SurfaceMap › p › paris-sorbonne.fr

paris-sorbonne.fr

Checked 2026-10-22 04:43 UTC · first added 2026-10-21
!Check could not complete

Domain & DNS

error

21 passed 3 warn 2 failed 1 errors

lookups failed for dnssec; results are incomplete

Areas

iRegistration !Delegation ✗Nameservers ✓SOA iDNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: ns0.paris-sorbonne.fr (195.220.216.41): read udp 46.225.38.91:55175->195.220.216.41:53: i/o timeout; ns2.paris-sorbonne.fr (195.220.216.27): read udp 46.225.38.91:45680->195.220.216.27:53: read: no route to host; ns3.paris-sorbonne.fr (195.220.209.19): read udp 46.225.38.91:35536->195.220.209.19:53: i/o timeout.
    #14
  • ✗
    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: ns0.sorbonne-universite.fr (134.157.23.111): dial tcp 134.157.23.111:53: i/o timeout.
    #19
  • !
    NS sets differ
    Delegation · The nameservers at the parent and in the zone should be the same. Only in the zone: ns0.paris-sorbonne.fr, ns0.sorbonne-universite.fr, ns1.sorbonne-universite.fr. ns0.sorbonne-universite.fr, ns1.paris-sorbonne.fr, ns1.sorbonne-universite.fr report NS ns0.paris-sorbonne.fr ns0.sorbonne-universite.fr ns1.paris-sorbonne.fr ns1.sorbonne-universite.fr ns2.paris-sorbonne.fr ns3.paris-sorbonne.fr.
    #7
  • !
    No IPv6
    Delegation · None of the nameservers has an IPv6 address, so IPv6-only resolvers can't reach them.
    #13
  • !
    Software version disclosed
    Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1.paris-sorbonne.fr: "9.16.48-Debian". Hide or replace the version string.
    #17

Recent checks

!

Full report

Domain & DNS report for paris-sorbonne.fr ›

Mail

fail

18 passed 6 warn 1 failed

Areas

!SPF ✗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
  • !
    Ends with ?all (neutral)
    SPF · SPF record uses ?all (neutral), which gives no protection against unauthorized senders. Use -all or ~all instead.
    #3
  • !
    No key under common selectors
    DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.
    #7
  • !
    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
    #11
  • !
    Unsupported report address
    DMARC · Receivers only send reports to mailto: addresses: dmarc@listes.sorbonne-universite.fr.
    #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

✗

Full report

Mail report for paris-sorbonne.fr ›