Title: Cache preload
Last modified: October 20, 2023

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# Cache preload

 *  Resolved [chun0914](https://wordpress.org/support/users/chun0914/)
 * (@chun0914)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cache-preload-12/)
 * I’m seeking help on how to use the sitemap in Cache preload.We are using multisite,
   does it only support one sitemap URL? Could you provide a sample of the sitemap
   XML, or any suggestions on how to produce the sitemap URL automatically?
 * Addition, what is the use of “Pages per interval”?

Viewing 3 replies - 1 through 3 (of 3 total)

 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cache-preload-12/#post-17138831)
 * Hello [@chun0914](https://wordpress.org/support/users/chun0914/)
 * Thank you for reaching out and I am happy to help!
 * You can only use a single sitemap for a Cache Preload in W3 Total Cache. Most
   of the SEO plugins like Yoast create the sitemap for you by default and you can
   use this sitemap and add it to the Sitemap URL: filed.
   You can preload the pages
   for the entire multisite if the sitemap contains all URLs, however, you can also
   disable the “Use single configuration for all sites” option in Performance>General
   Settings>Miscellaneous, and use the feature for the individual websites.
 * The Pages per interval setting tells how many pages will be preloaded in the 
   set interval (default is 900s). So if you set 10 pages per interval, 10 pages
   will be preloaded every 900s
 * Thanks!
 *  Thread Starter [chun0914](https://wordpress.org/support/users/chun0914/)
 * (@chun0914)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cache-preload-12/#post-17142468)
 * Thank you. I am using the sitemap URL [https://www-uat.hkmu.edu.hk/page-sitemap.xml](https://www-uat.hkmu.edu.hk/page-sitemap.xml)
   and I’ve checked the option “Automatically prime the page cache” with an update
   interval of “10 seconds” and set “100” for “Pages per interval.” However, I’ve
   noticed that the cache folder remains empty. Could you please assist me in identifying
   what I might have configured incorrectly?
    -  This reply was modified 2 years, 7 months ago by [chun0914](https://wordpress.org/support/users/chun0914/).
 *  Plugin Contributor [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * (@vmarko)
 * [2 years, 7 months ago](https://wordpress.org/support/topic/cache-preload-12/#post-17156052)
 * Hello [@chun0914](https://wordpress.org/support/users/chun0914/)
 * Sorry for the late reply.
 * The update interval of “10 seconds” and set “100” for “Pages per interval.” means
   that the 100 pages need to be cached every 10 seconds. This is a lot for any 
   server to handle. It means that 10 pages are primed every second.
   You should 
   leave this on default and cache 10 pages every 900 seconds. This may take longer
   however, it also means that all pages will be primed. Because your configuration
   may actually hurt the performance and the cron may not fire on time.
 * Thanks!

Viewing 3 replies - 1 through 3 (of 3 total)

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

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 * 3 replies
 * 2 participants
 * Last reply from: [Marko Vasiljevic](https://wordpress.org/support/users/vmarko/)
 * Last activity: [2 years, 7 months ago](https://wordpress.org/support/topic/cache-preload-12/#post-17156052)
 * Status: resolved