SSL Certificate Checker

Check SSL/TLS certificate details for any domain

🔒 This tool queries public APIs. Some lookups may be limited by CORS or rate limits. For comprehensive results, try command-line tools like nslookup, dig, or curl.

How to Use Ssl Checker

  1. Enter the URL or data you want to check.
  2. Click the Check/Test button to analyze.
  3. Review the results and recommendations.

All processing happens locally in your browser. Your data is never uploaded to any server.

Frequently Asked Questions

Is Ssl Checker free to use?

Yes, completely free. No signup, no limits. All processing happens in your browser — your data never leaves your device.

Does Ssl Checker work on mobile?

Yes, it works on all devices including phones and tablets. The interface is fully responsive.

Is my data safe?

Absolutely. Everything runs locally in your browser using JavaScript. No data is uploaded to any server.