canon.fr

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-206.akam.net: "41824.7"; a1-206.akam.net: "41824.11"; a11-65.akam.net: "41824.10"; a11-65.akam.net: "41824.5"; a14-66.akam.net: "48878.26"; a14-66.akam.net: "48878.27"; a18-67.akam.net: "48878.29"; a18-67.akam.net: "48878.31"; a26-64.akam.net: "48878.31"; a26-64.akam.net: "48878.26"; a9-65.akam.net: "41824.8"; a9-65.akam.net: "41824.6". Hide or replace the version string.

SOA · retry 1h should be shorter than refresh 1h. Current values: refresh 1h, retry 1h, expire 28d, negative TTL 15m.

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.

DKIM · The _domainkey name exists but no DKIM key was found under the common selectors. Selectors are provider-specific; check yours with -selector.

DNSSEC · DNSSEC is not enabled for this domain. Consider enabling DNSSEC to protect against DNS spoofing attacks.

MX · Only one MX record found. For better email reliability, consider adding at least one backup MX server.

DMARC · DMARC subdomain policy is sp=none, so spoofed mail from subdomains is not blocked. Consider sp=quarantine or sp=reject.

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.