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Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-61.akam.net: "41824.5"; a1-61.akam.net: "41824.4"; a11-64.akam.net: "41824.6"; a11-64.akam.net: "41824.10"; a12-65.akam.net: "48878.31"; a12-65.akam.net: "48878.30"; a14-66.akam.net: "48878.26"; a14-66.akam.net: "48878.33"; a22-66.akam.net: "48878.29"; a3-64.akam.net: "41824.4"; a3-64.akam.net: "41824.5". Hide or replace the version string.

SOA · refresh 10m is outside 20m–1d. Current values: refresh 10m, retry 5m, expire 7d, negative TTL 10m.

Records · These records have a TTL below 5m, causing extra queries and slower lookups: A (20s). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 10m; resolvers may use either.

DNSSEC · DNSKEY signatures expire at 2026-10-25T05:43:43Z (in 66h0m0s). Check that re-signing works.

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.