Configure Browser Caching in w3 total cache properly

I have Website running on Wordpress, using w3 total cache for browser caching. Our homepage is dynamic as we keep adding new content to website, which is displayed on the homepage. We are facing some issues with HTML browser caching. We have a problem analysing which cache control header is best for us. Our requirement is that the content should be updated on the homepage, as well as the posts should quickly get indexed in google. As of now we have browser caching enabled and the content on homepage is quickly getting changed as soon as its updated, However the posts (New Unique Posts) are not getting indexed in Google & Bing. Instead the posts which were indexed previously are getting de-indexed. Also, when I manually go to Google Webmaster Tools and Fetch as Google the posts are getting indexed quickly. The crawl count of google bot is also less. Below are the settings of Browser Cache (HTML & XML Settings). Set Last-Modified header :- Checked Set expires header :- Checked Expires header lifetime:- 185 seconds Set cache control header :- Checked Cache Control policy :- cache with max-age ("public, max-age=EXPIRES_SECONDS") Set entity tag (ETag) :- Unchecked Set W3 Total Cache header :- Checked Enable HTTP (gzip) compression :- Checked Will be paid once the problem gets resolved and posts start getting indexed faster.