[jonydeap]

I absolutely agree with the key points mentioned on the site you've shared with us. Indeed, SEO is complex and there are several crucial aspects that we need to break down. I'd also add link building. Even though there are various opinions regarding its necessity, I know from my experience how link building can affect website rankings.
Clearly, there are many companies that charge a lot for link building. I work with a forum marketing agency, and they have quite affordable rates. Since starting working with them, my sales have grown, and my website traffic has increased significantly.