Welcome to the Q&A Forum

That will be 'Total linking domains' . It's the number of different sites that are linking to yours. The second one that otherwise would be used is the sum of the two external links (follow/nofollow). That's the number that you'd get if you take the number of links from every individual name.

Hi there, I'm not sure you will get a recommendation here but it might be worth reaching out to some of the fine companies here: https://moz.com/community/recommended Good luck in your agency hunt! Best regards, Nick