SurfaceMap › h › houten.nl

houten.nl

Checked 2026-10-22 13:51 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

29 passed 2 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration ✓Delegation ✓Nameservers ✓SOA !DNSSEC !Records

Problems

  • !
    Signatures expire soon
    DNSSEC · The earliest signature expires at 2026-10-29 00:00 UTC (in 154h0m0s). Check that automatic re-signing works.
    #30
  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: MX (12s), NS (4m59s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 4m59s; resolvers may use either.
    #32

Recent checks

!

Full report

Domain & DNS report for houten.nl ›

Mail

error

27 passed 4 warn 0 failed 1 errors

lookups failed for mta-sts; results are incomplete

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
  • !
    Signatures expire in 154h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-29T00:00:00Z (in 154h0m0s). Check that re-signing works.
    #21
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Not configured
    TLS · MTA-STS or DANE is used without TLS-RPT, so you get no reports when senders fail to deliver because of TLS problems. Publish _smtp._tls TXT "v=TLSRPTv1; rua=mailto:...".
    #35

Recent checks

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Full report

Mail report for houten.nl ›