FileInfo - The File Extensions Database
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Today's File Type – October 19th
A CER file is a security file provided by a third party Certificate Authority, such as VeriSign or Thwate, that verifies the authenticity of a website. It is installed on a web server to establish the validity of a certain website hosted on the server.
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Recent Updates
- October 17, 2017Upgrading to macOS High Sierra? Read about the new Apple File System (APFS).
- October 9, 2017Learn how to change file permissions in Windows 10 with this video tutorial.
- March 29, 2017Learn how to show file extensions in Windows 10 in three easy steps.
- February 8, 2017Tax season is here! Learn about the different tax file formats and the programs that open them.
- January 24, 2017FileInfo now uses HTTPS for added security.
- October 20, 2016Add an HTML5 file extension search box to your website!