What's this class?
- This class can be used to find your website rank for a specific keyword in google search.
License:
	This program is free software; you can redistribute it and/or
	modify it under the terms of the GNU Library General Public
	License as published by the Free Software Foundation; either
	version 2 of the License, or (at your option) any later version.
Structure:
	Class name: RankChecker (int $StartPage, int $EndPage)
	
	Methods: (All methods are static)
		1- find - parameters: (string $domainName, string $keyword)
			returns an array with 2 keys: ("url", "page"). 
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