Main rules of the Internet

Today I was in a conversation and I wanted to refer to a very famous rule that belongs to “the main rules of the internet”, but I couldn’t remember it so that conversation went weird really fast. So after I googled it and it turns out it I was trying to refer to rule 34. I also took a serious good look at all the other rules of the internet, just to refresh my memory. If you spend serious amounts of time online than you should do the same!