Title: Content Encoding Error with GTMetrix
Last modified: December 6, 2017

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# Content Encoding Error with GTMetrix

 *  [sedelstein](https://wordpress.org/support/users/sedelstein/)
 * (@sedelstein)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/content-encoding-error-with-gtmetrix/)
 * I’ve been using GTMetrix.com to analyze my site for quite some time. Recently,
   I started getting the following error in GTMetrix:
 * Analysis Error
    Error loading page: Content Encoding Error (net::ERR_CONTENT_DECODING_FAILED)
 * I’ve been able to isolate the problem to WP Super Cache. When caching is Off 
   GTMetrix can analyze the site. With it on the error occurs. I’ve tried clearing
   the cache and that does not help.
 * Other than the GTMetrix problem, caching does seem to work when it’s on, my pages
   load noticeably faster. But I would also like to use the GTMetrix to measure 
   my site.
 * Again, something changed because it used to work. I’d appreciate any ideas on
   how to resolve this so that GMetrix works with WP Super Cache.
 * Thanks.

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

 *  Plugin Author [Donncha O Caoimh (a11n)](https://wordpress.org/support/users/donncha/)
 * (@donncha)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/content-encoding-error-with-gtmetrix/#post-9759590)
 * Can you disable compression while testing with GTMetrix?
 *  Thread Starter [sedelstein](https://wordpress.org/support/users/sedelstein/)
 * (@sedelstein)
 * [8 years, 6 months ago](https://wordpress.org/support/topic/content-encoding-error-with-gtmetrix/#post-9761288)
 * I disabled “Compress pages” and that allows GTMetrix to run but the pages load
   slower.Also, as you saw in my other post, compression causes problems in at least
   Chrome on the PC. I have used WP Super Cache for over a year and it’s worked 
   fine until recently. Do you know if something has changed that would cause this?
   Would it be worthwhile to uninstall the plugin and re-install?

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

The topic ‘Content Encoding Error with GTMetrix’ is closed to new replies.

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 * 2 replies
 * 2 participants
 * Last reply from: [sedelstein](https://wordpress.org/support/users/sedelstein/)
 * Last activity: [8 years, 6 months ago](https://wordpress.org/support/topic/content-encoding-error-with-gtmetrix/#post-9761288)
 * Status: not resolved