Content Characteristics and DD
This behavior lets you define specific information about your content to optimize its delivery.
Use this to set the overall volume of objects to be delivered through this property.
- Small: Select if all of your content is less than 100G.
- Medium: Select this if all of your content 100G to 1TB.
- Large: Select this is all of your content ranges from 1TB to 100TB.
- Extra Large: Select this if all of your content is greater than 100TB.
- Unknown (Default): Select this if you don't know the volume.
Select how often the content is requested:
- Long Tail. This applies if most of the traffic volume consists of a small number of requests for content that has relatively long life.
- Popular. This applies if most of the traffic volume consists of a large number of requests for content that has a relatively short life.
- Other. Select this if your use case isn't available for selection, or it is a combination of the available selections.
- Unknown (Default). Select this if you're not sure of the popularity level for the content to be delivered by this property.
Origin Object Size
Use this to set a range for the size of the objects delivered through this property:
- Less than 1MB
- 10-100MB. Partial Object Caching is automatically enabled with this setting.
- Greater than 100 MB. Partial Object Caching is automatically enabled with this setting.
- Unknown. Set to this value if you're unsure of the specific object size, or you don't have a definitive fixed size for target content. Partial Object Caching is automatically enabled with this setting for objects greater than 10 MB in size.
Do you need Partial Object Caching (POC)?
- 10-100 MB.
- Greater than 100 MB.
- Unknown. POC is applied for an object that is greater than 10 MB in size, if the object falls into what you've selected for Content Type. For example, if you've selected "Software" as your Content Type, POC is enabled if a file of that type is requested that's over 10MB in size.
If you specify a "large files" setting, but your origin never actually serves files in that size range, the Akamai platform makes additional requests to the origin. This can impact overall performance and access. This happens because the edge server requests the first byte of each object to determine if the minimum object size criteria has been met—at least 10MB. Once that check fails, the server simply re-requests the entire object from the origin.
We recommend that you verify the size of your delivery objects on your origin, and select the appropriate size to ensure that POC is enabled or disabled, as necessary.
If you're delivering a specific type of content with this property configuration, you can select it here to help optimize delivery.
- Video: This includes the full download of video media—not the streaming of VoD or live content.
- Software. This includes full non-game applications ("apps") or installables.
- Software Patch.
- Game Patch.
- Other Downloads. Select this if your use case isn't available for selection, or it is a combination of the available selections.
- Unknown (Default). Leave it set to this if you're unsure of the specific content type.
Optimize for Foreground Download
Set this slider to Yes to optimize the delivery throughput and download times for large files. This feature requires approval for use, and it must be added to your contract. Please contact your Account Representative for access.
Best Practices settings applied by default
We automatically apply various "Best Practices" settings to coincide with the Content Characteristics behavior in your property configuration. (You don't need to manually define these via individual behaviors, because we preset them for optimal performance.)
|Basic HTTP Settings||
|Cross Origin Resource Sharing (CORS)||No CORS headers are sent to the client.|
|GZIP Content Compression||
|Large File Optimization||
Content Characteristics and Mixed Mode Configuration
This is a "use case-based" behavior that's automatically included in the Default Rule and used to optimize delivery for all requests. However, with Mixed Mode Configuration for DD, you can also include it in another rule and apply different match criteria to have separate requests use different content characteristics optimizations.
For more details, see How to use Mixed Mode with DD.