SurfaceMap › r › rabjerg.de

rabjerg.de

Checked 2026-10-21 23:52 UTC · first added 2026-10-21
✗Problems found Score 59 of 100

Domain & DNS

fail

22 passed 2 warn 1 failed

Areas

iRegistration iDelegation iNameservers ✓SOA ✗DNSSEC iRecords

Problems

  • ✗
    Signatures expired
    DNSSEC · The DNSSEC signatures expired at 2026-03-04 16:30 UTC; validating resolvers reject the zone.
    #30
  • !
    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
  • !
    NSEC3 with extra iterations or salt
    DNSSEC · NSEC3 uses 0 iterations and a 8-byte salt. RFC 9276 recommends 0 iterations and no salt: extra iterations cost resolvers CPU and add no real protection, and some validators treat high counts as insecure.
    #31

Recent checks

✗

Full report

Domain & DNS report for rabjerg.de ›

Mail

fail

24 passed 5 warn 1 failed

Areas

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

Problems

  • ✗
    Signatures expired
    DNSSEC · DNSKEY signatures expired at 2026-03-04T16:30:00Z. Validating resolvers will fail to resolve this domain.
    #21
  • !
    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
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mail.rabjerg.de
    #11
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: mail (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 rabjerg.de ›