Title: [Plugin: W3 Total Cache] debug info
Last modified: August 19, 2016

---

# [Plugin: W3 Total Cache] debug info

 *  [sslhbala82](https://wordpress.org/support/users/sslhbala82/)
 * (@sslhbala82)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/)
 * <!– W3 Total Cache: Page cache debug info:
    Engine: disk (enhanced) Key: activity/
   _default_.html.gzip Caching: enabled Status: not cached Creation Time: 0.615s
   Header info: X-Powered-By: W3 Total Cache/0.8.5.2 Set-Cookie: bp-message-type
   =deleted; expires=Sun, 03-May-2009 12:24:53 GMT; path=/ X-Pingback: *********************
   Content-Type: text/html; charset=UTF-8 Pragma: public Expires: Mon, 03 May 2010
   13:24:54 GMT Last-Modified: Mon, 03 May 2010 12:24:54 GMT Cache-Control: max-
   age=3600, public, must-revalidate, proxy-revalidate Vary: Accept-Encoding, Cookie
   Etag: 3b280f6fc3127df00e92518a6cc515b9 Content-Encoding: gzip –>
 * db cache:
    <!– W3 Total Cache: Db cache debug info: Engine: apc Total queries:
   84 Cached queries: 0 Total query time: 0.009 –>
 * i activated cache but cache says not cached in the debug info. any help to furthut
   proceed.
 * Thanks,
    Bala
 * [http://wordpress.org/extend/plugins/w3-total-cache/](http://wordpress.org/extend/plugins/w3-total-cache/)

Viewing 6 replies - 16 through 21 (of 21 total)

[←](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/?output_format=md)
[1](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/?output_format=md)
2

 *  [null_](https://wordpress.org/support/users/null_/)
 * (@null_)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486776)
 * yes, when using disk, I get.
 * <!– W3 Total Cache: Page cache debug info:
    Engine: disk Key: w3tc_170cfab40c13563753d804f48b40a98a_page_d38dd2d9f595dc58d064c70e4f434e23_gzip
   Caching: enabled Status: cached Creation Time: 0.001s Header info: X-Powered-
   By: W3 Total Cache/0.8.5.2
 * When using disk (enhanced), I don’t see any output at all for page caching.
 *  [null_](https://wordpress.org/support/users/null_/)
 * (@null_)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486778)
 * to clarify, I still see the output telling me sql queries were cached via xcache
   in both cases, but when using disk (enahnced) for page, the page specific caching
   doesn’t display, though it does for just “disk” page caching.
 *  [moepstar](https://wordpress.org/support/users/moepstar/)
 * (@moepstar)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486793)
 * I’ve noticed the same behaviour regarding the missing disk cache info – but only
   when the cached file has been served which seems to have been created on disk
   without the info.
 * Regarding the rewrite rules for NGINX, i came up with the following ones, however
   please note that they only are partially working (the commented out minifying
   part didn’t really work for me, however i’m unsure if my theme just doesn’t really
   want to be minified or if the rewrite rule(s) are at fault):
 *     ```
       #File exists? By all means, send it!
       if (-f $request_filename) {
       break;
       }
   
       set $w3tc_file '';
       set $w3tc_uri $request_uri;
   
       #No rewriting for these
       if ($request_uri ~* "\/wp-admin\/|\/xmlrpc\.php|\/wp-(app|cron|login|register)\.php|wp-.*\.php|index\.php") {
       set $w3tc_uri '';
       }
   
       if ($request_uri ~* "wp-comments-popup\.php|wp-links-opml\.php|wp-locations\.php") {
       set $w3tc_uri '';
       }
   
       #When POSTing, do not rewrite
       if ($request_method = POST) {
       set $w3tc_uri '';
       }
   
       #Bypass cache if there's query string appended
       if ($query_string) {
       set $w3tc_uri '';
       }
   
       #Cookie exists? No rewriting for you!
       if ($http_cookie ~* "comment_author_|wp-postpass_|wordpress_\[a-f0-9\]\+|wordpress_logged_in" ) {
       set $w3tc_uri '';
       }
   
       #Are we requesting a possibly minified CSS/JS?
       #if ($request_uri ~* "^.+\.(css|js)$") {
       #rewrite ^/wp-content/w3tc/min/([a-z0-9\-_]+)\.(include(-footer)?(-nb)?)\.(css|js)$ /wp-content/w3tc/min/index.php?gg=$1&g=$2&t=$5 last;
       #}
   
       #Still in the game? Lets set our destination
       if ($w3tc_uri ~ ^(.+)$) {
       set $w3tc_file /wp-content/w3tc/pgcache/$1_default_.html;
       }
   
       #See if the file we want to request exists, then rewrite
       if (-f $document_root$w3tc_file) {
       rewrite ^(.*)$ $w3tc_file break;
       }
   
       #Everything else may be passed on to WordPress
       if (!-e $request_filename) {
       rewrite ./index.php last;
       }
       ```
   
 * The parts i’m especially unsure what they’re trying to achieve are the last two
   of the original rewrite rules:
 *     ```
       RewriteCond /var/www/belangloserscheissdreck.de/webroot/wp-content/w3tc/pgcache/$1/_default_.html%{ENV:APPEND_EXT} -f
           RewriteRule (.*) wp-content/w3tc/pgcache/$1/_default_.html%{ENV:APPEND_EXT} [L]
       ```
   
 * Maybe Frederick can shed some light into what the {ENV:APPEND_EXT} is trying 
   to achieve.
 * Also, maybe there’s someone more well versed with adapting rewrite rules to NGINX
   than me that wants to help us out a bit 😉
 *  [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486799)
 * > I still see the output telling me sql queries were cached via xcache in both
   > cases, but when using disk (enahnced) for page, the page specific caching doesn’t
   > display, though it does for just “disk” page caching.
 * Bugs I’ve found with disk enhanced and WP 3/MU will be fixed in the next release.
 * > Maybe Frederick can shed some light into what the {ENV:APPEND_EXT} is trying
   > to achieve.
 * {ENV:APPEND_EXT} is used to determine which cache file to return by suffix; gzip
   or deflate or empty string. If browser supports gzip (Accept-Encoding contains‘
   gzip’) APPEND_EXT env variable is set to ‘.gzip’. If browser supports deflate(
   Accept-Encoding contains ‘deflate’) APPEND_EXT env variable is set to ‘.deflate’.
   If browser doesnt support compression, APPEND_EXT is empty (undefined) nothing
   is appended.
 * > aybe there’s someone more well versed with adapting rewrite rules to NGINX 
   > than me that wants to help us out a bit 😉
 * Full nginx support is coming in the final release.
 *  [null_](https://wordpress.org/support/users/null_/)
 * (@null_)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486801)
 * sounds great! Any ideas on the xcache page caching potentially not working, as
   it displays Cache Enabled, but never cached?
 *  [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * (@fredericktownes)
 * [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486820)
 * It’s really hard to guess without checking out your error logs.

Viewing 6 replies - 16 through 21 (of 21 total)

[←](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/?output_format=md)
[1](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/?output_format=md)
2

The topic ‘[Plugin: W3 Total Cache] debug info’ is closed to new replies.

 * 21 replies
 * 5 participants
 * Last reply from: [Frederick Townes](https://wordpress.org/support/users/fredericktownes/)
 * Last activity: [16 years, 1 month ago](https://wordpress.org/support/topic/plugin-w3-total-cache-debug-info/page/2/#post-1486820)
 * Status: not resolved

## Topics

### Topics with no replies

### Non-support topics

### Resolved topics

### Unresolved topics

### All topics