Check SSL certificate details and expiration date
The SSL Checker by ToolsGenerate is a free online tool that analyzes SSL/TLS certificates for any website. Whether you're checking certificate validity, debugging HTTPS issues, or auditing security configurations, our tool provides comprehensive SSL analysis.
Check certificate validity, encryption strength, issuer details, and get security grades for better website security management.
SSL (Secure Sockets Layer) and TLS (Transport Layer Security) are cryptographic protocols that secure communications over computer networks. They encrypt data between web servers and browsers.
SSL certificates provide:
Checking SSL certificates is simple:
The tool provides:
Domain Name: The domain the certificate is issued for.
Issuer: The Certificate Authority (CA) that issued the certificate.
Validity Period: Start and expiration dates.
Public Key: Used for encryption.
Signature: Digital signature verifying authenticity.
A+: Excellent security configuration. All best practices implemented.
A: Good security. Minor improvements possible.
B: Acceptable but has some security issues.
C: Poor security. Immediate improvements needed.
F: Critical security issues. Certificate may be untrusted.
✔ Use TLS 1.2 or 1.3 (disable older versions)
✔ Use strong cipher suites only
✔ Enable HSTS for HTTPS enforcement
✔ Monitor certificate expiration
✔ Use certificates from trusted CAs
✔ Implement perfect forward secrecy
Regular SSL monitoring prevents security breaches and maintains user trust.
Find answers to common questions about our SSL Checker
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