I had tried everything to get W3 Total Cache to make a difference with my shared-hosted WP blog, but I kept getting no improvement. I finally followed the tutorial here:
http://gtmetrix.com/wordpress-optimization-guide.html
My blog page went from 78/69 to 100/100. I was amazed. I went from a 3.63 second page load time to a 0.35 second page load time.
Unfortunately, my page no longer loads anything at all in Chrome, Firefox, and IE now. I thought everything was working fine until I cleared the browser cache in each of the three browsers. When I refreshed the page in each browser, it came back blank.
At first I thought it might be an issue with the Smush.it plugin since I installed it along with W3 Total Cache plugin as instructed in the above page optimization guide. The Smush.it plugin doesn't seem to be the problem, though.
If someone could please look at the page optimization guide I followed and see if there's anything that would have caused my page not to load, I would appreciate it. I am using CloudFlare and set it up properly in the W3 Total Cache settings.
I performed a compatibility check and there are the results:
Server Modules & Resources:
Plugin Version: 0.9.2.11
PHP Version: 5.3.17;
Web Server: Apache
FTP functions: Installed (required for Self-hosted (FTP) CDN support)
Multibyte String support: Installed (required for Rackspace Cloud Files support)
cURL extension: Installed (required for Amazon S3, Amazon CloudFront, Rackspace CloudFiles support)
zlib extension: Installed (required for compression support)
Opcode cache: Not installed
Memcache extension: Not installed
HTML Tidy extension: Installed (required for HTML Tidy minifier suppport)
Mime type detection: Not installed (required for CDN support)
Hash function: Installed (hash) (required for NetDNA / MaxCDN CDN purge support)
Safe mode: Off
Open basedir: Off
zlib output compression: Off
set_time_limit: Available
mod_deflate: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_env: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_expires: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_headers: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_mime: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_rewrite: Not detected (required for disk enhanced Page Cache and Browser Cache)
mod_setenvif: Not detected (required for disk enhanced Page Cache and Browser Cache)
Additional modules
New Relic
PHP version: Supported
Operating System: Supported
Web Server: Not Supported. Apache 0.0 See NewRelic requirements page.
WordPress Resources
/home/dappledt/public_html/.htaccess: OK
/home/dappledt/public_html/wp-content: OK
/home/dappledt/public_html/wp-content/uploads/2013/06: OK
Fancy permalinks: /%postname%/
WP_CACHE define: Defined (true)
URL rewrite: Enabled
Network mode: No
If someone could help me, I would really appreciate it. I've tried everything I can think of. Thanks.