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anwb.nl

Checked 2026-10-21 20:45 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

25 passed 2 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation !Nameservers iSOA !DNSSEC ✓Records

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-184.akam.net: "41824.7"; a2-64.akam.net: "48878.31"; a2-64.akam.net: "48878.32"; a24-66.akam.net: "48878.29"; a3-64.akam.net: "41824.9"; a3-64.akam.net: "41824.10"; a8-64.akam.net: "48878.30"; a8-64.akam.net: "48878.29"; a9-65.akam.net: "41824.8"; a9-65.akam.net: "41824.9". Hide or replace the version string.
    #17
  • !
    NSEC3 with extra iterations or salt
    DNSSEC · NSEC3 uses 10 iterations and a 6-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 anwb.nl ›

Mail

warn

25 passed 5 warn 0 failed

Areas

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

Problems

  • !
    Policy: quarantine
    DMARC · DMARC policy is set to 'quarantine'. Consider upgrading to 'reject' for stronger protection once you've verified legitimate emails are passing authentication.
    #4
  • !
    Subdomains unprotected (sp=none)
    DMARC · DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.
    #20
  • !
    Signatures expire in 81h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-25T05:32:08Z (in 81h0m0s). Check that re-signing works.
    #21
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: s2 (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

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Full report

Mail report for anwb.nl ›