Imagify is a WordPress plugin that is described as the ‘Definitive WordPress Plugin to Compress Your Images’
I used it to compress this image of a guinea pig.
Imagify has three levels of compression – Normal, Aggressive and Ultra. I don’t recall whether I used Aggressive or Ultra.
After I tested it I used it to compress all the images on another self-hosted WordPress site.
Can you tell which is the original and which is the compressed image?