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dethleffs.de

Checked 2026-10-21 22:13 UTC · first added 2026-10-21
!Passed with warnings Score 91 of 100

Domain & DNS

warn

26 passed 1 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA iDNSSEC !Records

Problems

  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (3m8s). Low TTLs are useful just before a planned change.
    #32

Recent checks

!

Full report

Domain & DNS report for dethleffs.de ›

Mail

warn

28 passed 2 warn 0 failed

Areas

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

Problems

  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    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 dethleffs.de ›