How quickly did this blog post load? Did you happen to notice? Most website visitors do notice that sort of thing, even if they don't realize it consciously. In fact, virtually all visitors have strong opinions about how quickly a website should load.
For some businesses SEO is a bad word, and for good reason. Google and other search engines keep their algorithms a well-guarded secret making SEO implementation not unlike playing a game where the referee won’t tell you all the rules.