http://tth4he7kdfmfwq2k7yaj2ggjdva7rdpbch42q6xgoorbabjeklyfbmyd.onion/dark-fail-useful-verified-list-of-tor-hidden-services
However, hidden services often become inactive due to a variety of reasons and it can become difficult to keep track of new sites that reemerge. Dark.fail collects and verifies working onion links for cybersecurity research purposes. These links include moderated forums, marketplaces, major news outlets, social media and mail services, cryptocurrency exchanges, VPN services, file sharing, web archives, and law enforcement resources.