Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[2] 2/1/1 [O]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 2/2/2 · IPv6 2/1/1 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
ns2.fm [O] |
119.252.116.136 |
2407:4800:0:2::6 |
ipv4 119.252.116.136 ok; ipv6 2407:4800:0:2::6 refused; |
ns1.fm [O] |
119.252.116.135 |
2407:4800:0:2::5 |
ipv4 119.252.116.135 ok; ipv6 2407:4800:0:2::5 ok; |
📌 Action item(s):
- IPv6 2407:4800:0:2::6 on name server ns2.fm failed (refused) — check firewall, routing, and service.
Mail
Dual-stack
[1 MX] v4 smtp 4/4/4 v6 smtp 4/4/4 [O]
Meaning: Shows MX footprint and SMTP health per IP family. Operational means an SMTP banner and EHLO exchange succeeded on port 25.
IPv4 SMTP 4/4/4 · IPv6 4/4/4 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
fsmtc-fm.mail.protection.outlook.com [O] |
52.101.124.117, 52.101.137.0, 52.101.137.2, 52.101.157.80 |
2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc09::1, 2a01:111:f403:cc1f::4 |
ipv4 52.101.124.117 ok; ipv4 52.101.137.0 ok; ipv4 52.101.137.2 ok; ipv4 52.101.157.80 ok; ipv6 2a01:111:f403:cc09:: ok; ipv6 2a01:111:f403:cc1a::8 ok; ipv6 2a01:111:f403:cc09::1 ok; ipv6 2a01:111:f403:cc1f::4 ok; |
Web
Dual-stack
[1] 1/1/1 [I]
Meaning: Shows IPv6 web endpoint readiness for the discovered HTTPS host. Operational means family-specific HTTPS requests complete successfully.
IPv4 1/1/1 · IPv6 1/1/1 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
fsmtc.fm [I] |
119.252.116.162 |
2407:4800:0:2::b |
ipv4 ok; ipv6 ok; |
DNSSEC
Unsigned
U/-/-
Meaning: Shows whether DNSKEY data is observed at the apex (signed), absent (unsigned), or unavailable due to lookup error.
Apex DNSKEY presence only — not full chain validation.
Analyze on DNSViz
📌 Action item(s):
- Enable DNSSEC signing and publish a DNSKEY at the apex. Use DNSViz to validate the full chain.
DMARC
p=reject
p=reject — published organizational policy. Strongest published policy (SPF/DKIM alignment still not measured here).
Meaning: Published DMARC policy at _dmarc.fsmtc.fm (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.fsmtc.fm:
v=DMARC1; p=reject; rua=mailto:dmarc@fsmtc.fm; ruf=mailto:dmarc@fsmtc.fm; fo=1;
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian