Title: [Plugin: W3 Total Cache] Specify cache validator for non-wordpress resources?
Last modified: August 20, 2016

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# [Plugin: W3 Total Cache] Specify cache validator for non-wordpress resources?

 *  [atdblog](https://wordpress.org/support/users/atdblog/)
 * (@atdblog)
 * [13 years, 11 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-specify-cache-validator-for-non-wordpress-resources/)
 * Installed and setup w3tc last night (switched from Quick Cache) and seem to be
   having good results; raised my google page speed from average of 80 to 85-87.
   I wanted to see what else I could do so I tested it in Pingdom (got 80/100) and
   now I’m going through the items I can fix.
 * Here’s one:
 * >  The following resources are missing a cache validator. Resources that do not
   > specify a cache validator cannot be refreshed efficiently. Specify a Last-Modified
   > or ETag header to enable cache validation for the following resources:
   > (two examples:)
   >  [http://i4.ytimg.com/vi/kijwc1DTuM0/hqdefault.jpg](http://i4.ytimg.com/vi/kijwc1DTuM0/hqdefault.jpg)
   > [http://w.sharethis.com/button/buttons.js](http://w.sharethis.com/button/buttons.js)
 * Is there a way to specify a cache-validator for these non-wordpress resources?
   Maybe in .htaccess?
 * [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/)

Viewing 1 replies (of 1 total)

 *  Plugin Contributor [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-specify-cache-validator-for-non-wordpress-resources/#post-2897139)
 * Those are 3rd party resources, so I don’t think it’s possible.

Viewing 1 replies (of 1 total)

The topic ‘[Plugin: W3 Total Cache] Specify cache validator for non-wordpress resources?’
is closed to new replies.

 * ![](https://ps.w.org/w3-total-cache/assets/icon-256x256.png?rev=1041806)
 * [W3 Total Cache](https://wordpress.org/plugins/w3-total-cache/)
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## Tags

 * [cache-validator](https://wordpress.org/support/topic-tag/cache-validator/)
 * [Pingdom](https://wordpress.org/support/topic-tag/pingdom/)

 * 1 reply
 * 2 participants
 * Last reply from: [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * Last activity: [13 years, 10 months ago](https://wordpress.org/support/topic/plugin-w3-total-cache-specify-cache-validator-for-non-wordpress-resources/#post-2897139)
 * Status: not resolved