In a recent Reddit thread, Google’s John Mueller offered some tips to optimize your score on Google’s PageSpeed Insights (PSI) tool, for good SEO:
- Temporarily place individual page elements—like images, scripts, or code—on a non-indexed page to isolate and test their effect on page speed. Then, optimize and make changes to your live page.
- If your optimized live page doesn’t show improvement, other factors that you didn’t isolate are limiting your score. In this case, make a copy of the live page, remove the elements you optimized in step 1, and test.
- If page speed is reasonable already, you may not need to do extensive work. Ultimately, changes should be incremental and strategic.
Check out Search Engine Journal’s write-up for more.