SurfaceMap › s › s-bb.nl

s-bb.nl

Checked 2026-10-21 21:25 UTC · first added 2026-10-21
!Passed with warnings Score 88 of 100

Domain & DNS

warn

29 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: AAAA (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 2d; resolvers may use either.
    #32

Recent checks

!

Full report

Domain & DNS report for s-bb.nl ›

Mail

warn

29 passed 3 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
  • !
    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

!

Full report

Mail report for s-bb.nl ›