ub.edu.bs — Caribbean IPv6 Monitor

Score1/4

Overall IPv4-only

Collected2026-10-14 12:33 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: dns2.ub.edu.bs.
Publish AAAA records for web host: www.ub.edu.bs.
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

[1] 0/0/0 [I]

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 I

Host	IPv4	IPv6	Probes
`dns2.ub.edu.bs` [I]	108.60.228.76, 65.75.64.76	—	ipv4 108.60.228.76 ok; ipv4 65.75.64.76 ok;

📌 Action item(s):

Publish AAAA records for name server: dns2.ub.edu.bs.

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
`ub-edu-bs.mail.protection.outlook.com` [O]	52.101.60.2, 52.101.60.185, 52.101.41.122, 52.101.9.11	2a01:111:f403:c946::2, 2a01:111:f403:c946::1, 2a01:111:f403:f805::2, 2a01:111:f403:f906::	ipv4 52.101.60.2 ok; ipv4 52.101.60.185 ok; ipv4 52.101.41.122 ok; ipv4 52.101.9.11 ok; ipv6 2a01:111:f403:c946::2 ok; ipv6 2a01:111:f403:c946::1 ok; ipv6 2a01:111:f403:f805::2 ok; ipv6 2a01:111:f403:f906:: 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 2/2/2 · IPv6 0/0/0 · location I

Host	IPv4	IPv6	Probes
`www.ub.edu.bs` [I]	108.60.228.89, 65.75.64.75	—	ipv4 ok;

📌 Action item(s):

Publish AAAA records for web host: www.ub.edu.bs.

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.ub.edu.bs (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.

Record at _dmarc.ub.edu.bs:

v=DMARC1; p=none; pct=100; rua=mailto:ubadm@ub.edu.bs; ruf=mailto:ubadm@ub.edu.bs;

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.