SurfaceMap › a › abk-stuttgart.de

abk-stuttgart.de

Checked 2026-10-21 21:27 UTC · first added 2026-10-21
✗Problems found Score 56 of 100

Domain & DNS

fail

21 passed 3 warn 1 failed

Areas

iRegistration iDelegation ✗Nameservers !SOA !DNSSEC iRecords

Problems

  • ✗
    Zone transfer allowed
    Nameservers · These nameservers send the complete zone to anyone who asks (AXFR), exposing all host names: rz-s-dns-sl.abk-stuttgart.de (193.197.154.16): 780 records. Restrict zone transfers to your secondary servers.
    #18
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: dns1.belwue.de: "PowerDNS Authoritative Server 4.5.5 (built Dec 8 2022 18:24:18 by root@a309361b6303)"; dns3.belwue.de: "PowerDNS Authoritative Server 4.5.5 (built Dec 8 2022 18:24:18 by root@a309361b6303)". Hide or replace the version string.
    #17
  • !
    Serials differ
    SOA · The nameservers serve different versions of the zone: 23067962 on dns1.belwue.de (129.143.2.10), dns1.belwue.de (2001:7c0::53:10), dns3.belwue.de (129.143.253.133), dns3.belwue.de (2001:7c0:0:253::133), rz-s-dns-sl.abk-stuttgart.de (193.197.154.16); 23067963 on rz-s-dns-ma.abk-stuttgart.de (193.197.154.14). This is normal for a few minutes after a change; if it lasts, zone transfers to the secondaries are failing.
    #22
  • !
    Signatures expire soon
    DNSSEC · The earliest signature expires at 2026-10-27 19:55 UTC (in 142h0m0s). Check that automatic re-signing works.
    #30

Recent checks

✗

Full report

Domain & DNS report for abk-stuttgart.de ›

Mail

fail

24 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
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: pmg.abk-stuttgart.de
    #11
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    Signatures expire in 142h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-27T19:55:13Z (in 142h0m0s). Check that re-signing works.
    #21
  • !
    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

✗

Full report

Mail report for abk-stuttgart.de ›