.CER File Extension

Are you having difficulty opening a file that ends with .CER? Such files can be executed only by certain programs. If you cannot open the .CER file, it can be due to the following reasons: either you do not have an appropriate program to open it, or your file association is corrupted. For more information about this extension, please read the article below.

What is a .CER file?

.CER file belongs to the category of Web Files used in operating systems such as Windows 11, 10, Windows 7, Windows 8 / 8.1, Windows Vista, Windows XP.

cer

Developer: N/A

File Type: Internet Security Certificate

Category: Web Files

Format: Binary

.CER file is associated with Internet Security Certificate developed by N/A, has a Binary Format and belongs to Web Files category.

A CER (Internet Security Certificate) file is a digital security certificate. These files are typically used to secure communication between a web browser and a website and between other online entities.

More information

A CER file contains information that identifies a website or other Internet organization as a trusted source. This information includes the site's name, address, and public key. CER files can be opened only using suitable software.

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