Empire Market is big and most notorious Onion Network Market at the time. Being this great it faces the problem of regular Ddos attack witch leads primary Empire Market URL to be down, and alternative mirror as well. That lead that empire market have to create a lot of URLs and tor links and mirror. And the thing is that there are not too much ways costumers can find a fresh Empire Marketplace mirror.
So that's why Empire Market decided to create an official webpage where their users can at any time find working URLs and onion mirrors, for quick access to Empire Market. Here it is http://empiremarketurl.com make sure you using it every time you you wish to login to darknet market empire market.