predictivePrefetching

Property Manager name: Predictive Prefetching
Behavior version: The v2025-02-18 rule format supports the predictivePrefetching behavior v1.1.
Rule format status: Deprecated, outdated rule format
Access: Read/Write
Allowed in includes: Yes

This behavior potentially reduces the client's page load time by pre-caching objects based on historical data for the page, not just its current set of referenced objects. It also detects second-level dependencies, such as objects retrieved by JavaScript.

Note that predictivePrefetching is disabled in Ion and Dynamic Site Accelerator by default. To enable the behavior, you need to activate it in your property.

Option	Type	Description
`enabled`	boolean	Enables the predictive prefetching behavior.	{"displayType":"boolean","tag":"input","type":"checkbox"}
`accuracyTarget`	enum	The level of prefetching. A higher level results in better client performance, but potentially greater load on the origin.	{"displayType":"enum","options":["LOW","MEDIUM","HIGH"],"tag":"select"} {"if":{"attribute":"enabled","op":"eq","value":true}}
	`LOW`	Low.
	`MEDIUM`	Medium.
	`HIGH`	High.