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W3TC breaks when active in different directories (2 posts)

  1. Marius Cheek
    Member
    Posted 2 months ago #

    I have two WordPress sites installed in different, non-nested directories:

    Root
    /sitename1
    /sitename2

    They have different domains pointing at them, and it is not a Multisite setup.
    Load times were very slow until I enabled and configured W3TC v0.9.4 on Site1 - the results were amazing! I went to Site2 and did the same, which initially seemed successful, but when I went back to the first site the load times were worse than ever. Also, revisiting Site2 showed that that too was very slow again.

    When I finally managed to get back into the Site2/wp-admin, I deactivated W3TC. Suddenly Site1 was loading like lightning again.

    W3TC now says it is enabled in 'community mode' by the way. Also, my web hosts enabled zlib.output_compression, but if that was the problem, why would the working site run perfectly until the other had W3TC active as well?

    Does anyone know what's going on? I have had a look at the root .htaccess file, and there is nothing about W3TC in there as far as I can see:

    # Begin default subdomain redirect #
    RewriteEngine on
    RewriteCond %{HTTP_HOST} ^site2.com
    RewriteRule ^(.*)$ http://www.site2.com/$1 [R=permanent,L]
    
    # End default subdomain redirect #
    # Begin cache control #
    ExpiresActive on
    ExpiresDefault "now plus 60 minutes"
    ExpiresByType text/html "now plus 60 minutes"
    <FilesMatch "\.(css|bmp|png|ico|gff|htm|html|js|jpg|jpeg|gif|gcf)$">
    FileETag MTime Size
    ExpiresDefault "now plus 60 minutes"
    </FilesMatch>
    
    # End cache control #
    
    <IfModule mod_rewrite.c>
    RewriteEngine On
    RewriteBase /
    RewriteRule ^index\.php$ - [L]
    RewriteCond %{REQUEST_FILENAME} !-f
    RewriteCond %{REQUEST_FILENAME} !-d
    RewriteRule . /index.php [L]
    </IfModule>

    I have to say I'm mystified. Any suggestions?

    https://wordpress.org/plugins/w3-total-cache/

  2. Marius Cheek
    Member
    Posted 2 months ago #

    Ok, this seems to be a lesson in not always trusting your host's tech support. They assured me that their built in web caching tool was just another level of enhancement, and that it wouldn't interfere with any plugin cache. In fact, they pretty much said that they couldn't do any work to support my speed issues if I turned it off.

    Anyway, I went ahead and turned it off, and..... wait for it...... Now both sites are running W3 Total Cache perfectly!

    I should really close this topic, I know, but can anyone tell me if I really need a .htaccess file on my root at all?

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