That's a tall order. My off the cuff answer/guess would be 'no'. That's because there are so many devices other than computers connected to the 'net - things like SCADA, sensors, etc.
Also, with the net there is a huge quantity of various configurations of machines. I would think the equivalent would just be for news organizations and websites to push a notification.
How about pinging the common browser portals? Open a new tab in the browser that is operating at the time.
Spitballin’