urlCompression Element [IIS Settings Schema]
Note
For more information about the urlCompression element, see the following topic on the Microsoft IIS.net Web site: URL Compression <urlCompression>.
Configures compression of static and dynamic content.
Syntax
Attributes and Elements
The following sections describe attributes, child elements, and parent elements for this section.
Attributes
Attribute |
Description |
|---|---|
doDynamicCompression |
Optional Boolean attribute. Specifies whether dynamic compression is enabled for URLs. Note Use of dynamic compression may increase processor utilization and reduce the overall performance of the Web server. The default value is false. |
doStaticCompression |
Optional Boolean attribute. Specifies whether static compression is enabled for URLs. The default value is true. |
dynamicCompressionBeforeCache |
Optional Boolean attribute. Specifies whether the currently available response is dynamically compressed before it is put into the output cache. For more information, see the Remarks section. The default value is false. |
Child Elements
None.
Parent Elements
Element |
Description |
|---|---|
configuration |
Specifies the root element in every configuration file that is used by IIS 7. |
system.webServer |
Specifies the top-level section group (in ApplicationHost.config) in which this element is defined. |
Remarks
For more information about the urlCompression element, see the following topic on the Microsoft IIS.net Web site: URL Compression <urlCompression>.
When the dynamicCompressionBeforeCache attribute is true, IIS dynamically compresses the response the first time a request is made. The compressed response is put into the output cache, and the cached response is sent to the client. Subsequent requests are served from the compressed response in the output cache.
When dynamicCompressionBeforeCache is false, IIS puts the noncompressed response into the output cache. Then, every time that the response is requested, IIS dynamically compresses the cached response as it is sent to the client.
If you set the dynamicCompressionBeforeCache attribute to true, the CPU will dynamically compress the response only one time instead of every time that the page is requested. Because dynamic compression is CPU-intensive, a setting of true can reduce the server load and improve site throughput.
Note
If the dynamicCompressionBeforeCache attribute is true when the output cache response has been flushed, dynamic compression will not be performed before the response is put into the output cache. However, if the doDynamicCompression attribute is true, dynamic compression will still occur after the response has been put into the output cache.
Element Information
Configuration locations |
Machine.config ApplicationHost.config Root application Web.config Application Web.config Directory Web.config |
Requirements |
Microsoft Internet Information Services (IIS) version 7.0 |