Not safe for work (NSFW) is Internet slang or shorthand used to mark links to content, videos, or website pages the viewer may not wish to be seen viewing in a public, formal, or controlled environment. The marked content may contain graphic violence, pornography, profanity, nudity, slurs, or other potentially disturbing subject matter. Environments that may be problematic include workplaces, schools, and family settings.[1][2] NSFW has particular relevance for people trying to make personal use of the Internet at workplaces or schools that have policies prohibiting access to sexual and graphic subject matter.[3] Conversely, safe for work (SFW) is used for links that do not contain such material,[4] especially where the title might otherwise lead people to think that the content is NSFW.[5]
The similar expression not safe for life (NSFL) is also used,[6][7][8] referring to content which is so nauseating or disturbing that it might be emotionally scarring to view. Links marked NSFL may contain fetish pornography, gore, or murder.[9]
Some websites, such as Reddit and OnlyFans, give users the option to designate their content as NSFW in order to warn others of its inappropriate nature.[10]
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