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Performance check

Text assets are compressed

Text responses are served with gzip or Brotli.

medium severityperf.compression

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Runs just this check in quick mode. The report opens with the evidence and the fix.

Why it matters

Compression cuts the bytes on the wire by roughly three quarters for HTML, CSS and JavaScript. It is the cheapest speed win there is.

How to fix it

Enable Brotli or gzip compression for text responses at the CDN or the origin.

The details

Category
Performance
Severity of a failure
medium
Confidence
high
Needs a browser
No
Check id
perf.compression

References

Free tools that run this check

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