Title: [Plugin: Autoptimize] Cache Problem
Last modified: August 20, 2016

---

# [Plugin: Autoptimize] Cache Problem

 *  Resolved [BeautyPirate](https://wordpress.org/support/users/beautypirate/)
 * (@beautypirate)
 * [14 years ago](https://wordpress.org/support/topic/plugin-autoptimize-cache-problem/)
 * Hey ya, I´m getting this as my LAST error on fpt.pingdom.com and just because
   I like a 100/100 rating, I´m interested how I could get rid of this?
 * “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:”
 * Three Autoptimize .php file links.
 * [http://wordpress.org/extend/plugins/autoptimize/](http://wordpress.org/extend/plugins/autoptimize/)

Viewing 1 replies (of 1 total)

 *  Thread Starter [BeautyPirate](https://wordpress.org/support/users/beautypirate/)
 * (@beautypirate)
 * [14 years ago](https://wordpress.org/support/topic/plugin-autoptimize-cache-problem/#post-2786013)
 * I´ve got it.
 * Disable CSS/JS compression. Use mod_deflate instead. This will deliver clean 
   readable css and js files. I´m on 100/100 points on pingdom now.

Viewing 1 replies (of 1 total)

The topic ‘[Plugin: Autoptimize] Cache Problem’ is closed to new replies.

 * ![](https://ps.w.org/autoptimize/assets/icon-256X256.png?rev=2211608)
 * [Autoptimize](https://wordpress.org/plugins/autoptimize/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/autoptimize/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/autoptimize/)
 * [Active Topics](https://wordpress.org/support/plugin/autoptimize/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/autoptimize/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/autoptimize/reviews/)

 * 1 reply
 * 1 participant
 * Last reply from: [BeautyPirate](https://wordpress.org/support/users/beautypirate/)
 * Last activity: [14 years ago](https://wordpress.org/support/topic/plugin-autoptimize-cache-problem/#post-2786013)
 * Status: resolved