You can use almost any web traffic services to track the traffic of your newsroom. Here's an example of using integrating Google Analytics.
Step 1: Getting the tracking code
Get the Google analytics tracking code. Google has a great getting started guide here if you're not familiar with it: https://support.google.com/analytics/answer/1008015?hl=en&ref_topic=3544906.
Step 2: Integrating the tracking code
Please go to your newsroom admin page > Settings > Code injection.
Past the tracking code you got from Step 1 in to the Site Header box.
Click the Save button and it's done. You can now start monitoring your newsroom traffic.
To verify if the integration is working properly, you can now open your newsroom in a browser tab and go to Google Analytics > Realtime in another tab to see if you can see any visitors on your newsroom. If you can see at least one visitor, then it should be working properly.