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bibliotheca-open.de

Checked 2026-10-21 21:40 UTC · first added 2026-10-21
✗Problems found Score 71 of 100

Domain & DNS

warn

24 passed 1 warn 0 failed

Areas

iRegistration iDelegation !Nameservers ✓SOA ✓DNSSEC iRecords

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: michelle.ns.cloudflare.com: "2026.10.2"; nico.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.
    #17

Recent checks

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Full report

Domain & DNS report for bibliotheca-open.de ›

Mail

fail

2 passed 2 warn 2 failed

Areas

✗SPF ✗DMARC !DKIM ✓DNSSEC !MX 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 SPF record
    SPF · No SPF record was found for this domain. SPF is important for preventing email spoofing. Add an SPF record to specify which servers are authorized to send email for your domain.
    #6
  • !
    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
  • !
    No MX records
    MX · No MX records found. If this domain is used for email, add MX records to specify mail servers. If it never receives mail, publish a null MX ("MX 0 .").
    #9

Recent checks

✗

Full report

Mail report for bibliotheca-open.de ›