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 |
|---|
zariyah.ns.cloudflare.com [O] |
172.64.34.72, 162.159.38.72, 108.162.194.72 |
2a06:98c1:50::ac40:2248, 2803:f800:50::6ca2:c248, 2606:4700:50::a29f:2648 |
ipv4 172.64.34.72 ok; ipv4 162.159.38.72 ok; ipv4 108.162.194.72 ok; ipv6 2a06:98c1:50::ac40:2248 ok; ipv6 2803:f800:50::6ca2:c248 ok; ipv6 2606:4700:50::a29f:2648 ok; |
finley.ns.cloudflare.com [O] |
162.159.44.58, 108.162.195.58, 172.64.35.58 |
2a06:98c1:50::ac40:233a, 2803:f800:50::6ca2:c33a, 2606:4700:58::a29f:2c3a |
ipv4 162.159.44.58 ok; ipv4 108.162.195.58 ok; ipv4 172.64.35.58 ok; ipv6 2a06:98c1:50::ac40:233a ok; ipv6 2803:f800:50::6ca2:c33a ok; ipv6 2606:4700:58::a29f:2c3a 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] |
74.125.20.26 |
2607:f8b0:400e:c08::1a |
ipv4 74.125.20.26 ok; ipv6 2607:f8b0:400e:c08::1a ok; |
aspmx2.googlemail.com [O] |
192.178.231.27 |
2607:f8b0:4023:200d::1a |
ipv4 192.178.231.27 ok; ipv6 2607:f8b0:4023:200d::1a ok; |
aspmx3.googlemail.com [O] |
172.217.216.27 |
2607:f8b0:4023:2803::1b |
ipv4 172.217.216.27 ok; ipv6 2607:f8b0:4023:2803::1b 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; |
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; |
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.visitguam.com [I] |
23.212.62.211, 23.212.62.208 |
2600:1406:5600:a::17d4:3ee9, 2600:1406:5600:a::17d4:3ef1 |
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.visitguam.com (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.
Record at _dmarc.visitguam.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.