Verify Website SSL Security Online for Free
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About This Tool
The SSL Certificate Checker audits the security certificate of any website — verifying its validity, issuing authority, and expiration date — essential for ensuring user trust and protecting sensitive data. it helps you avoid "Insecure Connection" warnings. This tool is free, secure, and performs real-time security scans.
How to Use
- 1
Enter the full URL or domain of the site you want to test.
- 2
Click the Check SSL button to perform a security audit.
- 3
The SSL certificate details — expiry, issuer, SANs, and chain — appear instantly.
- 4
Review the certificate details to ensure the site is safe and up-to-date.
Frequently Asked Questions
What does "certificate chain" mean?
An SSL chain goes from your certificate up through intermediate CAs to a root CA trusted by browsers. A broken chain causes trust errors even if your cert is valid.
Is this SSL checker free?
Yes. Completely free with no account required.
Why is an SSL certificate important?
SSL (Secure Sockets Layer) encrypts the data between a user and a server, which is critical for security and a major SEO ranking factor.