bruna.nl

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-101.akam.net: "41824.10"; a1-101.akam.net: "41824.11"; a10-65.akam.net: "48878.33"; a10-65.akam.net: "48878.26"; a13-64.akam.net: "41824.9"; a13-64.akam.net: "41824.7"; a14-64.akam.net: "48878.32"; a14-64.akam.net: "48878.26"; a4-66.akam.net: "48878.27"; a7-65.akam.net: "41824.9"; a7-65.akam.net: "41824.6". Hide or replace the version string.

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. The NS TTL at the parent is 1h and in the zone 1d; resolvers may use either.

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

DNSSEC · DNSKEY signatures expire at 2026-10-24T00:51:48Z (in 52h0m0s). 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.