Welcome to the Q&A Forum

If you haven't already, be sure to check the Mozscape API updates page, here: https://moz.com/products/api/updates. As one went live the day before this post. I'd second what Gaston says about advising against this (and similar metrics) as a KPI.

Hi, I thought as much! Thanks for that, we are actually redesigning these Alerts at the moment and each page will be specific with different content. It sounds like there is going to be nothing i can do about the historical content without working my way through it!

So glad that helped!