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tio.nl

Checked 2026-10-22 16:32 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

25 passed 1 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

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: ashley.ns.cloudflare.com: "2026.10.2"; norman.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.
    #17

Recent checks

!

Full report

Domain & DNS report for tio.nl ›

Mail

fail

27 passed 2 warn 1 failed

Areas

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

Problems

  • ✗
    Weak DKIM key
    DKIM · RSA keys shorter than 1024 bits can be cracked and are ignored by receivers (RFC 8301): dkim (384 bits). Rotate to a 2048-bit key.
    #23
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: d326580.a.ess.de.barracudanetworks.com, d326580.b.ess.de.barracudanetworks.com
    #11
  • !
    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 tio.nl ›