Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[3] 3/3/3 [I]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 3/3/3 · IPv6 3/3/3 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
nsopt1.opt.nc [I] |
202.87.129.35 |
2404:2200:10:1001::53 |
ipv4 202.87.129.35 ok; ipv6 2404:2200:10:1001::53 ok; |
nsopt2.opt.nc [I] |
202.87.129.4 |
2404:2200:10:1000::53 |
ipv4 202.87.129.4 ok; ipv6 2404:2200:10:1000::53 ok; |
nsopt3.opt.nc [I] |
202.87.129.172 |
2404:2200:10:1002::53 |
ipv4 202.87.129.172 ok; ipv6 2404:2200:10:1002::53 ok; |
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 |
|---|
opt-nc.mail.protection.outlook.com [O] |
52.101.149.2, 52.101.149.1, 52.101.149.52, 52.101.149.0 |
2a01:111:f403:cc33::, 2a01:111:f403:cc31::2, 2a01:111:f403:cc31::, 2a01:111:f403:cc31::1 |
ipv4 52.101.149.2 ok; ipv4 52.101.149.1 ok; ipv4 52.101.149.52 ok; ipv4 52.101.149.0 ok; ipv6 2a01:111:f403:cc33:: ok; ipv6 2a01:111:f403:cc31::2 ok; ipv6 2a01:111:f403:cc31:: ok; ipv6 2a01:111:f403:cc31::1 ok; |
Web
Dual-stack
[1] 2/2/2 [I]
Meaning: Shows IPv6 web endpoint readiness for the discovered HTTPS host. Operational means family-specific HTTPS requests complete successfully.
IPv4 2/2/2 · IPv6 2/2/2 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
www.opt.nc [I] |
202.87.129.164, 202.87.129.166 |
2404:2200:10:1002:202:87:129:163, 2404:2200:10:1002:202:87:129:165 |
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, sp=none
p=reject, sp=none — published organizational policy. Strongest published policy (SPF/DKIM alignment still not measured here).
Meaning: Published DMARC policy at _dmarc.opt.nc (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.opt.nc:
v=DMARC1; p=reject; rua=mailto:620c7b6525b12@ag.dmarcly.com; ruf=mailto:620c7b6525b12@fo.dmarcly.com; sp=none;
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian