wsls.com

Delegation · The addresses at the parent (glue) differ from the addresses in the zone: ns1.grahamdigital.com (glue 208.94.148.4, zone 208.94.148.4, 2600:1800:10::1); ns2.grahamdigital.com (glue 208.80.124.4, zone 208.80.124.4, 2600:1801:11::1); ns3.grahamdigital.com (glue 208.80.126.4, zone 208.80.126.4, 2600:1802:12::1); ns4.grahamdigital.com (glue 208.80.125.4, zone 208.80.125.4, 2600:1801:13::1); ns5.grahamdigital.com (glue 208.80.127.4, zone 208.80.127.4, 2600:1802:14::1); ns6.grahamdigital.com (glue 208.94.149.4, zone 208.94.149.4, 2600:1800:15::1). Update the glue at your registrar.

SOA · negative caching TTL (minimum) 3m is outside 5m–1d (RFC 2308 recommends 1–3 hours). Current values: refresh 12h, retry 1h, expire 14d, negative TTL 3m.

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: MX (1m). Low TTLs are useful just before a planned change. The NS TTL at the parent is 2d and in the zone 1d; 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: mxb-001ef401.gslb.pphosted.com, mxa-001ef401.gslb.pphosted.com

DKIM · 1024-bit RSA keys are the minimum and are considered weak today: 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.