: Stack overflow like SEO - How is it done? Possible Duplicate: StackOverflow and Google search this is a question purely for learning purpose. I have noticed that this site has an

@Megan663

I think you're misunderstanding, to a certain extent, why Google indexes a site like StackOverflow so aggressively: It's not due so much to things the site is doing, but rather it's in Google's interest to spend time/money/resources as it's such a popular site!

There are things you can do to improve the searchability of your site, but google will only "use" those things, and expend precious crawling resources, if your site is deemed "important" based on the number of links to it, freshness of content, etc.

That said, those things that you can do include:


Having other (reliable/reputable) sites link to you, obviously - that's probably the most important thing that determines how much effort the google crawler will spend on you
Having a lot of content, and ensuring that Google always knows not to index duplicate content (use Google Webmaster Tools to tell it about duplicate versions of the same content, otherwise you get penalized)
Having "homepages" that change / illustrate new content as it comes up, and making sure that those are referenced in your site map: this is almost certainly how new questions appear so quickly in google results for stackoveflow - google knows where to look for them, and has an incentive to do so due to the popularity of the site.

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