Yes it's true. Onpage optimization for web pages is extremely important, it does not just affect the people search Web pages you do not want to, not only affects each Conversion Rate Search from becoming customers, it there are other very positive meaning that you will be a professional brand in the consumer's mind, and with its own Google SEO, you will be a lot more favorable ratio CTR (clicks on) the rise, keeping customers long rows with your Website bounce rate (bounce rate) low ranking will also increase.