nevisisland.com — Caribbean IPv6 Monitor

Score3/4

Overall Dual-stack

Collected2026-10-10 20:32 UTC

Visit website View Saint Kitts and Nevis

Measurement estimates from a single vantage point — not a compliance certification. Guidance below is for operators, not an SLA.

Priority next steps

Enable DNSSEC signing and publish a DNSKEY at the apex. Use DNSViz to validate the full chain.
DMARC is monitoring-only (p=none). Move toward quarantine, then reject. Review on dmarcian.

Checks

DNS

Dual-stack

[2] 2/2/2 [O]

Meaning: Shows how many authoritative name servers exist, and how many IPv6 endpoints are configured, responsive, and operational.

IPv4 2/2/2 · IPv6 2/2/2 · location O

Host	IPv4	IPv6	Probes
`ns20.domaincontrol.com` [O]	173.201.77.10	2603:5:22d0::a	ipv4 173.201.77.10 ok; ipv6 2603:5:22d0::a ok;
`ns19.domaincontrol.com` [O]	97.74.109.10	2603:5:21d0::a	ipv4 97.74.109.10 ok; ipv6 2603:5:21d0::a 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
`alt4.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;
`aspmx.l.google.com` [O]	192.179.26.26	2607:f8b0:400e:c05::1b	ipv4 192.179.26.26 ok; ipv6 2607:f8b0:400e:c05::1b ok;
`alt1.aspmx.l.google.com` [O]	74.125.137.26	2607:f8b0:4023:c03::1b	ipv4 74.125.137.26 ok; ipv6 2607:f8b0:4023:c03::1b ok;
`alt2.aspmx.l.google.com` [O]	192.178.231.27	2607:f8b0:4023:200d::1b	ipv4 192.178.231.27 ok; ipv6 2607:f8b0:4023:200d::1b ok;
`alt3.aspmx.l.google.com` [O]	172.217.216.27	2607:f8b0:4023:2803::1a	ipv4 172.217.216.27 ok; ipv6 2607:f8b0:4023:2803::1a ok;

Web

Dual-stack

[1] 5/5/5 [I]

Meaning: Shows IPv6 web endpoint readiness for the discovered HTTPS host. Operational means family-specific HTTPS requests complete successfully.

IPv4 5/5/5 · IPv6 5/5/5 · location I

Host	IPv4	IPv6	Probes
`www.nevisisland.com` [I]	104.18.161.83, 104.18.163.83, 104.18.162.83, 104.18.164.83, 104.18.160.83	2606:4700::6812:a153, 2606:4700::6812:a053, 2606:4700::6812:a353, 2606:4700::6812:a253, 2606:4700::6812:a453	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=none

p=none — published organizational policy. Monitoring only (receivers should not reject mail); tighten toward quarantine, then reject when ready. Not the same as missing DMARC.

Meaning: Published DMARC policy at _dmarc.nevisisland.com (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.

Record at _dmarc.nevisisland.com:

v=DMARC1; p=none;

Policy publication only — SPF/DKIM not measured. Not part of the 0–4 row score.

Check on dmarcian

📌 Action item(s):

DMARC is monitoring-only (p=none). Move toward quarantine, then reject. Review on dmarcian.