Title: Customize page cache behavior
Author: WordPress VIP Documentation
Published: September 9, 2020
Last modified: November 19, 2025

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 1. [Caching](https://docs.wpvip.com/caching/)
 2. [Page cache](https://docs.wpvip.com/caching/page-cache/)
 3. Customize page cache behavior

#  Customize page cache behavior

Caching is essential for achieving the high levels of scaling and performance that
many applications expect. The VIP Platform’s content delivery network (CDN) is a
[global network of edge servers](https://docs.wpvip.com/infrastructure/edge-cache/global-locations/)
that are set to default configurations and behaviors that maximize cache hit rates.

Response headers and the VIP Cache Personalization API can be leveraged by WordPress
and Node.js applications to customize some of the default behaviors and responses
of the page cache.

 * 
   ### 󠀁[Vary HTTP response header](https://docs.wpvip.com/caching/page-cache/customize-behavior/vary-http-response-header/)󠁿
   
 * The Vary HTTP response header is respected for a limited set of values on the
   VIP Platform.
 * 
   ### 󠀁[IP geolocation](https://docs.wpvip.com/caching/page-cache/customize-behavior/ip-geolocation/)󠁿
   
 * The VIP edge cache respects a set of geolocation response headers that make it
   possible to deliver variations of cached content based on the end user’s global
   location.
 * 
   ### 󠀁[Cache-control headers](https://docs.wpvip.com/caching/page-cache/customize-behavior/cache-control-headers/)󠁿
   
 * The cache-control HTTP header specifies directives that control how browsers,
   CDNs, and proxies handle cached responses. In most cases, the cache-control header
   value for WordPress and Node.js applications can be set to custom response directives.
 * 
   ### 󠀁[The VIP Cache Personalization API](https://docs.wpvip.com/caching/page-cache/customize-behavior/cache-personalization-api/)󠁿
   
 * The VIP Cache Personalization API allows a new cache group to be created and 
   users to be assigned to specific segments within that group.

Last updated: November 19, 2025