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esiee.fr

Checked 2026-10-22 02:48 UTC · first added 2026-10-21
✗Problems found Score 69 of 100

Domain & DNS

fail

22 passed 3 warn 1 failed

Areas

iRegistration ✗Delegation !Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Nameserver names are CNAMEs
    Delegation · Nameserver names must not be aliases (RFC 2181 10.3): ns.remus.u-pem.fr -> dns1.remus.u-pem.fr.
    #9
  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only in the zone: ns.remus.u-pem.fr. ns.remus.u-pem.fr, ns1.esiee.fr, ns3.esiee.fr report NS ns.remus.u-pem.fr ns1.esiee.fr ns3.esiee.fr.
    #7
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.esiee.fr: "9.18.49-1~deb12u2-Debian"; ns3.esiee.fr: "9.18.49-1~deb12u2-Debian". Hide or replace the version string.
    #17
  • !
    Not signed
    DNSSEC · The zone is not signed with DNSSEC, so answers can be spoofed. Enable DNSSEC at your DNS provider and publish the DS record at your registrar.
    #27

Recent checks

✗

Full report

Domain & DNS report for esiee.fr ›

Mail

warn

25 passed 4 warn 0 failed

Areas

✓SPF !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
  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    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

Recent checks

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Full report

Mail report for esiee.fr ›