SSL Expiry & Security Analyzer - Check Certificate Expiration

SSL Expiry & Security Analyzer

Check when a site's SSL certificate expires and whether it uses strong security protocols.


How to Use This Tool

This tool connects to the specified domain over port 443 and retrieves SSL certificate information. It shows the expiration date and flags weak configurations (e.g., expired certificates, short validity, or insecure protocols).

Example Output:

Hostname: example.com
Valid From: Jan 15 00:00:00 2024 GMT
Expires On: Jan 14 23:59:59 2025 GMT
Days Left: 294 days
Protocol: TLSv1.3
Cipher: TLS_AES_256_GCM_SHA384
Issuer: Let's Encrypt

Security Warnings:
- Uses weak cipher: RC4-SHA
- Protocol is outdated: TLSv1.0