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-853.awsdns-42.net [O] |
205.251.195.85 |
2600:9000:5303:5500::1 |
ipv4 205.251.195.85 ok; ipv6 2600:9000:5303:5500::1 ok; |
ns-2041.awsdns-63.co.uk [O] |
205.251.199.249 |
2600:9000:5307:f900::1 |
ipv4 205.251.199.249 ok; ipv6 2600:9000:5307:f900::1 ok; |
ns-1373.awsdns-43.org [O] |
205.251.197.93 |
2600:9000:5305:5d00::1 |
ipv4 205.251.197.93 ok; ipv6 2600:9000:5305:5d00::1 ok; |
ns-368.awsdns-46.com [O] |
205.251.193.112 |
2600:9000:5301:7000::1 |
ipv4 205.251.193.112 ok; ipv6 2600:9000:5301:7000::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 |
|---|
discoverdominica-com.mail.protection.outlook.com [O] |
52.101.9.21, 52.101.10.12, 52.101.60.71, 52.101.40.56 |
2a01:111:f403:f802::2, 2a01:111:f403:f801::, 2a01:111:f403:c922::7, 2a01:111:f403:f904::d |
ipv4 52.101.9.21 ok; ipv4 52.101.10.12 ok; ipv4 52.101.60.71 ok; ipv4 52.101.40.56 ok; ipv6 2a01:111:f403:f802::2 ok; ipv6 2a01:111:f403:f801:: ok; ipv6 2a01:111:f403:c922::7 ok; ipv6 2a01:111:f403:f904::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 1/1/1 · IPv6 0/0/0 · location I
| Host | IPv4 | IPv6 | Probes |
|---|
discoverdominica.com [I] |
3.235.212.143 |
— |
ipv4 ok; |
📌 Action item(s):
- Publish AAAA records for web host: discoverdominica.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
No record
No record — no TXT at _dmarc.discoverdominica.com.
Meaning: Published DMARC policy at _dmarc.discoverdominica.com (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Publish a DMARC TXT at _dmarc.discoverdominica.com (often start with p=none, then tighten).
Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.
Check on dmarcian
📌 Action item(s):
- Publish a _dmarc TXT record (start with p=none, then tighten). Check policy on dmarcian.