Title: Add Expired Headers
Last modified: August 21, 2016

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# Add Expired Headers

 *  Resolved [pat4040](https://wordpress.org/support/users/pat4040/)
 * (@pat4040)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/add-expired-headers/)
 * Hi, I’ve been testing my site speed with Yslow and am getting an Add Expired 
   Headers warning for the below file. It’s expiration date is set to 1984/01/10.
   Any suggestions?
 * `http://www.my-domain.com/wp-admin/admin-ajax.php?action=wordfence_logHuman&hid
   =xxxxxxx`
 * [https://wordpress.org/plugins/wordfence/](https://wordpress.org/plugins/wordfence/)

Viewing 1 replies (of 1 total)

 *  Plugin Author [Mark Maunder](https://wordpress.org/support/users/mmaunder/)
 * (@mmaunder)
 * [12 years, 1 month ago](https://wordpress.org/support/topic/add-expired-headers/#post-4799356)
 * This is used for the live traffic part of Wordfence to differentiate between 
   humans and robots. We send an expires header in the past to make sure it isn’t
   cached. This is a fairly common way to work around being cached. Not sure why
   you’re getting an alert about this.
 * Regards,
 * Mark.

Viewing 1 replies (of 1 total)

The topic ‘Add Expired Headers’ is closed to new replies.

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 * 1 reply
 * 2 participants
 * Last reply from: [Mark Maunder](https://wordpress.org/support/users/mmaunder/)
 * Last activity: [12 years, 1 month ago](https://wordpress.org/support/topic/add-expired-headers/#post-4799356)
 * Status: resolved