Empire Market is late, new and expanding for the hights of tor network markets on the tor.
It takes almoust all of it's fundamental features from now Alphabay. And calls itself a beneficiary of it.
The validity of It's links can be verified by using the onion market’s own link-verifier webpage http://empiremarket-url.com/.
If URL links are not working, here is the alternaive URL where you can discover active darknet market mirrors http://empiremarket-url.com/