So, Google declares to index more than 8 billion pages. Have a look at the Google’s homepage:

Bill Coughran, VP Engineering at Google, posted on this subject:

You probably never notice the large number that appears in tiny type at the bottom of the Google home page, but I do. It’s a measure of how many pages we have in our index and gives an indication of how broadly we search to find the information you’re looking for. Today that number nearly doubled to more than 8 billion pages. That made me smile.

Comprehensiveness is not the only important factor in evaluating a search engine, but it’s invaluable for queries that only return a few results.

Now, another interesting thing: you know that one of the best way to test the Google’s index is to search the word “the”. I did that yesterday and Google showed more than 9.5 billion pages:

I did the same search for about 10 minutes and it seems that Google corrected the number of pages returned by this well-known query…It’s now exactly 8 billion!!