Errors that won’t go away – Parallelize, Combine Javascript & Query Strings

  • Hi,

    I have the following results showing when I test my site on Pingdom:

    F 0 Parallelize downloads across hostnames
    F 39 Combine external JavaScript
    C 74 Remove query strings from static resources

    I have looked and researched, but have no idea how to improve these within the settings of W3 Total Cache. Any advice or guidance would be much appreciated!

    T23

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  • To parallelize downloads across hostnames, you’ll need to set up multiple subdomains on your site or use a CDN such as KeyCDN, MaxCDN, Amazon Cloudfront, etc. Note that W3TC’s CDN option only supports a single hostname, but if you use a CDN that serves files via HTTP/2 then the need to parallelize across hostnames is no longer an issue (because HTTP/2 parallelizes downloads by default).

    To combine external JavaScript, enable the Minify option in W3TC. This will have the side effect of removing query strings from static resources that you’ve chosen to minify & combine.

    If you want to remove query strings from other assets, uncheck “Prevent caching of objects after settings change”:

    Screenshot

    Thread Starter tekton23

    (@tekton23)

    Thanks for your reply. I have a CDN installed and running. Both the CDN settings and Minify are already enabled in W3TC. Also the ‘Prevent caching of objects after settings change’ was also already unchecked.

    I have discovered that I do have a child theme installed. I wonder if this is causing those remaining issues, as I believe W3TC can only deal with one theme.

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