Google Search Console is Sending Warnings About Slow-Loading Pages
Search Engine Journal | October 24, 2018
Google is sending warnings to webmasters via Search Console, notifying them of slow-loading pages. First Contentful Paint: The point immediately after navigation when a browser renders pixels to the screen.Time to Interactive: The time at which a page is visually rendered and capable of reliably responding to user input.First Input Delay: The time when a user first interacts with a site, to the time when a browser is able to respond to that interaction.