How to use DigiCert SSL Certificate Checker
- Paste or load a PEM certificate into DigiCert SSL Certificate Checker.
- Press Parse certificate to run it locally in your browser.
- Read the subject, issuer, validity dates and expiry that DigiCert SSL Certificate Checker lays out for you.
About this tool
Everything DigiCert SSL Certificate Checker does happens on your own device. Paste a PEM certificate and DigiCert SSL Certificate Checker parses the X.509 fields entirely on your device.
The expiry countdown is computed locally, and nothing about the certificate is transmitted. It behaves the same on desktop and mobile, with nothing stored remotely.
Frequently asked questions
What does DigiCert SSL Certificate Checker do?
DigiCert SSL Certificate Checker runs entirely on your device: add your input, and it checks it locally in real time.
Is DigiCert SSL Certificate Checker free to use?
Yes — DigiCert SSL Certificate Checker is completely free, with no usage limits.
Where is my data processed by DigiCert SSL Certificate Checker?
Entirely in your browser — DigiCert SSL Certificate Checker keeps your data on your own machine and sends nothing anywhere.
How do I inspect a live site's certificate in DigiCert SSL Certificate Checker?
Export the certificate from your browser's padlock as PEM and paste it into DigiCert SSL Certificate Checker; it decodes the ASN.1/DER fields entirely on your device.
Does DigiCert SSL Certificate Checker work offline?
Once the page has loaded, DigiCert SSL Certificate Checker keeps working with no network connection.