1.5 Performance & Core Web VitalsLowInferred
Unminified CSS/JS
Shipping CSS and JavaScript with all their whitespace and comments wastes bytes on every request. Minification is a free, safe win that most build tools do automatically.
What it is
Uncompressed code assets.
Why it matters
Marginal performance cost.
How to fix it
Minify in build.
How to find it on your site
- Open a CSS or JS file the page loads and check whether it is minified.
- Confirm your build step minifies production assets.
- Enable minification in the bundler or build pipeline if it is off.
- Re-check that the served files are minified.
Cross-reference to ranking and citation factors
Smaller assets load and parse faster, helping render and Core Web Vitals. The effect is small per file but adds up.
Impact
Low. Inferred.
Evidence
Minification supports better load performance. web.dev, Core Web Vitals (Google)