Facebook is monitoring videos you watch

Facebook has yet again tinkered with its news feed algorithm -- this time to show you more videos similar to ones you expand to full-screen, un-mute or opt to watch in HD.

Facebook would take it for granted that you loved that particular video, even if you do not like, share or comment.

Those same signals will tell Facebook that a video is enjoyable so the News Feed shows it to more people, TechCrunch reported.

The more Facebook understands which videos are great and which are boring to which people, the faster it will grow its view count, which has already reached four billion per day. That is enormous growth considering it was at one billion per day in September.

Just a few weeks ago, Facebook's algorithm started factoring in how long you linger looking at posts and videos. Together with the new change, just pumping video content into Facebook won't get you very far.

Clips must be visually tantalising from their first second, and vivid even when silent as that is how they play unless you click.

The update comes just after Facebook overhauled its video analytics offering for Pages.

Instead of having to export data to Excel, Page admins now have a dashboard to track views of all videos they have shared, measure auto-plays versus click-to-plays, compare time periods, and see their top videos by performance so they know what to share more of.