metro.fr

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-191.akam.net: "41824.7"; a1-191.akam.net: "41824.5"; a11-64.akam.net: "41824.11"; a11-64.akam.net: "41824.5"; a13-66.akam.net: "41824.8"; a13-66.akam.net: "41824.4"; a16-65.akam.net: "48878.32"; a16-65.akam.net: "48878.26"; a28-64.akam.net: "48878.32"; a28-64.akam.net: "48878.31"; a8-64.akam.net: "48878.31"; a8-64.akam.net: "48878.30". Hide or replace the version string.

SOA · refresh 10m is outside 20m–1d. Current values: refresh 10m, retry 5m, 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.

Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (20s), AAAA (20s). Low TTLs are useful just before a planned change.

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

MX · The following MX hosts could not be resolved to IPv6 addresses: mx1.hc611-36.eu.iphmx.com, mx2.hc611-36.eu.iphmx.com

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.