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intermediair.nl

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

Domain & DNS

error

24 passed 3 warn 0 failed 1 errors

lookups failed for rdap; results are incomplete

Areas

iRegistration iDelegation !Nameservers !SOA iDNSSEC !Records

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: eur2.akam.net: "48878.32"; eur5.akam.net: "48878.26"; eur6.akam.net: "41824.8"; ns1-125.akam.net: "41824.6"; ns1-125.akam.net: "41824.5"; ns1-25.akam.net: "41824.5"; ns1-25.akam.net: "41824.11"; usc2.akam.net: "48878.29"; use2.akam.net: "41824.8"; use5.akam.net: "48878.33"; use5.akam.net: "48878.32". Hide or replace the version string.
    #17
  • !
    Unusual SOA timers
    SOA · refresh 15m is outside 20m–1d. Current values: refresh 15m, retry 10m, expire 14d, negative TTL 5m.
    #23
  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 15m; resolvers may use either.
    #32

Recent checks

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Full report

Domain & DNS report for intermediair.nl ›

Mail

warn

28 passed 4 warn 0 failed

Areas

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

Problems

  • !
    Signatures expire in 65h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-24T14:14:29Z (in 65h0m0s). Check that re-signing works.
    #21
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: google (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
  • !
    No certificate (a=)
    BIMI · The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.
    #38

Recent checks

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Full report

Mail report for intermediair.nl ›