mrporter.com

Delegation · The nameservers at the parent and in the zone should be the same. Only at the parent: ns1-2.akam.net, ns1-65.akam.net, ns4-65.akam.net, ns4-66.akam.net, ns5-65.akam.net, ns7-64.akam.net, ns7-65.akam.net; only in the zone: ns1-183.akam.net, ns4-64.akam.net, ns7-67.akam.net. ns1-183.akam.net, ns1-2.akam.net, ns1-65.akam.net, ns4-64.akam.net, ns4-65.akam.net, ns4-66.akam.net, ns5-65.akam.net, ns5-67.akam.net, ns7-64.akam.net, ns7-65.akam.net, ns7-67.akam.net report NS ns1-183.akam.net ns4-64.akam.net ns5-67.akam.net ns7-67.akam.net.

Nameservers · These nameservers report their software version via version.bind/version.server, which helps attackers find known vulnerabilities: ns1-183.akam.net: "41824.4"; ns1-183.akam.net: "41824.9"; ns1-2.akam.net: "41824.4"; ns1-2.akam.net: "41824.5"; ns1-65.akam.net: "41824.5"; ns4-64.akam.net: "41824.5"; ns4-65.akam.net: "41824.4"; ns4-66.akam.net: "41824.9"; ns5-65.akam.net: "41824.4"; ns5-67.akam.net: "41824.4"; ns7-64.akam.net: "41824.10"; ns7-65.akam.net: "41824.8"; ns7-67.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). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 2h; resolvers may use either.

MX · The following MX hosts could not be resolved to IPv6 addresses: eu-smtp-inbound-1.mimecast.com, eu-smtp-inbound-2.mimecast.com

DNSSEC · DNSKEY signatures expire at 2026-10-24T13:53:52Z (in 52h0m0s). Check that re-signing works.

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: k1 (1024 bits), 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.