Help me to resolve small issues

Help me to resolve following issues: This is a small and easy job but requires a good knowledge. These issues are from Google Speed test, 1. Leverage browser caching Setting an expiry date or a maximum age in the HTTP headers for static resources instructs the browser to load previously downloaded resources from local disk rather than over the network. For Images, js and css files 2. Enable compression Compressing resources with gzip or deflate can reduce the number of bytes sent over the network. (Note: Should work on IBM web sphere) 3. Eliminate render-blocking JavaScript and CSS in above-the-fold content Your page has 3 blocking script resources and 11 blocking CSS resources. This causes a delay in rendering your page. (Note: I can’t change any css and js file location)