Title: Persistent object cache problems
Last modified: July 5, 2023

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# Persistent object cache problems

 *  [newbie63](https://wordpress.org/support/users/newbie63/)
 * (@newbie63)
 * [2 years, 11 months ago](https://wordpress.org/support/topic/persistent-object-cache-problems/)
 * This was started under my question “How to use wp-optimize” earlier this year.
   It was marked “Resolved” by someone, but it is not. I just gave up.
 * **At issue was two warnings from Site Health checkup regarding Caching issues.
   One was resolved by eliminating one of the two Cache plugins I had, down to just
   wp-optimize. Still had an issue with “persistent object cache.”**
 * This is what Venkat Raj at wordpress.org forum said:
 * What site health checkup says is to use an object cache. In simple terms, Object
   cache caches the result of database queries. When the same query needs to be 
   done again, it serves result from cache rather than fresh database query. This
   is something your hosting provider can provide. Based on the type of object cache(
   Redis, Memcached) they provide you need to use respective plugin
   [https://wordpress.org/plugins/redis-cache/](https://wordpress.org/plugins/redis-cache/)
   [https://wordpress.org/plugins/memcached/](https://wordpress.org/plugins/memcached/)
 * **This is what Site Health checkup says, more precisely (details):**
 * **Page cache is not detected but the server response time is OKPerformance**
 * Page cache enhances the speed and performance of your site by saving and serving
   static pages instead of calling for a page every time a user visits.
 * Page cache is detected by looking for an active page cache plugin as well as 
   making three requests to the homepage and looking for one or more of the following
   HTTP client caching response headers:`cache-control`, `expires`, `age`, `last-
   modified`, `etag`, `x-cache-enabled`, `x-cache-disabled`, `x-srcache-store-status`,`
   x-srcache-fetch-status.`
    -  Median server response time was 249 milliseconds. This is less than the recommended
      600 milliseconds threshold.
    -  No client caching response headers were detected.
    -  A page cache plugin was not detected.
 * Site Health also says that my site “supports APCu”  which is neither of the two
   Venkat Raj suggested.
 * I sent all of this into my topic and got no response. Recently, I’ve had other
   issues and mentioned this again and was told to contact Hosting company (who’ve
   acted like I was speaking Greek).
 * Anybody out there have any guidance?
 * The page I need help with: _[[log in](https://login.wordpress.org/?redirect_to=https%3A%2F%2Fwordpress.org%2Fsupport%2Ftopic%2Fpersistent-object-cache-problems%2F%3Foutput_format%3Dmd&locale=en_US)
   to see the link]_

Viewing 1 replies (of 1 total)

 *  Moderator [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/)
 * (@sterndata)
 * Volunteer Forum Moderator
 * [2 years, 11 months ago](https://wordpress.org/support/topic/persistent-object-cache-problems/#post-16872858)
 * This is something to discuss with your host, but frankly, if the site runs alright,
   ignore Site Health.

Viewing 1 replies (of 1 total)

The topic ‘Persistent object cache problems’ is closed to new replies.

 * In: [Everything else WordPress](https://wordpress.org/support/forum/miscellaneous/)
 * 1 reply
 * 2 participants
 * Last reply from: [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/)
 * Last activity: [2 years, 11 months ago](https://wordpress.org/support/topic/persistent-object-cache-problems/#post-16872858)
 * Status: not resolved

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