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universite-lyon.fr

Checked 2026-10-22 05:37 UTC · first added 2026-10-21
✗Problems found Score 75 of 100

Domain & DNS

warn

28 passed 2 warn 0 failed

Areas

iRegistration !Delegation ✓Nameservers ✓SOA !DNSSEC ✓Records

Problems

  • !
    No IPv6
    Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13
  • !
    Signatures expire soon
    DNSSEC · The earliest signature expires at 2026-10-28 21:29 UTC (in 160h0m0s). Check that automatic re-signing works.
    #30

Recent checks

!

Full report

Domain & DNS report for universite-lyon.fr ›

Mail

fail

23 passed 3 warn 1 failed

Areas

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

Problems

  • ✗
    Policy: none (monitoring only)
    DMARC · DMARC policy is set to 'none', which only monitors but doesn't protect against spoofing. Consider upgrading to 'quarantine' or ideally 'reject'.
    #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 160h0m0s
    DNSSEC · DNSKEY signatures expire at 2026-10-28T21:29:13Z (in 160h0m0s). Check that re-signing works.
    #21
  • !
    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

✗

Full report

Mail report for universite-lyon.fr ›