tls-certificate-analysis

Installation
SKILL.md
Contains Hooks

This skill uses Claude hooks which can execute code automatically in response to events. Review carefully before installing.

TLS Certificate Analysis Skill

Purpose

Analyze TLS certificates to extract issuer information, Subject Alternative Names, protocol versions, and fingerprint data for technology identification.

Operations

1. extract_certificate_metadata

Connect to server and extract certificate details.

Command:

echo | openssl s_client -connect {domain}:443 -servername {domain} 2>/dev/null | openssl x509 -noout -text

Fields to Extract:

  • Subject (CN, O, OU)
Related skills
Installs
11
GitHub Stars
258
First Seen
Mar 9, 2026