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Verify that your SSL certificate matches its corresponding CSR or Private Key. Any mismatch between pairs will prevent your certificate from being installed correctly.
Paste your SSL Certificate, then select whether to compare it against a CSR or a Private Key, and paste that value in the second field.
A mismatch between your SSL certificate and its Private Key or CSR will cause installation errors and browser warnings. This tool compares the cryptographic fingerprints of both files to confirm they are a matching pair before you install them on your server.
Verify the SSL certificate was signed using the corresponding Private Key. Mismatches cause TLS handshake failures and must be resolved by re-issuing the certificate.
Confirm that the issued SSL certificate corresponds to the CSR that was submitted to the Certificate Authority. This verifies the certificate was issued for the correct domain.
Catching mismatches before installation saves time and avoids server downtime. Run this check before uploading your certificate and key to Apache, Nginx, or IIS.
If you regenerated a CSR or requested a new certificate, use this matcher to confirm the new certificate corresponds to your existing private key before deploying.
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