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rvo.nl

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

Domain & DNS

warn

26 passed 1 warn 0 failed

Areas

iRegistration iDelegation ✓Nameservers ✓SOA !DNSSEC iRecords

Problems

  • !
    NSEC3 with extra iterations or salt
    DNSSEC · NSEC3 uses 10 iterations and a 14-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

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Full report

Domain & DNS report for rvo.nl ›

Mail

warn

29 passed 3 warn 0 failed

Areas

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

Problems

  • !
    Signatures expire in 93h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-25T18:37:39Z (in 93h0m0s). Check that re-signing works.
    #21
  • !
    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

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Full report

Mail report for rvo.nl ›