mintur.gob.cu — Caribbean IPv6 Monitor

Score0/4

Overall IPv4-only

EconomyCuba

Collected2026-10-15 04:36 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: ns1.mintur.gob.cu, ns1.tur.cu, ns3.tur.cu, ns4.tur.cu.
Publish AAAA records for mail (MX): mail10.tur.cu, mail5.tur.cu, mail6.tur.cu, mail7.tur.cu, mail8.tur.cu, mail9.tur.cu, mxi1.mintur.gob.cu, mxi2.mintur.gob.cu, mxo1.mintur.gob.cu, mxo2.mintur.gob.cu.
Web measurement was inconclusive or unavailable.
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

[6] 0/0/0 [M]

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

IPv4 4/1/1 · IPv6 0/0/0 · location M

Host	IPv4	IPv6	Probes
`ns1.mintur.gob.cu` [I]	200.55.188.197	—	ipv4 200.55.188.197 ok;
`ns3.tur.cu` [O]	181.225.229.92	—	ipv4 181.225.229.92 dns_error;
`ns1.tur.cu` [O]	181.225.229.90	—	ipv4 181.225.229.90 dns_error;
`ns4.tur.cu` [O]	200.55.184.159	—	ipv4 200.55.184.159 timeout;
`ns2.mintur.gob.cu` [I]	—	—
`ns2.tur.cu` [O]	—	—

📌 Action item(s):

Publish AAAA records for name server: ns1.mintur.gob.cu, ns1.tur.cu, ns3.tur.cu, ns4.tur.cu.

Mail

IPv4-only

[10 MX] v4 smtp 10/10/5 v6 smtp 0/0/0 [M]

Meaning: Shows MX footprint and SMTP health per IP family. Operational means an SMTP banner and EHLO exchange succeeded on port 25.

IPv4 SMTP 10/10/5 · IPv6 0/0/0 · location M

Host	IPv4	IPv6	Probes
`mail10.tur.cu` [O]	200.55.184.146	—	ipv4 200.55.184.146 ok;
`mxi1.mintur.gob.cu` [I]	200.55.188.197	—	ipv4 200.55.188.197 ok;
`mxo2.mintur.gob.cu` [I]	200.55.188.196	—	ipv4 200.55.188.196 timeout;
`mxi2.mintur.gob.cu` [I]	200.55.188.198	—	ipv4 200.55.188.198 refused;
`mxo1.mintur.gob.cu` [I]	200.55.188.195	—	ipv4 200.55.188.195 timeout;
`mail7.tur.cu` [O]	200.55.180.182	—	ipv4 200.55.180.182 ok;
`mail5.tur.cu` [O]	200.55.184.145	—	ipv4 200.55.184.145 timeout;
`mail6.tur.cu` [O]	200.55.180.178	—	ipv4 200.55.180.178 ok;
`mail9.tur.cu` [O]	200.55.184.145	—	ipv4 200.55.184.145 timeout;
`mail8.tur.cu` [O]	200.55.184.147	—	ipv4 200.55.184.147 ok;

📌 Action item(s):

Publish AAAA records for mail (MX): mail10.tur.cu, mail5.tur.cu, mail6.tur.cu, mail7.tur.cu, mail8.tur.cu, mail9.tur.cu, mxi1.mintur.gob.cu, mxi2.mintur.gob.cu, mxo1.mintur.gob.cu, mxo2.mintur.gob.cu.

Web

Unknown

[0] error: Get "https://www.mintur.gob.cu/": tls: failed to verify certificate: x509: certificate signed by unknown authority

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

IPv4 0/0/0 · IPv6 0/0/0 · location -

📌 Action item(s):

Web measurement was inconclusive or unavailable.

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.mintur.gob.cu (DNS TXT). Shows organizational policy (p=) and subdomain policy (sp=) when set.

Record at _dmarc.mintur.gob.cu:

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.