SurfaceMap › p › polytech-lille.fr

polytech-lille.fr

Checked 2026-10-22 04:51 UTC · first added 2026-10-21
✗Problems found Score 40 of 100

Domain & DNS

fail

20 passed 5 warn 2 failed

Areas

iRegistration !Delegation ✗Nameservers ✓SOA !DNSSEC iRecords

Problems

  • ✗
    Nameservers not responding
    Nameservers · These addresses did not answer, so resolvers waste time on timeouts: etch.polytech-lille.org (193.48.57.7): read udp 46.225.38.91:33323->193.48.57.7:53: i/o timeout; slink.polytech-lille.org (193.48.57.3): read udp 46.225.38.91:52067->193.48.57.3:53: 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: buzz.polytech-lille.org (193.48.57.33): dial tcp 193.48.57.33:53: 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: etch.polytech-lille.org, slink.polytech-lille.org. beuvry.escaut.net, buzz.polytech-lille.org report NS beuvry.escaut.net buzz.polytech-lille.org etch.polytech-lille.org slink.polytech-lille.org.
    #7
  • !
    Nameservers in one network
    Delegation · all IPv4 addresses are in 193.48.57.0/24. A single network failure takes all nameservers down; RFC 2182 recommends topologically separate networks (anycast setups are an exception).
    #10
  • !
    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: beuvry.escaut.net: "9.18.49-1~deb12u2-Debian"; buzz.polytech-lille.org: "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 polytech-lille.fr ›

Mail

fail

15 passed 5 warn 1 failed

Areas

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

Problems

  • ✗
    No DMARC record
    DMARC · No DMARC record was found for this domain. DMARC is essential for preventing email spoofing. Add a DMARC record with p=reject or at least p=quarantine.
    #5
  • !
    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: woody.polytech-lille.org
    #11
  • !
    Single MX host, no backup
    MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.
    #12
  • !
    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 polytech-lille.fr ›