Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.
DNS
Dual-stack
[4] 4/4/4 [O]
Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.
IPv4 4/4/4 · IPv6 4/4/4 · location O
| Host | IPv4 | IPv6 | Probes |
|---|
ns-771.awsdns-32.net [O] |
205.251.195.3 |
2600:9000:5303:300::1 |
ipv4 205.251.195.3 ok; ipv6 2600:9000:5303:300::1 ok; |
ns-1726.awsdns-23.co.uk [O] |
205.251.198.190 |
2600:9000:5306:be00::1 |
ipv4 205.251.198.190 ok; ipv6 2600:9000:5306:be00::1 ok; |
ns-237.awsdns-29.com [O] |
205.251.192.237 |
2600:9000:5300:ed00::1 |
ipv4 205.251.192.237 ok; ipv6 2600:9000:5300:ed00::1 ok; |
ns-1273.awsdns-31.org [O] |
205.251.196.249 |
2600:9000:5304:f900::1 |
ipv4 205.251.196.249 ok; ipv6 2600:9000:5304:f900::1 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 |
|---|
visitcaymanislands-com.mail.protection.outlook.com [O] |
52.101.202.144, 52.101.50.10, 52.101.42.81, 52.101.194.17 |
2a01:111:f403:f908::3, 2a01:111:f403:c946::18, 2a01:111:f403:f805::3, 2a01:111:f403:f909::d |
ipv4 52.101.202.144 ok; ipv4 52.101.50.10 ok; ipv4 52.101.42.81 ok; ipv4 52.101.194.17 ok; ipv6 2a01:111:f403:f908::3 ok; ipv6 2a01:111:f403:c946::18 ok; ipv6 2a01:111:f403:f805::3 ok; ipv6 2a01:111:f403:f909::d ok; |
Web
IPv4-only
[1] 0/0/0 [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 0/0/0 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
visitcaymanislands.com [I] |
98.95.233.115, 54.205.14.215 |
— |
ipv4 ok; |
📌 Action item(s):
- Publish AAAA records for web host: visitcaymanislands.com.
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.visitcaymanislands.com (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.visitcaymanislands.com:
v=DMARC1; p=reject; rua=mailto:dmarc@visitcaymanislands.com
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian