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merca20.com

Checked 2026-10-22 09:50 UTC · first added 2026-10-21
!Passed with warnings Score 85 of 100

Domain & DNS

warn

27 passed 1 warn 0 failed

Areas

iRegistration iDelegation !Nameservers ✓SOA ✓DNSSEC iRecords

Problems

  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: rick.ns.cloudflare.com: "2026.10.2"; zara.ns.cloudflare.com: "2026.10.2". Hide or replace the version string.
    #17

Recent checks

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Full report

Domain & DNS report for merca20.com ›

Mail

warn

25 passed 4 warn 0 failed

Areas

iSPF !DMARC !DKIM ✓DNSSEC ✓MX !TLS iBIMI

Problems

  • !
    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: k1 (1024 bits). Rotate to a 2048-bit key.
    #23
  • !
    Report address not authorized
    DMARC · These report addresses are in another domain that has not agreed to receive your reports, so receivers will not send them: mailto:sergio@cecarini.com (needs merca20.com._report._dmarc.cecarini.com). Ask the report provider to publish the record, or check the address.
    #29
  • !
    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 merca20.com ›