Is a widget required in MediaMetrics?

Question

Marketing

Good afternoon.
I work as a traffic manager in the media, you need to add a site to MediaMetrics, one of the conditions for adding media is to install the mediametrics widget for partners on all pages of the site. That's just looking at the sites of competitors that are in the issuance on MM, no one found this widget. This raises the question, is it necessary to add it or add and remove it in a month or two?

Answer 1

can be done as competitors
if you are sure that you have not found