Hi, My site http://robcubbon.com has come up rather slow according to Google Webmaster Tool Site Performance. I have installed the WP Super Cache plugin to improve this. Also, I'm not sure if I have configured the plugin correctly. On the plugin page it says: "Warning! PHP Safe Mode Enabled! You may experience problems running this plugin because SAFE MODE is enabled.Your server is set up to check the owner of PHP scripts before allowing them to read and write files." I've wrote to Support about this and they say it's set up fine. Is Safe Mode Enabled? How do I unenable it? According to this it's off http://robcubbon.com/test.php It also says : "You or an administrator may be able to make it work by changing the group owner of the plugin scripts to match that of the web server user. The group owner of the /home/user/public_html/wp-content/cache/ directory must also be changed. See the safe mode manual page for further details." home/user/public_html/wp-content/cache/ is 755, is that OK? It also says : "Mod rewrite may not be installed! It appears that mod_rewrite is not installed. Sometimes this check isn’t 100% reliable, especially if you are not using Apache. Please verify that the mod_rewrite module is loaded. It is required for serving Super Cache static files. You will still be able to use half-on mode." Mod rewrite is installed, isn't it? It also says: "Warning! /home/user/public_html/ is writable. Please make it readonly after your page is generated as this is a security risk." public_html is 750 - is that OK? wp-admin and wp-content are 755 - is that OK? According to some discussions in a Google Webmaster Group there is an .htaccess "fix" for this: # compress the files AddOutputFilterByType DEFLATE text/html text/plain text/xml text/css text/javascript application/x-javascript # removes some bugs BrowserMatch ^Mozilla/4 gzip-only-text/html BrowserMatch ^Mozilla/4\.0[678] no-gzip BrowserMatch \bMSIE !no-gzip !gzip-only-text/html Header append Vary User-Agent Does anyone have any experience of that? If anyone has any experience of speeding up WordPress (with or without WP Super Cache) or any site on Apache I would appreciate your comments. Thanks