Empire Market is fine and most notorious Deep Web Market right now. Being this big it faces the problem of constant Ddos attack leading essential Empire Market link to be down, and alternative URL as well. That lead that empire market need to make a lot of URL and onion mirror and mirror. And the problem is that there is not too much ways costumers can discover a legit Empire Market URLs.
That's why Empire Marketplace decided to create a special page where their users can always find active URLs and onion mirrors, for instant access to Empire Market. Here it is http://empiremarketurl.com be sure you using whenever you you have to login to darknet market empire market.