If you read the “What is a Search Engine Anyway?” lesson, you’ll realize how important it is to make sure your tactics are aligned with Google’s end goal. That’s the only way to future-proof your SEO.
PageSpeed is a perfect example of that.
Google’s end goal is to provide the best answer to its users as quickly as possible.
If it takes 10 seconds to load your site and only 5 to load someone else’s, Google is going to pick the other one every time if all other factors are the same.
To learn more about PageSpeed (how to properly and improperly implement, as well as how to find it on your site), signup for SEO Pro here