Why does Google rank Wikipedia for so many topics?

[sinelogixtech]

Why does Google rank Wikipedia for so many topics?

[Jesica]

I think wikipedia is one of the best search engine for information based.

[varunroy]

Google ranked the page which has high traffic and information, google understands it about the webpage has value so he responds the webpage to higher ranking in search engine. So Wikipedia has right information and high traffic so google considers it valuable.