Paste a PEM-encoded certificate signing request to see its Common Name, Organization, Subject Alternative Names, key type and size, and signature algorithm — before you send it to a CA.
Copy the full PEM block, including the BEGIN/END lines.
The subject, SANs, key details, and signature algorithm are parsed and shown right away.
Catch a typo'd domain or missing SAN before a CA issues the wrong certificate.
Common Name, Organization, Organizational Unit, Subject Alternative Names, key algorithm and size, and the signature algorithm.
No — decoding happens entirely in your browser using JavaScript.
To verify the subject and SANs are correct before submitting to a CA, or to check a CSR you received from someone else.
