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I don't think they can - iirc the hash isn't sent to the server, so to it this looks like any other normal query.

• lucb1e 10y ago
  Well sure they can, how do you think the search results for "alice" are obtained? It gets sent to the server, just not upon first load but using Javascript. This Javascript could check for another query being present in the query string, or (less reliably) the server could in the referrer.
  • baby 10y ago
    the server doesn't have access to anything following the hashtag. This is only accessible on the client side via javascript. Javascript that you do not have unless the browser send the first request.
    • lucb1e 10y ago
      That's what I said: > how do you think the search results for "alice" are obtained? It gets sent to the server, just not upon first load but using Javascript.
  • qeternity 10y ago
    Where do you think the initial js comes from? The "wonderland" query.
    • lucb1e 10y ago
      I know but the comment I was responding to said Google couldn't possibly know about the duplicate parameter. Well, here you have it, they can. Not at first, but still before displaying the results.
  • comboy 10y ago
    Why all the downvotes? I think he means that it could prevent the alice query, not the wonderland.