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SSL Checker

Inspect the TLS certificate, validity dates and negotiated protocol.

Run SSL CheckerInspect the TLS/SSL certificate of a website.
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Run SSL Checker to view detailed results

What is SSL Checker?

An SSL checker inspects a public HTTPS certificate, its validity dates, issuer and negotiated TLS protocol. It helps identify certificate expiry and basic TLS configuration problems.

When to use this tool

  • Check public network or website information quickly.
  • Diagnose connectivity and configuration issues.
  • Verify results while troubleshooting.
  • Use a clear, browser-based diagnostic view.

SSL Checker — Frequently Asked Questions

What does the SSL Checker do?

Inspect the TLS certificate, validity dates and negotiated protocol.

How do I use the SSL Checker?

Enter the requested https url in the form above, then select “Check SSL”. Review the returned information in the results panel.

Is the SSL Checker free to use?

The public Spexo networking tools are available online without a paid subscription or account for basic use.

Why can results vary or be unavailable?

Results depend on the target host, public DNS or registration data, network path, remote service availability and current conditions. Some services limit or block automated requests.