SurfaceMap › n › nd.nl

nd.nl

Checked 2026-10-21 21:23 UTC · first added 2026-10-21
!Passed with warnings Score 88 of 100

Domain & DNS

warn

30 passed 1 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA !DNSSEC ✓Records

Problems

  • !
    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 nd.nl ›

Mail

warn

27 passed 3 warn 0 failed

Areas

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

Problems

  • !
    No aggregate reports (rua)
    DMARC · DMARC record has no rua tag, so you receive no aggregate reports about who sends mail as your domain. Add rua=mailto:...
    #19
  • !
    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 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 nd.nl ›