Https Certificate Checker
This tool verifies HTTPS certificates for websites, ensuring secure connections and protecting user data – crucial for online security.
Install on your platform
We auto-selected Claude Code based on this skill’s supported platforms.
Run in terminal (recommended)
claude mcp add https-certificate-checker npx -- -y @trustedskills/https-certificate-checker
Or manually add to ~/.claude/settings.json
{
"mcpServers": {
"https-certificate-checker": {
"command": "npx",
"args": [
"-y",
"@trustedskills/https-certificate-checker"
]
}
}
}Requires Claude Code (claude CLI). Run claude --version to verify your install.
About This Skill
What it does
This skill checks the validity and details of HTTPS certificates for a given domain. It retrieves certificate information such as expiration dates, issuer, and subject names. This allows you to verify if a website's security is up-to-date and identify potential issues with its SSL/TLS configuration.
When to use it
- Security Audits: Quickly assess the HTTPS certificates of websites during routine security checks.
- Troubleshooting Website Errors: Diagnose errors related to expired or invalid SSL/TLS certificates, which can cause connection problems.
- Verifying Certificate Details: Confirm specific details about a certificate (e.g., expiration date) for compliance or verification purposes.
- Automated Monitoring: Integrate into scripts to automatically monitor the validity of certificates and alert on potential expirations.
Key capabilities
- Retrieves HTTPS certificate information.
- Checks certificate validity.
- Provides details like issuer, subject, and expiration date.
Example prompts
- "Check the SSL certificate for example.com."
- "What is the expiration date of the certificate for google.com?"
- "Is the HTTPS certificate for mywebsite.net valid?"
Tips & gotchas
The skill requires an internet connection to retrieve certificate information. Results are only as reliable as the publicly available certificate data.
Tags
TrustedSkills Verification
Unlike other registries that point to live repositories, TrustedSkills pins every skill to a verified commit hash. This protects you from malicious updates — what you install today is exactly what was reviewed and verified.
Security Audits
| Gen Agent Trust Hub | Pass |
| Socket | Pass |
| Snyk | Pass |
🌐 Community
Passed automated security scans.