teslamotors.com

Delegation · The nameservers at the parent and in the zone should be the same. Only in the zone: edns69.ultradns.biz, edns69.ultradns.com, edns69.ultradns.net, edns69.ultradns.org. a1-12.akam.net, a10-67.akam.net, a12-64.akam.net, a28-65.akam.net, a7-66.akam.net, a9-67.akam.net, edns69.ultradns.biz, edns69.ultradns.com, edns69.ultradns.net, edns69.ultradns.org report NS a1-12.akam.net a10-67.akam.net a12-64.akam.net a28-65.akam.net a7-66.akam.net a9-67.akam.net edns69.ultradns.biz edns69.ultradns.com edns69.ultradns.net edns69.ultradns.org.

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: a1-12.akam.net: "41824.10"; a1-12.akam.net: "41824.9"; a10-67.akam.net: "48878.30"; a12-64.akam.net: "48878.31"; a12-64.akam.net: "48878.27"; a28-65.akam.net: "48878.27"; a28-65.akam.net: "48878.30"; a7-66.akam.net: "41824.8"; a7-66.akam.net: "41824.7"; a9-67.akam.net: "41824.7"; a9-67.akam.net: "41824.6". Hide or replace the version string.

SOA · refresh 5m is outside 20m–1d; retry 50m should be shorter than refresh 5m; expire 1d is shorter than 7d; secondaries stop answering too soon when the primary is down. Current values: refresh 5m, retry 50m, expire 1d, negative TTL 5m.

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: NS (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1m; resolvers may use either.

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: teslamotors-com.mail.protection.outlook.com

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

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: default (1024 bits), selector1 (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.