SurfaceMap › u › uni-bayreuth.de

uni-bayreuth.de

Checked 2026-10-22 00:50 UTC · first added 2026-10-21
✗Problems found Score 66 of 100

Domain & DNS

fail

21 passed 2 warn 1 failed

Areas

iRegistration iDelegation ✗Nameservers ✓SOA !DNSSEC ✓Records

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: btr0x4.rz.uni-bayreuth.de (132.180.15.4): read udp 46.225.38.91:37208->132.180.15.4:53: i/o timeout.
    #14
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: btr0x5.rz.uni-bayreuth.de: "9.5.0-P2". 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 uni-bayreuth.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
  • !
    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: mailgate-smtp1.uni-bayreuth.de, mailgate-smtp1.uni-bayreuth.de
    #11
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: mail (1024 bits), selector1 (1024 bits), selector2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Key in test mode
    DKIM · These keys have t=y, so receivers treat DKIM failures as a test: mail. Remove t=y once DKIM works.
    #24
  • !
    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 uni-bayreuth.de ›