Title: Cache problem
Last modified: June 6, 2017

---

# Cache problem

 *  [hostingip](https://wordpress.org/support/users/hostingip/)
 * (@hostingip)
 * [8 years, 11 months ago](https://wordpress.org/support/topic/cach-problem/)
 * Dear sir, madam,
 * Throughout this email I want to inform you about a problem my site -builders 
   have discovered within WordPress. I sincerely need to point out that a quick 
   response is appreciated. We need to go live this week.
 * The problem has to do with the ‘cache’ within WordPress probably. My site – builders
   have built an plug-in so the send-methods can be corresponsive with time. The
   site has several delivery options that change within time. For example: Ordered
   before 12:30 pm, the same evening delivered. And after 7 pm a few delivery options
   change.
 * The point is, when it is 12:31, the delivery option must disappear in the send-
   methodes optionlist. In most cases it worked. But not exactly at that specific
   time. It has something to do with the ‘cache’ of WordPress. In my own words; 
   the constant automatic refreshing of the website, so everything is up to date;
   like the delivery options. The printscreen below is from our website. It is in
   Dutch, but you can see the time problem we experience:
 * > [View post on imgur.com](https://imgur.com/a/PTNcm)
 * *21:31 is 09:30 PM
 * The delivery options do change, but not all the time and variably. My sitebuilders
   have tried everything, but the problem must be within the (cache) of WordPress.
 * Could you please give us feedback, suggestions and tips so we can make it work
   properly. Because of time issues (the live-going of the website this week), a
   quick response will be appreciated very much. Apologies for the hurry, but as
   you can imagine, the priority is very high for us.
 * Yours sincerely
    -  This topic was modified 8 years, 11 months ago by [hostingip](https://wordpress.org/support/users/hostingip/).
    -  This topic was modified 8 years, 11 months ago by [hostingip](https://wordpress.org/support/users/hostingip/).
    -  This topic was modified 8 years, 11 months ago by [Steven Stern (sterndata)](https://wordpress.org/support/users/sterndata/).
      Reason: fixed imgur link

Viewing 1 replies (of 1 total)

 *  Moderator [tobifjellner (Tor-Bjorn “Tobi” Fjellner)](https://wordpress.org/support/users/tobifjellner/)
 * (@tobifjellner)
 * [8 years, 11 months ago](https://wordpress.org/support/topic/cach-problem/#post-9202123)
 * If you’re using a cache solution (and I guess you really need to do that), then
   you need to find a way to invalidate the cache at these given times, to ensure
   that the cache is rebuilt.
    WordPress core in itself does not contain any cache.
   But several WordPress plugins will happily do this for you. If you’ve been using
   a one-click-install from your hosting provider, then it’s quite possible that
   they by default include some plugin for cache in the installation package. Also
   note that your hosting provider also may have some caching layer OUTSIDE of WordPress.
   It might be worth discussing this issue with them, too.
 * In some caching plugins, you may specify certain hours, at which the cache will
   become “stale”.
    It’s possible that you need to register some cron-jobs to clear
   the cache at certain times. If you don’t have access to the server’s CLI, then
   it’s possible that the only cron you may reach is wp-cron, which does NOT fire
   exactly on a given time, but rather every now and then, as a page is requested
   somewhere, will have a look whether there are any programmed cron tasks pending.
 * Good luck. Please let us know how you manage.

Viewing 1 replies (of 1 total)

The topic ‘Cache problem’ is closed to new replies.

## Tags

 * [cache](https://wordpress.org/support/topic-tag/cache/)
 * [cron](https://wordpress.org/support/topic-tag/cron/)
 * [server cache](https://wordpress.org/support/topic-tag/server-cache/)

 * In: [Developing with WordPress](https://wordpress.org/support/forum/wp-advanced/)
 * 1 reply
 * 2 participants
 * Last reply from: [tobifjellner (Tor-Bjorn “Tobi” Fjellner)](https://wordpress.org/support/users/tobifjellner/)
 * Last activity: [8 years, 11 months ago](https://wordpress.org/support/topic/cach-problem/#post-9202123)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics