How its done that when I publish some post on stackoverflow.com, it at once becomes visible in google search?

Like this http://www.google.ru/search?q=fill+body+with+images&ie=utf-8&oe=utf-8

  • Questions about the site itself belong on meta. Also, this particular question has been discussed earlier (on meta or in SO blog); I'm sure someone finds a link to that soon.
    – Jonik
    Commented Sep 10, 2010 at 20:43

3 Answers 3


The reason that your question shows up so quickly on Google is because Google's crawlers knows SO is a high-traffic site, so it keeps its eyes on the site more often, so-to-speak. It works that way for any major, high-content website. As the content produced scales up, and changes happen more often, Google indexes it more often.

  • 1
    Also, Google probably knows that StackOverflow.com has high-quality, keyword-rich, relevant content. So it gets indexed more frequently than other sites with less relevant content. Commented Sep 10, 2010 at 21:06
  • 1
    this can easily turn into a SEO tips post :)
    – RobertPitt
    Commented Sep 10, 2010 at 21:16
  • 3
    Yeah, except the SEO tips here are not the kind that the SEO bottom-feeders are looking for. The moral of the story here is: Create content people find useful.
    – pkaeding
    Commented Sep 10, 2010 at 22:02

It's because SO has a sitemap (not accessible to normal users, there is an IP check), so google can instantly know what pages have changed and what pages have been added.


It doesn't.

  • 12
    And now it does ;) Commented Sep 10, 2010 at 20:50

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