SurfaceMap › h › hochschule-biberach.de

hochschule-biberach.de

Checked 2026-10-21 22:50 UTC · first added 2026-10-21
✗Problems found Score 63 of 100

Domain & DNS

warn

21 passed 4 warn 0 failed

Areas

iRegistration !Delegation !Nameservers ✓SOA !DNSSEC ✓Records

Problems

  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only in the zone: dns2.hochschule-bc.de, dns5.belwue.de. dns1.belwue.de, dns1.hochschule-bc.de, dns2.hochschule-bc.de, dns3.belwue.de, dns5.belwue.de report NS dns1.belwue.de dns1.hochschule-bc.de dns2.hochschule-bc.de dns3.belwue.de dns5.belwue.de.
    #7
  • !
    Glue differs from the zone
    Delegation · The addresses at the parent (glue) differ from the addresses in the zone: dns1.hochschule-bc.de (glue 193.196.3.3, 2001:7c0:b00:1030::11, zone 193.196.3.3, 2001:7c0:b00:9082::53:1). Update the glue at your registrar.
    #8
  • !
    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)"; dns1.hochschule-bc.de: "9.18.39-0ubuntu0.24.04.8-Ubuntu"; dns2.hochschule-bc.de: "9.18.39-0ubuntu0.24.04.7-Ubuntu"; dns3.belwue.de: "PowerDNS Authoritative Server 4.5.5 (built Dec 8 2022 18:24:18 by root@a309361b6303)"; dns5.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
  • !
    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 hochschule-biberach.de ›

Mail

fail

22 passed 5 warn 1 failed

Areas

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

Problems

  • ✗
    No DKIM keys published
    DKIM · _domainkey.hochschule-biberach.de does not exist (NXDOMAIN), so no DKIM keys are published. DKIM helps prevent email spoofing. Configure DKIM with your email service provider.
    #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: a3231.mx.srv.dfn.de, b3231.mx.srv.dfn.de, c3231.mx.srv.dfn.de
    #11
  • !
    No aggregate reports (rua)
    DMARC · DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...
    #19
  • !
    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 hochschule-biberach.de ›