View Cached Version of a Webpage with a Click of a Button

What if you want to view a webpage but due to some reason it is down or not found.... But Google always keeps the cached version of that web page. But it becomes a cumbersome job to go and edit each and every page of a website, So here is a chrome extension which can solve this problem... This extension Creates a button in Chrome on clicking that button cached version of down webpage opens Get This Extension Here