Configuring compression rules
To offload compression from your backend servers, you can configure FortiADC to perform HTTP compression on behalf of the server.
The following content types can be compressed:
• application/javascript
• application/soap+xml
• application/x-javascript
• application/xml
• text/css
• text/html
• text/javascript
• text/plain
• text/xml
Not all HTTP responses should be compressed. Compression offers the greatest performance improvements when applied to URLs whose media types compress well, such as repetitive text such as tagged HTML, and scripts such as JavaScript. Files that already contain efficient compression such as GIF images usually should not be compressed, as the CPU usage and time spent compressing them will result in an increased delay rather than network throughput improvement. Plain text files where no words are repeated, such as configurations with unique URLs or IPs, also may not be appropriate for compression.
Before you begin:
• You must have a good understanding of HTTP compression and knowledge of the content types served from the backend real servers.
• You must have Read-Write permission for Load Balance settings.
Compression is not enabled by default. After you have configured a compression rule, you can select it in the profile configuration. To enable compression, select the profile when you configure the virtual server.
To configure compression:
1. Go to Server Load Balance > Profile.
2. Click the Compression tab.
3. Click Add to display the configuration editor.
4. Complete the configuration as described in
Table 11.
5. Save the configuration.
Table 11: Compression configuration
Settings | Guidelines |
Name | Unique name. No spaces or special characters. After you initially save the configuration, you cannot edit the name. |
URI List Type | Specify whether to include or exclude items in the list from compression. |
URI List | Click Add and specify URIs to build the list. You can use regular expressions. |
Content Types | Click Add and select from the following content types to build the list: • application/javascript • application/soap+xml • application/x-javascript • application/xml • text/css • text/html • text/javascript • text/plain • text/xml |