SurfaceMap › c › colmar.fr

colmar.fr

Checked 2026-10-22 02:23 UTC · first added 2026-10-21
✗Problems found Score 69 of 100

Domain & DNS

fail

18 passed 4 warn 1 failed

Areas

iRegistration !Delegation ✗Nameservers iSOA !DNSSEC !Records

Problems

  • ✗
    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: dns.illicoweb.com (51.75.29.137): dial tcp 51.75.29.137:53: i/o timeout; dns2.illicoweb.com (141.95.86.46): dial tcp 141.95.86.46:53: i/o timeout.
    #19
  • !
    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: dns.illicoweb.com: "PowerDNS Authoritative Server 4.8.3"; dns2.illicoweb.com: "PowerDNS Authoritative Server 4.8.3". 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
  • !
    Very low TTLs
    Records · These records have a TTL below 5m, causing extra queries and slower lookups: NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 1h and in the zone 1m; resolvers may use either.
    #32

Recent checks

✗

Full report

Domain & DNS report for colmar.fr ›

Mail

warn

26 passed 3 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
  • !
    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 colmar.fr ›