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nfn.nl

Checked 2026-10-22 14:42 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

28 passed 0 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation ✓Nameservers ✓SOA ✓DNSSEC iRecords

Recent checks

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Domain & DNS report for nfn.nl ›

Mail

warn

25 passed 5 warn 0 failed

Areas

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

Problems

  • !
    9 of 10 DNS lookups, with problems
    SPF · SPF record needs 9 DNS lookups (limit is 10). Problems found: include:spf.allsolutions.nl does not exist or has no records.
    #2
  • !
    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: selector1 (1024 bits), s2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    1 void lookup
    SPF · 1 include/redirect target does not exist or has no records (limit is 2). This usually is a stale include; remove it.
    #26
  • !
    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

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