This is what mod_pagespeed/ngx_pagespeed does. We need many basic things and we use the Chromium libraries for that. (You could say that's because we're kind

This is what mod_pagespeed/ngx_pagespeed does. We need many basic things and we use the Chromium libraries for that. (You could say that's because we're kind of like a browser, but we don't actually use the most browser-like components of Chromium. We do need an http(s) fetcher and html/css/js parsers but the Chromium ones aren't a good fit for our usage.)