Certificate Decoder
Online decoder for PEM encoded SSL certificates.
Drop your certificate file here, or click to select one.
The Certificate Decoder/Parser decodes your PEM encoded SSL certificate to help you verify that it contains the correct information.
A PEM encoded certificate is a block of text that contains all of the certificate information and public key usually saved as a certificate file.
You can use this tool by pasting the text of your certificate into the box below and the Certificate Decoder will do the rest. Your certificate should start with "-----BEGIN CERTIFICATE----- " and end with "-----END CERTIFICATE----- "
Understanding and Verifying Your SSL Certificate
Decode and Verify Your Certificate Details
Decoding your PEM-encoded certificate using a Certificate Decoder or Parser is a fundamental step in confirming its validity and content. This process transforms the encoded text into a readable format, allowing you to meticulously examine the crucial information embedded within, such as the issued domain(s), the issuing Certificate Authority, and the certificate's active lifespan.
Confirm Correct Certificate Information
Relying solely on the visual cues of a browser lock icon isn't enough to guarantee the integrity of your SSL setup. A Certificate Decoder enables you to delve deeper and validate that the certificate installed on your server genuinely matches your domain and organizational details. By verifying this information, you prevent potential misconfigurations or even malicious attempts to impersonate your website, safeguarding both your reputation and your users' data.
Check Certificate Validity and Configuration
Expired or incorrectly configured SSL certificates can lead to website access errors and loss of user trust. Utilizing a Certificate Decoder as part of your regular maintenance routine allows you to proactively check the certificate's validity period and ensure all configuration parameters are correct. This simple yet vital practice helps prevent unexpected website downtime and maintains a seamless and secure experience for your visitors, reinforcing their confidence in your online presence.