CSS cannot be Optimized

Hi @odommo,

Thank you for contacting us.

The CSS resource shown in your screenshot is compression of CSS asset. You can click on the link itself, and it will have a handle label that shows you which asset it pertains to, so that you may optimize it and improve render blocking.

Here is a screenshot of a sample from a test site:https://snipboard.io/3ifYau.jpg

Let us know in case you have any additional questions.

Best,
Jonathan S

Hi @odommo

Your screenshot shows these are jQuery and jQuery migrate libraries.

You can try optimizing them more if you switch Asset Optimization in Hummingbird to “Manual” mode (make sure to “keep configurations” while switching) and first setting them not to be combined then trying to

– move to footer
– “load after page is loaded”.

However, be noted please that in case of these specific libraries, moving them to footer and/or deferring load may actually cause additional unexpected issues.

Personally, I would leave it “as is”. It won’t really cause that much noticeable performance issues other than possibly affecting the score itself and possible performance benefits may be way smaller than unexpected consequences.

In case of other JS/CSS assets, the best way to deal with “render-blocking” requests is, as mentioned, moving them to footer and setting to “load after page is loaded”.

Best regards,
Adam