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I'm just going to throw this out there, but Google indexes Stack Overflow really quickly…
How does Stack Overflow work so well with search engines?

Some minutes ago (less than 10) I have asked this question on Stack Overflow.

Then, waiting for an answer I have tried to do a Google search about the same argument and like magic the first link returned by Google search was my post on Stack Overflow!

How could this be possible? With the frequency that questions and answers are posted on Stack Overflow does Google continuously index the Stack Overflow site?

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migrated from stackoverflow.com Nov 14 '10 at 3:09

This question came from our site for professional and enthusiast programmers.

marked as duplicate by Grace Note, Greg Hewgill, Jon Seigel, balpha Nov 14 '10 at 6:41

This question has been asked before and already has an answer. If those answers do not fully address your question, please ask a new question.

    
Voted to move to meta. –  Andrew Barber Nov 14 '10 at 2:57
2  
While I can understand that probably the question shoul be moved to meta, I can't really understand the downvote... –  Lorenzo Nov 14 '10 at 3:01
    
old school podcast info. they designed the site to work with Google as the entry point. –  Bobby Borszich Nov 14 '10 at 3:06
    
+1 upvoted. Reads to me like "how does this internet technology work?" so i think its appropriate –  jon_darkstar Nov 14 '10 at 3:07
    
I didn't downvote on this, btw. That was someone else. –  Andrew Barber Nov 14 '10 at 3:11
    
Dupe: meta.stackexchange.com/questions/20171/… –  Tobu Nov 14 '10 at 3:23
1  
Also: meta.stackexchange.com/questions/9726/… –  Tobu Nov 14 '10 at 4:18

2 Answers 2

up vote 1 down vote accepted

They're probably sending updates to google. Take a look at google admin tools I believe.

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It also has to be a pretty big site, and seen as frequently updated. –  ceejayoz Nov 14 '10 at 3:07

Posts to my blog show up in 10 minutes or less on average - Wordpress pings various services and my blog doesn't even generate that much traffic. SO is huge, constantly updating and frequently back linked. Stands to reason it'd be indexed fast.

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