rss feed and Search engine optimization alert

[soumyarani]

//may this is duplicate

i am using rss feed for my website,the rss feed is create from php and mysql dynamically;

i read that rss feed is help in indexing;

now, my question is how i know that search engine is indexed my pages using my rss feed so i only include new content in next rss feed;

 

[Dealspur]

I think every website have rss feed and it's indexed by google automatically.