The darknet is a network of websites that can be accessed only via special software that hides the details of the user’s connection, and also allows websites to be hosted without revealing their location or operator. Today, large-scale darknet marketplaces exist for illegal drugs, firearms, hacking tools, stolen identity documents, and a wide variety of other illicit goods. The darknet has not, to date, proven to be a particularly attractive platform for the buying and selling of illegal wildlife products. Despite this, the darknet provides a 'marketplace of last resort' that becomes increasingly attractive over other, more accessible, online services as law enforcement and platform operators enforce policies against trading in illegal wildlife products. This makes the ongoing study of darknet markets an important avenue for research as other policies against online illegal wildlife trading emerge.