You can enable and configure content-encoding GZIP compression at the domain level or Web application level. Values for a specific Web application override domain-level values .To configure GZIP compression for all Web applications in the domain:

1. If you have not already done so, in the Change Center of the Administration Console, click Lock & Edit.
2. In the Domain Structure tree, select your domain.
3. Select Configuration > Web Applications
4. Define the following domain-wide Web application configuration settings for GZIP compression:
   • GZIP Compression Enabled: enable or disable GZIP compression for all Web applications. By default, this value is not enabled.
   • GZIP Compression Min. Content Length: configure the minimum content length to trigger GZIP compression. The default value is 2048.
   • GZIP Compression Content Type: configure the type of content to be included in compression. The default value is text/html, text/xml, text/plain. Click Save to save any changes.
5. To activate these changes, in the Change Center for the Administration Console, click Activate Changes.

Note: Not all changes take effect immediately - some require a restart.