key.com

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-153.akam.net: "41824.4"; a1-153.akam.net: "41824.10"; a10-66.akam.net: "48878.27"; a10-66.akam.net: "48878.33"; a13-67.akam.net: "41824.4"; a13-67.akam.net: "41824.10"; a16-64.akam.net: "48878.27"; a16-64.akam.net: "48878.30"; a22-65.akam.net: "48878.31"; a22-65.akam.net: "48878.33"; a9-66.akam.net: "41824.4"; a9-66.akam.net: "41824.8". Hide or replace the version string.

SOA · negative caching TTL (minimum) 2m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 4h, retry 1h, expire 28d, negative TTL 2m.

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 5m; resolvers may use either.

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

MX · The following MX hosts could not be resolved to IPv6 addresses: mxa-002e7401.gslb.pphosted.com, mxb-002e7401.gslb.pphosted.com

DNSSEC · DNSKEY signatures expire at 2026-10-24T19:46:45Z (in 58h0m0s). 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.

BIMI · The logo is published without a Verified Mark Certificate. Gmail and Apple Mail only show BIMI logos with a VMC or CMC; Yahoo shows it without one.