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Total

DNS

Email

Security

Network

Availability

Domaingranma.cu

IPv41

IPv60

MX records3

StatusActive

Domain technical report

granma.cu

Generated: 2026-08-11T01:34:26-05:00 · Cached result

JSON CSV PDF Visit site

IPv41

IPv60

MX3

NS2

DiagnosticsMain findings and recommendations

✓

IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓

Name server redundancy20 / 20 pts · Dns

2 NS record(s); 2 or more required.

✓

SOA record10 / 10 pts · Dns

Authoritative zone record.

DNSSEC chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓

DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓

MX records20 / 20 pts · Mail

3 MX record(s).

✓

SPF25 / 25 pts · Mail

SPF policy published.

DMARC0 / 25 pts · Mail

DMARC policy not found.

✓

DKIM20 / 20 pts · Mail

A DKIM selector was verified.

MTA-STS0 / 5 pts · Mail

Mail transport policy.

TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓

Valid TLS certificate55 / 55 pts · Security

32 day(s) remaining.

✓

Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

HTTP security headers16 / 35 pts · Security

4 of 9 evaluated headers detected.

PTR reverse DNS0 / 30 pts · Network

PTR not detected.

IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓

DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

HTTP response0 / 40 pts · Availability

HTTP/2 503

✓

HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)

190.92.127.232

AAAA

0 record(s)

—

Not configured

CNAME

0 record(s)

—

Not configured

MX

3 record(s)

6 grai2.granma.cu.
6 mx2.granma.cu.
5 mx1.granma.cu.

TXT

2 record(s)

"Granma - Organo oficial del Comite Central del Partido Comunista de Cuba"
"v=spf1 a mx a:mx1.granma.cu a:mx2.granma.cu a:grai2.granma.cu ip4:200.55.139.40 -all"

NS

2 record(s)

ns1.cip.cu.
ns2.cip.cu.

SOA

1 record(s)

granma.cu. admin.cu. 2025012101 3600 1800 604800 86400

CAA

0 record(s)

—

Not configured

DS

0 record(s)

—

Not configured

DNSKEY

0 record(s)

—

Not configured

RRSIG

0 record(s)

—

Not configured

NSEC

0 record(s)

—

Not configured

NSEC3

0 record(s)

—

Not configured

SRV

3 record(s)

5 5 5222 jabber.granma.cu.
5 5 5223 jabber.granma.cu.
5 5 5269 jabber.granma.cu.

NAPTR

0 record(s)

—

Not configured

TLSA

0 record(s)

—

Not configured

SSHFP

0 record(s)

—

Not configured

SPF

Configured

v=spf1 a mx a:mx1.granma.cu a:mx2.granma.cu a:grai2.granma.cu ip4:200.55.139.40 -all

DMARC

Not configured

—

Not configured

DKIM

Selector dkim

v=DKIM1; t=s; p=MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAzAxwgrQQqPn1ax8BJN7mobGKWkc6PFrscvLoOVGBVaN+NObcIBW/KcHYDrU53D/OqF67rU6cH5Uh4uFl/QLZR2VvuUHxwgwfkXnJE9/XMgsT3xyYr959XMB8mF/so/piDBR6UeGfe4P4pu7TxyfcCPVJ7YVQQsiOWdliUrIfwICWwSd8FSIYwyuzcRBo7URfpEAzgpLC0u99BMC5tUcDHSnnzHFtjexMcBUz+n1o4KEFL3OYwp8m5/vlZHXgsv0UstPqlbSAnUpp/+oO3IcOdIvQhvsi61gvV19fatUkXQjDe2T8+O+bUv9hHsBYCvybb5l8yDJZBJjWWyw2Q4lJnQIDAQAB

Analyzed webpageMetadata and HTTP response

Title and description

Extracted

Title

Description

Final URL

https://www.granma.cu/

HTTP status

503

HTTP

Status

HTTP/2 503

Final URL

https://www.granma.cu/

Version

Server

X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available

Yes

Issuer

Let's Encrypt

granma.cu

Valid from

2026-06-14T13:35:31-05:00

Valid until

2026-09-12T13:35:30-05:00

Days remaining

Protocol

TLSv1.2

Cipher

ECDHE-RSA-AES256-GCM-SHA384

Security headers

4 active

✓

HSTSImplemented

✓

Content Security PolicyImplemented

✓

X-Content-Type-OptionsImplemented

✓

X-Frame-OptionsImplemented

—

Referrer PolicyNot detected

—

Permissions PolicyNot detected

—

Cross-Origin-Opener-PolicyNot detected

—

Cross-Origin-Embedder-PolicyNot detected

—

Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent

✓

Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency

Google

8.8.8.8

190.92.127.232

318,20 ms

Cloudflare

1.1.1.1

190.92.127.232

123,78 ms

Quad9

9.9.9.9

190.92.127.232

151,35 ms

OpenDNS

208.67.222.222

190.92.127.232

433,62 ms

AdGuard

94.140.14.14

190.92.127.232

252,85 ms

IP, geolocation and ASNAssociated network information

190.92.127.232

No data

success

country

region

city

asn

organization

isp

Visitor information

Visitor

216.73.217.62

reverse

country

country_code

region

city

latitude

longitude

isp

organization

asn

timezone

browser

Other

language

user_agent

Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)

is_bot

Yes

cloudflare

SMTPEmail port connectivity

grai2.granma.cu

Port 25: Closed/unreachable - 101.1 ms - 
Port 465: Closed/unreachable - 4020.9 ms - 
Port 587: Closed/unreachable - 4014.6 ms -

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