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Critical CSS

(critical-css-extractor.kigo.studio)
234 points stevenpotts | 1 comments | 06 May 25 03:13 UTC | HN request time: 0.427s | source
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defied ◴[07 May 25 13:07 UTC] No.43915131[source]▶
We created this as a free tool a while back on TestingBot: https://testingbot.com/free-online-tools/critical-css-genera....

It uses a remote browser to start a Puppeteer session and runs JavaScript code to extract the critical CSS needed for above-the-fold content. We chose Puppeteer because it’s fast to instrument the browser and works well even on JavaScript-heavy sites.

replies(1): >>43920141 #
1. stevenpotts ◴[07 May 25 20:13 UTC] No.43920141[source]▶
I will test it out, didn't find it!