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hs-merseburg.de

Checked 2026-10-21 22:51 UTC · first added 2026-10-21
✗Problems found Score 59 of 100

Domain & DNS

warn

20 passed 4 warn 0 failed

Areas

iRegistration !Delegation !Nameservers ✓SOA !DNSSEC !Records

Problems

  • !
    Glue differs from the zone
    Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns.hs-merseburg.de (glue 149.205.5.50, zone 149.205.5.50, 2001:638:912:105::50). 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: ns.hs-merseburg.de: "9.16.23-RH". 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
  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: MX (1m). Low TTLs are useful just before a planned change.
    #32

Recent checks

!

Full report

Domain & DNS report for hs-merseburg.de ›

Mail

fail

16 passed 3 warn 2 failed

Areas

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

Problems

  • ✗
    No DMARC record
    DMARC · No DMARC record was found for this domain. DMARC is essential for preventing email spoofing. Add a DMARC record with p=reject or at least p=quarantine.
    #5
  • ✗
    No DKIM keys published
    DKIM · _domainkey.hs-merseburg.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
  • !
    Addresses without reverse DNS
    MX · These MX addresses have no PTR record, which many receivers treat as a spam signal: 2001:638:912:f33::2:1 (mx1.hs-merseburg.de), 2001:638:912:f33::2:2 (mx2.hs-merseburg.de). Ask your hosting provider to set one.
    #30
  • !
    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 hs-merseburg.de ›