Performance check
Static assets are cached
Static assets carry an effective Cache-Control header.
low severityperf.caching
Run this check on your site
Runs just this check in quick mode. The report opens with the evidence and the fix.
Why it matters
A visitor who comes back should not download the same files again. Long lived cache headers turn repeat visits into a near instant page.
How to fix it
Give fingerprinted assets a long max-age, for example one year, and revalidate HTML with a short max-age or ETag.
The details
- Category
- Performance
- Severity of a failure
- low
- Confidence
- medium
- Needs a browser
- No
- Check id
- perf.caching