usaa.com

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-88.akam.net: "41824.10"; a1-88.akam.net: "41824.9"; a11-65.akam.net: "41824.8"; a11-65.akam.net: "41824.6"; a13-66.akam.net: "41824.5"; a13-66.akam.net: "41824.8"; a18-67.akam.net: "48878.29"; a28-64.akam.net: "48878.32"; a28-64.akam.net: "48878.31"; a4-65.akam.net: "48878.33"; a4-65.akam.net: "48878.32". Hide or replace the version string.

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 15m; resolvers may use either.

MX · The following MX hosts could not be resolved to IPv6 addresses: mxa-0001ef04.gslb.pphosted.com, mxb-0001ef04.gslb.pphosted.com

DNSSEC · DNSKEY signatures expire at 2026-10-24T15:05:01Z (in 52h0m0s). Check that re-signing works.

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: s2 (1024 bits). Rotate to a 2048-bit key.

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.