Every check ยท Loading
Blocking scripts
What it checks
Scripts in the head without async, defer or type="module".
Why it matters
The browser draws nothing until each has loaded and run.
How to fix it
- Add defer to each script in the head, or async where the order it runs in doesn't matter.
<script src="/app.js" defer></script>Check a site for this and everything else: snag.page. More on loading: Compression Image dimensions Lazy images Page weight Redirects Script caching