4chan is described as an English-language image-board website. It is an online forum where users can post anonymously and search for specific content. Users do not have an account and so everyone can comment and even though users must be over 18, 4chan does not check this. Content which has been posted (threads) expire after a certain amount of time, usually within a few hours or days. 

There are bulletin boards dedicated to a variety of topics from Japanese animation and culture to video games, music, and photography. There are also boards for adult and NSFW (not safe for work) content. 

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