How to Add Expires Headers To WordPress Website through W3 Total Cache

Hello @fahadurrehmankhan1

Thank you for your inquiry and I am happy to assist you with this.
You can set expires header by going to Performance>Browser Cache and enable the option Set expires heard in General sub-box. You can also set expires header for separate types of files by scorlong down and enabling them in HTML&XML, CSS&JS or Media & other files sub box.
Thanks!

I have enabled it, but i can still see it in Yslow: https://gtmetrix.com/reports/theislamicinformation.com/ScmVmxCt

Hello @fahadurrehmankhan1

Thank you for the information. What you are referring to are external resources. As those resources are coming from the server other than yours, W3 Total Cache or any other plugin by that matter cannot handle those and add expires header.
This is also the case for the “Defer parsing of JavaScript”.
The only solution is to host these files on your server.
Thanks!