W3 Total Cache
Image Compression (5 posts)

  1. Martin
    Posted 2 years ago #

    When I test my website on http://www.webpagetest.org/ I used to get image compression, but after the latest update from W3 Total Cache, the results from http://www.webpagetest.org/ are not showing image compression.

    Anyone else have seem this problem?
    Is there a new configuration under W3 Total Cache to compress images?


  2. Frederick Townes
    Plugin Author

    Posted 2 years ago #

    Can you be more specific about what changed and in which case?

  3. Martin
    Posted 2 years ago #

    Are you familiar with Web Page Test?

    When I test my page on a Chrome or Firefox browser, there is no image compression. I verify this by going to "Performance Review" and looking the column "Compress Img".
    There is nothing checked.

    However, if I do the same test on IE browser, then I see image compression.
    I believe the previous version of W3 Total Cache, I was getting compression when testing with Chrome browser.

  4. vanhims
    Posted 1 year ago #

    Hey Martin,

    Same thing here! Today spend a whole day on fine tuning my website custom IT.

    I went from a google page speed score of 58% for desktop to 80% after tuning everything. Especially the Minify option was great.


    One thing remaining is the "Image Compression". Sad that this function isn't being fixed by the W3TC plugin. I suggest we should fined another plugin? Although is it rly worth saving a couple of kB's?

  5. avalanch
    Posted 1 year ago #

    I'll share with you some ways to do this via my original vbulletin.org article.

    This covers the following PageSpeed Rules:

    Optimize Images

    If you have access to Visual Studio 2010 (http://www.microsoft.com/visualstudio/en-us/try) grab the trial edition here[/URL] which should be compatible with the addon), you can complete this step in just a few clicks using this addon

    You can also use pnggauntlet which will compress images as well.

    This is great to use on new skins/themes and also non animated gifs for Smileys, Signatures, Photo Album & Group Images and Avatars that your forum stores on your server!

    Please note that both of these methods produce lossless images, meaning that even though it uses various methods to decrease file size there is absolutely no visual loss in quality of the image.

    For non-windows users, I suggest Imageoptim &

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