Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[2] 6/6/6 [O]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 6/6/6 · IPv6 6/6/6 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
mckinley.ns.cloudflare.com [O] |
108.162.194.73, 172.64.34.73, 162.159.38.73 |
2a06:98c1:50::ac40:2249, 2803:f800:50::6ca2:c249, 2606:4700:50::a29f:2649 |
ipv4 108.162.194.73 ok; ipv4 172.64.34.73 ok; ipv4 162.159.38.73 ok; ipv6 2a06:98c1:50::ac40:2249 ok; ipv6 2803:f800:50::6ca2:c249 ok; ipv6 2606:4700:50::a29f:2649 ok; |
clint.ns.cloudflare.com [O] |
172.64.33.90, 173.245.59.90, 108.162.193.90 |
2a06:98c1:50::ac40:215a, 2803:f800:50::6ca2:c15a, 2606:4700:58::adf5:3b5a |
ipv4 172.64.33.90 ok; ipv4 173.245.59.90 ok; ipv4 108.162.193.90 ok; ipv6 2a06:98c1:50::ac40:215a ok; ipv6 2803:f800:50::6ca2:c15a ok; ipv6 2606:4700:58::adf5:3b5a ok; |
Mail
Dual-stack
[5 MX] v4 smtp 5/5/5 v6 smtp 5/5/5 [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 5/5/5 · IPv6 5/5/5 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
aspmx.l.google.com [O] |
74.125.199.26 |
2607:f8b0:400e:c01::1b |
ipv4 74.125.199.26 ok; ipv6 2607:f8b0:400e:c01::1b ok; |
alt3.aspmx.l.google.com [O] |
172.253.145.27 |
2607:f8b0:4023:3003::1a |
ipv4 172.253.145.27 ok; ipv6 2607:f8b0:4023:3003::1a ok; |
alt4.aspmx.l.google.com [O] |
172.253.135.27 |
2607:f8b0:4023:1015::1b |
ipv4 172.253.135.27 ok; ipv6 2607:f8b0:4023:1015::1b ok; |
alt1.aspmx.l.google.com [O] |
192.178.231.27 |
2607:f8b0:4023:200d::1a |
ipv4 192.178.231.27 ok; ipv6 2607:f8b0:4023:200d::1a ok; |
alt2.aspmx.l.google.com [O] |
172.217.216.26 |
2607:f8b0:4023:2803::1b |
ipv4 172.217.216.26 ok; ipv6 2607:f8b0:4023:2803::1b 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.st-barths.com [I] |
104.21.24.27, 172.67.216.125 |
2606:4700:3036::ac43:d87d, 2606:4700:3033::6815:181b |
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=quarantine
p=quarantine — published organizational policy. Ask receivers to quarantine failing mail; reject is stronger.
Meaning: Published DMARC policy at _dmarc.st-barths.com (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.st-barths.com:
v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc@st-barths.com
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian
📌 Action item(s):
- Tighten DMARC toward p=reject when ready. Review on dmarcian.