As accredited WooCommerce Expert developers, Silicon Dales offers a full WooCommerce optimization service to medium and larger Woo stores, but what do we actually do? Well, not everything in our toolbox is filed under “easy fix” but there’s a whole host of great ways you can get started on the road to a faster online store, by following the steps in this guide.
Lossless compression is when you compress (most often image) files without losing any quality at all, so that the viewer or reader of the content cannot tell that the file has been compressed.
With image files, this can mean removing support for colours which are not included in the file; or removing some image meta data from the file.
With text based files, such as HTML, JS or CSS, minification can be regarded as a form of lossless compression too, as can processes such as deflate and Gzip.
With lossless compression, there is no discernible depreciation in quality in the file itself. So with an image, the compressed file is not different to the naked eye – at all – to its larger, uncompressed, counterpart.
Also see: lossy compression.