1) How do I know whether a site has inserted or updated an Rss feed. Say, I am fetching Rss feed from different sites. One of the site has inserted/ updated a feed. Does it send a insert / update feed message or some kind of Acknowledgement?
2) What if the rss feed link provided is no longer available?
Say, A site has posted an rss feed with a link. After few months it has deleted that page. Does it send a message that the rss feed is deleted ?
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