In fact, Moz has a popular article on this subject: How to Achieve 100/100 with the Google Page Speed Test Tool. I want to make three points: I’m writing with SEO practitioners in mind. You should walk away with enough perspective to start asking the right questions.
And depending on how your site is designed, some may be more impactful than others.The story so far has been that Page Speed Insights can be useful, but there are smarter ways to assess and improve site speed. If you’re interested in learning more, I highly recommend checking out Ilya Grigorik’s site and specifically this old-but-good introduction deck.Grigorik is a web performance engineer at Google and a very good communicator about site speed issues.The first three are independent of file size; they are effectively constant costs.These costs are incurred with each request regardless of whether the payload is a tiny, minified CSS file or a huge uncompressed image.For instance, it takes light about 40ms for a round trip between Paris and New York.