Will the WordPress plugins work on localhost?
Unfortunately, both ShortPixel Adaptive Images and ShortPixel Image Optimizer only work on publicly accessible websites. If your website is hosted locally or is not publicly accessible, you can not use our plugins to optimize your images. This rule also applies to intranet-hosted websites, which are not publicly accessible either.
If you wish to test our plugins and see how they work, you can use a WordPress sandbox system like this one.