berger.de

fritz-berger.de

Checked 2026-10-21 22:31 UTC · first added 2026-10-21
✗Problems found Score 46 of 100

Domain & DNS

fail

19 passed 4 warn 2 failed

Areas

iRegistration ✗Delegation ✗Nameservers !SOA !DNSSEC iRecords

Problems

  • ✗
    Nameserver names don't resolve
    Delegation · These nameservers have no A or AAAA record, so they can't be reached (lame delegation): cs01.fritz-berger.de.
    #9
  • ✗
    Zone transfer allowed
    Nameservers · These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: ac01.fritz-berger.de (195.145.144.209): 122 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: cs01.fritz-berger.de. ac01.fritz-berger.de, pns.dtag.de, secondary006.dtag.net report NS ac01.fritz-berger.de pns.dtag.de secondary006.dtag.net.
    #7
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ac01.fritz-berger.de: "9.11.4-P2-RedHat-9.11.4-26.P2.el7_9.10". Hide or replace the version string.
    #17
  • !
    Unusual SOA timers
    SOA · refresh 10m is outside 20m–1d; retry 1h should be shorter than refresh 10m. Current values: refresh 10m, retry 1h, expire 1000h, negative TTL 12h.
    #23
  • !
    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 fritz-berger.de ›

Mail

fail

22 passed 4 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
  • !
    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: castor.fritz-berger.de, mailgw.fritz-berger.de
    #11
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: default (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    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 fritz-berger.de ›