Puppeteer script to inline above-the-fold CSS for a webpage.
Extract "above the fold styles" which are wrapped in CSS comments.
📐 Style.Tools CMS Connect client.
atf (above-the-fold) prints out above-the-fold css for whatever site you want.
PhantomJS script to inline above-the-fold CSS for a webpage.
Build critical path css asynchronously on demand
Use Chrome headless screenshots for comparing the initial rendering