NSFW is Internet slang that means "not safe for work". Another similar acronym is NWS which stands for "not work safe". It is typically used on interactive discussion areas to mark URLs that may be pornographic or shocking, so that the reader can avoid content that may be objectionable to coworkers or put their job at risk where there is a company policy of scanning access logs.

NSFW has particular relevance for workplaces which have policies prohibiting (even inadvertent) access of pornographic images, because they regard the presence of these images on company property not just as a misuse of company equipment, but also as violating the company's sexual harassment policy.

See also

• Shock site