What is an “unused” thumbnail?

  • Hi!

    I’m optimizing a website which theme (NewsMag) creates almost 24 thumbnails sizes ??

    I already reduced the thumbs to 12 by checking out which sizes are really required, but now i’m looking for a solution that helps me to reduce more disk space.

    I was thinking about deleting all sizes that I don’t use, but as is a website with almost 400k images (from thumbnails to original sizes) I’m afraid to run a bulk solution that leave some sizes out that I really need.

    At the Media library, I’m seeing some media that’s really used on a post, but appears as “unlinked” (I don’t know how the authors uploaded them). My fear is to run this kind of plugin and that it erases this images, so, my question is… what is an “unused” thumbnail to this plugin?

    Thanks!

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  • My 2 cents:
    1. It’s always a good practice to backup your website first before trying mass file operations. When things go south you can still restore everything.
    2. When cleaning up, the AST plugin will keep only the thumbnails definitely required by WordPress (small, default) and remove all those custom generated by a theme, even those that are actually used in a post (as you said linked).
    3. With the AST plugin activated:
    3.1 skip generating thumbnails when an image is uploaded.
    3.2 Regenerating: when a post is accessed, the thumbnail in it will be regenerated on the fly, and then are saved.
    4. If the AST plugin is inactivated while a thumbnail is removed, no worry, the post won’t be broken. It will get an image (e.g. the original) to show in the post, even those “unlinked” ones you said.

    In conclusion, backup your website first, activate AST, run cleanup, load a post and see if it works. You can right click an image to see its property (whether the filename carries a size suffix, e.g. -150×150).

    Please let us know your test result. Thank you!

Viewing 1 replies (of 1 total)
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