Page speed
Render-blocking resources
Fewer than four render-blocking scripts or stylesheets
What we check
Fewer than four render-blocking scripts or stylesheets
Why it matters
Render-blocking files hold the page blank until they finish.
How to fix it
Defer scripts and inline the critical CSS.
How it affects your score
This check sits in Page speed, which is worth 20% of the overall score. A critical result costs the full weight of the check; a warning costs half. If we can't measure it on your page, we leave it out of the score entirely.