previously google page speed insight used to give a link where we can download the optimized contents. now as of 19 dec 2018 i am not able to find that link because page speed insight has been updated with new features by google. if anyone know how to download the optimized images, css, javascript from google page speed insight please share your knowledge. please suggest if any other online tool available.
As google has updated their page-speed insights version, they are not providing compressed files/images, but in older version they were providing compressed images as well minified js & css files.
I have founded another solution regarding this but not at all, this not a complete solution, but you can utilise it.
Just go to https://www.sitereq.com/download-optimized-files
Pest your particular page URL there and submit
Below they will provide you compressed images and js/css files which are downloadable.
NOTE : You must have to open an account there first
Best Regards.