BTDigg is the first Mainline DHT search engine for the BitTorrent network, participating in the BitTorrent DHT network, providing magnet links and partial torrent information (name, file list, size). It supports multilingual search, including English, Russian, Chinese, and Portuguese, and provides sorting options and third-party application APIs. Founded in 2011 by Nina Evseenko, BTDigg is also accessible via I2P networks and Tor. It was taken offline due to torrent spam, but has since come back online on the dot-com domain.