Title: User Agent
Last modified: August 31, 2016

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# User Agent

 *  [MagicLen](https://wordpress.org/support/users/magiclen0810/)
 * (@magiclen0810)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/)
 * I want to decide what user-agent does make page cache and whether use the cached
   page or not.
 * [https://wordpress.org/plugins/wp-fastest-cache/](https://wordpress.org/plugins/wp-fastest-cache/)

Viewing 6 replies - 1 through 6 (of 6 total)

 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7144940)
 * do you want a feature which exclude cache by user-agent?
 *  Thread Starter [MagicLen](https://wordpress.org/support/users/magiclen0810/)
 * (@magiclen0810)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7144994)
 * Yes. But I am not sure what the ‘exclude’ means.
 * When loading a page, wp-fastest-cache will create a cache so that next time wp-
   fastest-cache can use the cache directly.
 * I want to decide the timing that wp-fastest-cache creates the cache and uses 
   the cache by user-agent.
 * Because I found that if Facebook load my page and wp-fastest-cache creates a 
   cache at this time, the cache will have some problems caused by wp-syntax. The`
   pre` area will show a hash value, not my original program code. So, I need to
   filter Facebook: If there is no cache page, wp-fastest-cache will not create 
   cache page. But if there is a cache page, wp-fastest-cache can use it.
 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7145020)
 * can you tell me the facebook user-agent please?
 *  Thread Starter [MagicLen](https://wordpress.org/support/users/magiclen0810/)
 * (@magiclen0810)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7145043)
 * I’m not sure whether the user-agent of facebook is fixed. But I think it must
   contain a ‘facebook’ string.
 * For example,
 * facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.php)
 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7145072)
 * [HTTP_USER_AGENT] => facebookexternalhit/1.1 (+http://www.facebook.com/externalhit_uatext.
   php)
 * yes, you are right. I have already decided to exclude it but I forgot 🙂 now 
   I exclude and let you know.
 *  Plugin Author [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * (@emrevona)
 * [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7145109)
 * I implemented it. If you delete and download the WPFC again, you can get the 
   latest version of WPFC. Please let me know when you complete it.

Viewing 6 replies - 1 through 6 (of 6 total)

The topic ‘User Agent’ is closed to new replies.

 * ![](https://ps.w.org/wp-fastest-cache/assets/icon-256x256.png?rev=2064586)
 * [WP Fastest Cache - WordPress Cache Plugin](https://wordpress.org/plugins/wp-fastest-cache/)
 * [Frequently Asked Questions](https://wordpress.org/plugins/wp-fastest-cache/#faq)
 * [Support Threads](https://wordpress.org/support/plugin/wp-fastest-cache/)
 * [Active Topics](https://wordpress.org/support/plugin/wp-fastest-cache/active/)
 * [Unresolved Topics](https://wordpress.org/support/plugin/wp-fastest-cache/unresolved/)
 * [Reviews](https://wordpress.org/support/plugin/wp-fastest-cache/reviews/)

 * 6 replies
 * 2 participants
 * Last reply from: [Emre Vona](https://wordpress.org/support/users/emrevona/)
 * Last activity: [10 years, 3 months ago](https://wordpress.org/support/topic/user-agent-3/#post-7145109)
 * Status: not resolved