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iucn.nl

Checked 2026-10-22 14:00 UTC · first added 2026-10-21
!Passed with warnings Score 85 of 100

Domain & DNS

warn

27 passed 2 warn 0 failed

Areas

iRegistration iDelegation !Nameservers !SOA iDNSSEC iRecords

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: chloe.intakt.com: "9.18.39-0ubuntu0.22.04.7-Ubuntu"; kimberley.intakt.com: "9.18.39-0ubuntu0.22.04.6-Ubuntu"; ns2.intakt.com: "9.18.39-0ubuntu0.22.04.6-Ubuntu". Hide or replace the version string.
    #17
  • !
    Unusual SOA timers
    SOA · refresh 15m is outside 20m–1d; retry 15m should be shorter than refresh 15m. Current values: refresh 15m, retry 15m, expire 7d, negative TTL 1h.
    #23

Recent checks

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Full report

Domain & DNS report for iucn.nl ›

Mail

warn

26 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
  • !
    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
  • !
    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 iucn.nl ›