I think that this is the wrong way for most websites to do CSS, as it contradicts both minimization+concatenation and HTTP2 best practices. If you have just one CSS file that&#x27;s heavily cached and 100 KB (because you base64ed your webfonts to reduce request count), you should be fine.<p>Just last night, I tested trying to separate out my fonts from my CSS. Google Pagespeed Insights still threw a fit over no async CSS, even though the CSS was 5 KB. FFS, Goog! I decided against that madness.