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securityheaders.com

Checked 2026-10-22 10:35 UTC · first added 2026-10-21
✗Problems found Score 81 of 100

Domain & DNS

warn

29 passed 1 warn 0 failed

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

Recent checks

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Mail

fail

29 passed 2 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: https://mta-sts.securityheaders.com/.well-known/mta-sts.txt returned HTTP 525.
    #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
  • !
    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

Recent checks

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