Symantec says that visiting one of these sites, without downloading or clicking on anything in particular, could put you at risk of exposing your computer to infection, and worse, put your identity, personal and financial information into the hands of cybercriminals.
Multimedia sites and adult sites also feature heavily in the list. However, the remainder of the dirtiest sites cover subjects ranging from laser engraving and gaming cheats, news sites and glove retailers.
The US hosts the majority of these ‘dirty sites’ but was closely followed by China, Germany, Canada and the UK.
Symantec said it has chosen not to publish the list due to the explicit nature of the URLs.