Title: Why Remove query strings from static resources?
Last modified: August 22, 2016

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# Why Remove query strings from static resources?

 *  Resolved [funsail](https://wordpress.org/support/users/funsail/)
 * (@funsail)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/why-remove-query-strings-from-static-resources/)
 * Every page checker recommends you to “Remove query strings from static resources”
 * Why does WP like to add versions to everything?
    eg /wp-content/themes/mtyem/
   css/autoinclude/common.css?ver=4.1.1
 * That ver=4.1.1 is from WP. The theme doesn’t belong to WP so I have no idea why
   WP adds stuff to destroy speed on our sites.
 * Is there a good reason for this?

Viewing 2 replies - 1 through 2 (of 2 total)

 *  [Jon (Kenshino)](https://wordpress.org/support/users/kenshino/)
 * (@kenshino)
 * Lord Jon
 * [11 years, 2 months ago](https://wordpress.org/support/topic/why-remove-query-strings-from-static-resources/#post-5848609)
 * It doesn’t affect speed. It’s simply a version marker. In actual fact, it doesn’t
   even query by version no.
 * Besides, the version maker can be removed or altered to be more accurate (eg 
   version 2.0 of mtyem theme’s css).
 * Your Theme designer/developer should have just added a more appropriate version
   no.
 * Cheers!
 *  [mjassen (mjjojo)](https://wordpress.org/support/users/mjjojo/)
 * (@mjjojo)
 * [11 years, 2 months ago](https://wordpress.org/support/topic/why-remove-query-strings-from-static-resources/#post-5848718)
 * Hi! I know this thread is marked “resolved” however I didn’t see the main question
   answered, so I wanted to follow-up with one “good reason” to do this in web development—
   is to avoid browser cache issues.
 * For example if the developer updates the .css file but its filename remains the
   same, then the browser still uses the old cached version. From experience I can
   say that from a user perspective this can make it seem like the web app is broken/
   unusable! So in theory by updating the filename of the .css file to have the 
   new version number it would tell the web browser to re-cache the file and use
   the new file.
 * To try to find out more about this, I did an internet search for something like:
   
   auto-versioning to avoid image cache issues

Viewing 2 replies - 1 through 2 (of 2 total)

The topic ‘Why Remove query strings from static resources?’ is closed to new replies.

 * In: [Fixing WordPress](https://wordpress.org/support/forum/how-to-and-troubleshooting/)
 * 2 replies
 * 3 participants
 * Last reply from: [mjassen (mjjojo)](https://wordpress.org/support/users/mjjojo/)
 * Last activity: [11 years, 2 months ago](https://wordpress.org/support/topic/why-remove-query-strings-from-static-resources/#post-5848718)
 * Status: resolved

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