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prometric.com

Checked 2026-10-22 10:21 UTC · first added 2026-10-21
✗Problems found Score 72 of 100

Domain & DNS

warn

28 passed 1 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: a1-73.akam.net: "41824.9"; a1-73.akam.net: "41824.10"; a11-66.akam.net: "41824.7"; a11-66.akam.net: "41824.10"; a12-64.akam.net: "48878.29"; a12-64.akam.net: "48878.26"; a14-66.akam.net: "48878.29"; a14-66.akam.net: "48878.33"; a20-64.akam.net: "48878.27"; a20-64.akam.net: "48878.30"; a5-67.akam.net: "41824.11"; a5-67.akam.net: "41824.4". Hide or replace the version string.
    #17

Recent checks

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Mail

fail

26 passed 5 warn 1 failed

Areas

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

Problems

  • ✗
    Policy not reachable
    TLS · The MTA-STS record exists but the policy could not be fetched, so senders ignore MTA-STS: Get "https://mta-sts.prometric.com/.well-known/mta-sts.txt": dial tcp: lookup mta-sts.prometric.com on 127.0.0.53:53: no such host.
    #33
  • !
    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
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    Signatures expire in 56h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-24T18:02:21Z (in 56h0m0s). Check that re-signing works.
    #21
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: selector1 (1024 bits), s2 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    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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