SurfaceMap › r › rostock.de

rostock.de

Checked 2026-10-22 00:01 UTC · first added 2026-10-21
✗Problems found Score 69 of 100

Domain & DNS

fail

19 passed 3 warn 1 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): primary.ns.uni-rostock.de.
    #9
  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: primary.ns.uni-rostock.de; only in the zone: george.ns.uni-rostock.de, ringo.ns.uni-rostock.de. deneb.dfn.de, george.ns.uni-rostock.de, ringo.ns.uni-rostock.de, rz.rostock.de report NS deneb.dfn.de george.ns.uni-rostock.de ringo.ns.uni-rostock.de rz.rostock.de.
    #7
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: rz.rostock.de: "9.20.15". 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 rostock.de ›

Mail

warn

23 passed 4 warn 0 failed

Areas

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

Problems

  • !
    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: stadt4.rostock.de, stadt5.rostock.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

Recent checks

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Full report

Mail report for rostock.de ›