This document was created to help Korean Framer users who struggle with the lack of Korean resources by translating the official blog content into Korean and adding practical information. We hope it provides some help to those using Framer.

What is PageSpeed Insights (PSI)?

PageSpeed Insights (PSI or Lighthouse) is a simple tool to measure site performance. However, it does not affect SEO. Therefore, you don't need to put much effort into simply increasing the PSI score.

Is it necessary to optimize PSI?

The first thing to know is that as mentioned earlier, the PSI score does not directly affect SEO. (Source1 / Source2) According to Google's official stance, what impacts SEO is Core Web Vitals.

The difference between the two metrics lies in their testing methods.

While PSI measures performance on a simulated slow Android device, Core Web Vitals are measured based on actual visitor data. Therefore, even if Core Web Vitals are excellent, the PSI score may be low, and in this case, you can disregard the PSI score.

To check actual SEO performance, see the Core Web Vitals data in Google Search Console.

PSI precautions

1. Understand that PSI is an inaccurate performance measurement tool

The PSI score is not an absolute number but rather an approximate figure. As a result, sometimes the score could worsen even after improving the site's speed. Google even has a detailed report on this issue, so it's good to know that PSI is not entirely accurate as a performance measurement tool.

2. Don't blindly trust PSI's recommendations

While PSI's optimization suggestions can be helpful as ideas, they don't necessarily improve site speed or increase the PageSpeed Insights score in reality. Therefore, we recommend using PSI's suggestions for reference only, and reading these case examples.

Tips when using PSI

There are several points that are good to know when using PSI.

1. Run multiple tests

PSI scores can vary significantly with each test, sometimes by as much as 15 points. For the most realistic average value, it is recommended to run at least three tests and base your judgment on the median (or average) value.

PSI might display the same results if you retest the same page immediately after testing. To avoid this and omit the waiting time between tests, try adding query parameters like ?1234 to the end of the URL. (Example: my-site.com/my-page/?1234)

2. Follow Framer performance optimization best practices

Focus on optimizing your site using Framer's performance optimization examples. Utilize tips to optimize images, fonts, and other elements to suit Framer's site.

Additionally, ensure the site is fully optimized with no warnings when publishing. Doing so will enhance the user experience and help with SEO.

If issues persist even after following these steps, seek additional help through the contact page.

This post is a translated and adapted version of Framer's official blog content on 'How to optimize the PageSpeed Insights score'.