ac-guyane.fr — Caribbean IPv6 Monitor

Score1/4

Overall IPv4-only

Collected2026-10-11 00:33 UTC

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

Priority next steps

Publish AAAA records for name server: dnsext.ac-guyane.fr, ns.ac-creteil.fr.
Publish AAAA records for mail (MX): msg-a85.education.gouv.fr, msg-b85.education.gouv.fr.
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

IPv4-only

[2] 0/0/0 [M]

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

IPv4 2/2/2 · IPv6 0/0/0 · location M

Host	IPv4	IPv6	Probes
`ns.ac-creteil.fr` [O]	195.98.248.124	—	ipv4 195.98.248.124 ok;
`dnsext.ac-guyane.fr` [I]	195.98.226.3	—	ipv4 195.98.226.3 ok;

📌 Action item(s):

Publish AAAA records for name server: dnsext.ac-guyane.fr, ns.ac-creteil.fr.

Mail

IPv4-only

[2 MX] v4 smtp 2/2/1 v6 smtp 0/0/0 [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 2/2/1 · IPv6 0/0/0 · location O

Host	IPv4	IPv6	Probes
`msg-a85.education.gouv.fr` [O]	194.254.206.85	—	ipv4 194.254.206.85 no_banner;
`msg-b85.education.gouv.fr` [O]	193.54.151.85	—	ipv4 193.54.151.85 ok;

📌 Action item(s):

Publish AAAA records for mail (MX): msg-a85.education.gouv.fr, msg-b85.education.gouv.fr.

Web

Dual-stack

[1] 4/4/4 [I]

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

IPv4 4/4/4 · IPv6 4/4/4 · location I

Host	IPv4	IPv6	Probes
`www.ac-guyane.fr` [I]	141.101.90.107, 141.101.90.106, 141.101.90.105, 141.101.90.104	2a06:98c1:3200::90:81, 2a06:98c1:3200::90:80, 2a06:98c1:3200::90:83, 2a06:98c1:3200::90:82	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.ac-guyane.fr (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.

Record at _dmarc.ac-guyane.fr:

v=DMARC1; p=none; rua=mailto:notifs.dmarc@ac-guyane.fr;

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.