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stylebook.de

Checked 2026-10-22 00:31 UTC · first added 2026-10-21
!Passed with warnings Score 70 of 100

Domain & DNS

warn

25 passed 3 warn 0 failed

Areas

iRegistration iDelegation !Nameservers ✓SOA !DNSSEC !Records

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-130.akam.net: "41824.11"; a1-130.akam.net: "41824.8"; a11-67.akam.net: "41824.10"; a11-67.akam.net: "41824.4"; a14-64.akam.net: "48878.26"; a14-64.akam.net: "48878.29"; a16-65.akam.net: "48878.29"; a16-65.akam.net: "48878.30"; a6-66.akam.net: "48878.31"; a6-66.akam.net: "48878.26"; a7-67.akam.net: "41824.9"; a7-67.akam.net: "41824.6". Hide or replace the version string.
    #17
  • !
    Signed but not delegated securely
    DNSSEC · The zone is signed but the parent has no DS record, so the signatures are not used. 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: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1d and in the zone 1h; resolvers may use either.
    #32

Recent checks

!

Full report

Domain & DNS report for stylebook.de ›

Mail

warn

23 passed 7 warn 0 failed

Areas

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

Problems

  • !
    Ends with ?all (neutral)
    SPF · SPF record uses ?all (neutral), which gives no protection against unauthorized senders. Use -all or ~all instead.
    #3
  • !
    Signed, but no DS at parent
    DNSSEC · The zone is signed (DNSKEY present) but the parent has no DS record, so the chain of trust is incomplete. Publish the DS record at your registrar.
    #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
  • !
    Signatures expire in 68h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-24T20:55:30Z (in 68h0m0s). Check that re-signing works.
    #21
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    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 stylebook.de ›