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azubiyo.de

Checked 2026-10-21 21:34 UTC · first added 2026-10-21
✗Problems found Score 66 of 100

Domain & DNS

warn

20 passed 2 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: desi.ns.cloudflare.com: "2026.10.2"; tony.ns.cloudflare.com: "2026.10.2". 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

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Full report

Domain & DNS report for azubiyo.de ›

Mail

fail

22 passed 6 warn 1 failed

Areas

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

Problems

  • ✗
    Weak DKIM key
    DKIM · RSA keys shorter than 1024 bits can be cracked and are ignored by receivers (RFC 8301): default (768 bits), dkim (768 bits), mail (768 bits), email (768 bits), k1 (768 bits), google (768 bits), zoho (768 bits), mx (768 bits), key (768 bits), mta (768 bits), pm (768 bits), dkim-smtp (768 bits), s1 (768 bits), s2 (768 bits). Rotate to a 2048-bit key.
    #23
  • !
    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
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    Subdomains unprotected (sp=none)
    DMARC · DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.
    #20
  • !
    Key in test mode
    DKIM · These keys have t=y, so receivers treat DKIM failures as a test: default, dkim, mail, email, k1, google, zoho, mx, key, mta, pm, dkim-smtp, s1, s2. 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

✗

Full report

Mail report for azubiyo.de ›