It only takes half a second for Google to return a search based on keywords you type in, but there’s a whole lot more happening behind the scenes to give you the results you need. Google on Monday launched a video that explains the science behind how the massive search engine actually works.

Matt Cutts, software engineer head of Google’s webspam team, details in a YouTube video how the search engine giant thoroughly scours the web on a daily basis to provide the most up-to-date results to users.
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