PageSpeed Insights (PSI) is a web performance analysis tool developed by Google to help you optimize your website.
It’s a useful tool to find optimization opportunities. It’s one of the analyzers we use in our toolbox.
It’s not a useful scoring system for Shopify sites or complex platforms that integrate with 3rd party apps.
Why we don’t use it as a benchmark/scoring system:
- Sometimes you implement an optimization that clearly makes your site faster, but then the score goes down 🧐
- Sometimes you clear warnings they give, and the score goes down
- Sometimes when comparing 2 sites, the faster site scores lower