Configuring the Server to Serve Pre-Compressed Content

You can configure the server to generate and store pre-compressed versions of files in a specified directory. When configured, and only if an Accept-encoding: gzip header is received, all requests for files from a directory configured to serve pre-compressed content are redirected to requests for an equivalent compressed file from that directory, if such a file exists. For example, if the Web server receives a request for myfile.html, and both myfile.html and myfile.html.gz exist, then those requests with an appropriate Accept-encoding header receive the compressed file.

To configure your server to serve pre-compressed content, perform the following steps:

To Change Pre-compressed Content Settings

1. From the virtual server page, click the Content Management tab.

2. Click the General sub tab.

3. Go to the Compression > Precompressed Content section and select from the following options.

   • Precompressed Content — Enable/Disable. enables you to instruct the server to serve pre-compressed content for the selected resource.

   • Age Checking — Specifies whether to check if the compressed version is older than the non-compressed version.

     If selected, then the compressed version, even if it is older than the non-compressed version, will not be checked.

   • Insert Vary Header — Specifies whether to use a Vary: Accept-encoding header.

     If selected, then a Vary: Accept-encoding header is always inserted when a compressed version of a file is selected.

     If not selected, then a Vary: Accept-encoding header is never inserted.

4. Click Save.