Block search results on your site from being Indexed by Google

Wow .. i just read this today regarding the search results getting indexed by search engine (in this case Google), because now Google gives you a warning about making your search results page from getting indexed by Googlebot

Here’s what Vanessa Fox from Google said about this – link :

Typically, web search results don't add value to users, and since our core goal is to provide the best search results possible, we generally exclude search results from our web search index. (Not all URLs that contains things like "/results" or "/search" are search results, of course.)

Other than that, Matt Cutts also suggest you to use robots.txt to block search engine from indexing your search results, and here’s what he said about this :

Use robots.txt to prevent crawling of search results pages or other auto-generated pages that don't add much value for users coming from search engines

And because of this issue, Google also updated their quality guidelines page

Thanks to Danny Sullivan for posting about this matter, because i’ll never know about this issue if he’s not posting it on his blog