gpd.guam.gov — Pacific Islands IPv6 Monitor

Score1/4

Overall IPv4-only

EconomyGuam

Collected2026-10-14 16:33 UTC

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

Priority next steps

DNS measurement was inconclusive or unavailable.
Publish AAAA records for web host: gpd.guam.gov.
Enable DNSSEC signing and publish a DNSKEY at the apex. Use DNSViz to validate the full chain.
Tighten DMARC toward p=reject when ready. Review on dmarcian.

Unknown

[0] -/-/- [-]

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

IPv4 0/0/0 · IPv6 0/0/0 · location -

📌 Action item(s):

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
`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;
`alt4.aspmx.l.google.com` [O]	172.253.135.26	2607:f8b0:4023:1015::1a	ipv4 172.253.135.26 ok; ipv6 2607:f8b0:4023:1015::1a ok;
`aspmx.l.google.com` [O]	74.125.199.26	2607:f8b0:400e:c08::1a	ipv4 74.125.199.26 ok; ipv6 2607:f8b0:400e:c08::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;
`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;

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
`gpd.guam.gov` [I]	54.202.86.196	—	ipv4 ok;

📌 Action item(s):

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.

📌 Action item(s):

Enable DNSSEC signing and publish a DNSKEY at the apex. Use DNSViz to validate the full chain.

p=quarantine

p=quarantine — published organizational policy. Ask receivers to quarantine failing mail; reject is stronger.

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

Record at _dmarc.gpd.guam.gov:

v=DMARC1; p=quarantine; pct=100; rua=mailto:dmarc-reports@gpd.guam.gov

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

📌 Action item(s):