SSL Certificate Checker
Inspect a site's TLS certificate: issuer, validity dates, SANs and protocol.
How to Use the SSL Certificate Checker
- Enter a domain or password in the field above. Example values are pre-filled where helpful.
- Press the main action button to run the tool. Most results appear instantly.
- Review the results. Values can be selected and copied; some tools offer a download button.
- Adjust the input or options and run again to compare results.
What the SSL Certificate Checker Does
Inspect a site's TLS certificate: issuer, validity dates, SANs and protocol. It is part of the Cyber Security Tools collection on MIKRODINET, a growing set of free utilities for site owners, developers, network administrators and curious users.
When to Use It
Use the SSL Certificate Checker when troubleshooting, auditing a website, preparing a launch, learning how the underlying technology works or double-checking results from another service. Combining it with related tools gives a fuller picture.
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External References
Frequently Asked Questions
Is the SSL Certificate Checker free to use?
Yes. The SSL Certificate Checker on MIKRODINET is completely free, with no sign-up required.
Is my data safe when I use the SSL Certificate Checker?
Tools that work offline process everything in your browser. Network checks send only the host or URL you enter, and queries are not stored.
How accurate is the SSL Certificate Checker?
Results come from live public data or standard algorithms at the moment you run the check. For critical decisions, confirm results with a second source.