Image size optimization can help to speed up a website loading time.
The chart above shows the difference between the size before and after optimization.
We found that 5% of them (2 requests) were addressed to the original uk, 54% (20 requests) were made to uk and 5% (2 requests) were made to S4.
Size : Shows the size of the HTML used on your site.
Compressed Size : This is the size of the HTML on your site once it has been compressed.
It is highly recommended that all Java Script files should be compressed and minified as it can save up to 90.0 k B or 66% of the original size.
CSS files minification is very important to reduce a web page rendering time.