Kickass had ruled torrenting for torrent files. Kat, was a name that had become synonymous with torrent sites. The site debuted in 2008 and quickly soared to the position of best torrent site.
It wasn't long before the popularity of the site attracted unwanted attention, specifically from legal authorities and the government. After countless violations and overly oppressive government warrants, the owners shut the site down.
This is 100% true that it is no longer around; however, you can still find proxy's and mirror sites of kickass. All those sites contain the same content that was on kickass. You need to notice, a lot of proxy sites exist for kickass.