Report use percentage

[theKashey]

Sometimes, by fact quite often, almost all styles might be inlined. And then the "real" file would be downloaded, doubling the traffic.

So, what about

• reporting used coverage
• and if it is above some threshold (80%) - inline the rest
• and somehow report that the original file might be downloaded in a low priority

[zeppelinen]

Yup. I am testing used-styles on our project and efficiency looks pretty bad.
Coverage shows less than 50% efficiency.

[theKashey]

@zeppelinen - could you elaborate a bit? What does mean "coverage" in your case? "used" is > 50% of a whole CSS?
Then it's all about the speed of your backend - if 16ms you can save my inlining styles matters for you - then it's worth. In another case it might not.