This site is not child-appropiate. It has sexual innuendo, swearing, violence, crude humor and potentially insulting opinions verbalized in a vulgar manner. It also has pop-up ads.
I'm on this site every day and I can assure you that it's safe in terms of viruses and the like, but it's not safe for children. The comics and animated shorts often contain crude language, nudity, sexual innuendos, blood, violence, and death; religious jokes are also a fairly common occurrence and it's also worth noting that "Cyanide & Happiness" is dark humor.
Aunque no se promueve la discriminación ni menosprecio de ninguna clase de etnia, religión, partido político o situación, hay que señalar que a menudo usan bromas acerca de temas delicados como esos, hay gente a la que le resulta chocante.... A mí me encanta xD
http://www.explosm.net/comics/2656/
http://www.explosm.net/comics/1018/
http://www.explosm.net/comics/502/