Empire Market is huge and most popular Onion Net Marketplace at the time. Being this big has it's consequences continuous Ddos attack witch leads essential Empire Market link to be down, and alternative URLs too. That lead to empire market had to make more and more URLs and tor links and links. And the thing is that there are not many ways users can get a fresh Empire Market mirrors.
So that's why Empire Market decided to create an official page where their users can at any time discover working URLs and onion mirrors, for quick enter to Empire Market. Here it is http://empiremarketurl.online/ be sure you using it every time you need enter to darknet market empire market.