Title: wp-super-cache – missing mod_headers error
Last modified: August 19, 2016

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# wp-super-cache – missing mod_headers error

 *  Resolved [Pat](https://wordpress.org/support/users/patrix/)
 * (@patrix)
 * [17 years, 3 months ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/)
 * Everything seems to be working fine but I’m getting the following msg on the 
   settings page:
 * > Missing Apache Modules
   > The following Apache modules are missing. The plugin will work without them
   > but your visitors may see corrupted pages or out of date content.
   > mod_headers – Required to set caching information on supercache pages. IE7 
   > users will see old pages without this module.
 * What modules are these and where do I get them? How and where do I install them?

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

 *  [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [17 years, 3 months ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001552)
 * You should talk to your admin or check /etc/apache2/ if you have root access 
   to your server. On Debian boxes you should look in /etc/apache2/mods-available/
   and mods-enabled/
 * Not sure about other systems but searching using Google should answer your question.
 *  Thread Starter [Pat](https://wordpress.org/support/users/patrix/)
 * (@patrix)
 * [17 years, 3 months ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001638)
 * Thanks. I don’t have root access to the server so I’ve forwarded your message
   to my hosting provider.
 * **UPDATE:** Unfortunately, since I host my blog on a shared-server. I can’t make
   the changes. I got the following message from the tech support guys:
 * > I am sorry but we cannot change the server configurations as we maintain a 
   > standard prep across all our shared hosting servers. Custom modules can be 
   > implemented only on dedicated server solutions
 * BTW I use Total Choice Hosting for my hosting needs.
 *  [michael5628](https://wordpress.org/support/users/michael5628/)
 * (@michael5628)
 * [17 years, 3 months ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001666)
 * I am using QNAP-639 and also have this message in the WP Super Cache setting 
   page. I can not find the mod_headers either. How can I resolve this problem ?
 *  [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [17 years, 3 months ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001669)
 * Change to half-on mode and don’t worry about it. mod_headers is only required
   for serving static cache files. You won’t notice any difference unless your blog
   makes it to the front page of digg for some ridiculously popular post (which 
   is unlikely, unfortunately!)
 *  [reverbstudios](https://wordpress.org/support/users/reverbstudios/)
 * (@reverbstudios)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001694)
 * Thanks for that info Donncha, very helpful but I have root access to my Debian
   server and still can’t find either of those modules or how to turn them on!?
 *  [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [17 years, 1 month ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001695)
 * Glad you got it working – [http://twitter.com/reverbstudios/statuses/1529319972](http://twitter.com/reverbstudios/statuses/1529319972)
   🙂

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

The topic ‘wp-super-cache – missing mod_headers error’ is closed to new replies.

## Tags

 * [apache](https://wordpress.org/support/topic-tag/apache/)
 * [mod_headers](https://wordpress.org/support/topic-tag/mod_headers/)

 * 6 replies
 * 4 participants
 * Last reply from: [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * Last activity: [17 years, 1 month ago](https://wordpress.org/support/topic/wp-super-cache-missing-mod_headers-error/#post-1001695)
 * Status: resolved

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