SurfaceMap › e › ecole-navale.fr

ecole-navale.fr

Checked 2026-10-22 02:40 UTC · first added 2026-10-21
✗Problems found Score 36 of 100

Domain & DNS

fail

18 passed 3 warn 4 failed

Areas

iRegistration ✗Delegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Nameserver names are CNAMEs
    Delegation · Nameserver names must not be aliases (RFC 2181 10.3): cassis-gw.univ-brest.fr -> rslv0.univ-brest.fr.
    #9
  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: cassis-gw.univ-brest.fr (195.83.247.29): read udp 46.225.38.91:52951->195.83.247.29:53: i/o timeout.
    #14
  • ✗
    Lame delegation
    Nameservers · These nameservers don't answer authoritatively for the zone, so resolvers ignore them: ns2.univ-brest.fr (195.83.247.17): SERVFAIL, authoritative=false.
    #15
  • ✗
    No DNS over TCP
    Nameservers · DNS over TCP is required (RFC 7766); without it, large answers such as DNSSEC responses fail. Not answering over TCP: ns2.univ-brest.fr (195.83.247.17): ; poseidon.ecole-navale.fr (193.52.4.2): dial tcp 193.52.4.2:53: i/o timeout.
    #19
  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: cassis-gw.univ-brest.fr; only in the zone: ns2.univ-brest.fr. poseidon.ecole-navale.fr report NS ns2.univ-brest.fr poseidon.ecole-navale.fr.
    #7
  • !
    No IPv6
    Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13
  • !
    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 ecole-navale.fr ›

Mail

warn

24 passed 5 warn 0 failed

Areas

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

Problems

  • !
    Not enabled
    DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.
    #8
  • !
    Hosts without IPv6
    MX · The following MX hosts could not be resolved to IPv6 addresses: mx1.relay.renater.fr, mx2.relay.renater.fr, mxa.relay.renater.fr, mxb.relay.renater.fr, mxc.relay.renater.fr, mxd.relay.renater.fr
    #11
  • !
    More than 5 MX records
    MX · Found 6 MX records, which is more than the recommended maximum of 5. Too many MX records may indicate a misconfiguration.
    #13
  • !
    1024-bit DKIM key
    DKIM · 1024-bit RSA keys are the minimum and are considered weak today: default (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

!

Full report

Mail report for ecole-navale.fr ›