How Google Pagespeed works: Improve Your Score and Search Engine Ranking
Ben shares the secret of SEO. Spoiler: the villain turns out to be Too Much JavaScript. Again.
Time to Interactive (TTI) is the most impactful metric to your performance score.
Therefore, to receive a high PageSpeed score, you will need a speedy TTI measurement.
At a high level, there are two significant factors that hugely influence TTI:
- The amount of JavaScript delivered to the page
- The run time of JavaScript tasks on the main thread
