Sorry, this is way to broad of a generalization. Yes, "SEO" is a bit of muddied term. Yes, people target Google first. However, there are quite a bit of standar

Sorry, this is way to broad of a generalization. Yes, "SEO" is a bit of muddied term. Yes, people target Google first. However, there are quite a bit of standard practices that aren't Google specific that need to be followed. Schema.org and Sitemaps.org are great examples. Also, a serious business would be kidding themselves if they thought that targeting engines like Bing wasn't important. Reaching customers is important. With that being said, Google is the biggest player in the game. This means they can make up whatever rules they see fit. However, one of the biggest SEO "secrets" has nothing to do with Google: "Build for readability, good content that fits your targeted keywords." Again, this is a general rule, and only a starting point.