10–25 sites isn't worth $129/mo of Ahrefs seats just to glance at. Track Authority Score and backlink changes across all of them, get a Monday digest, and only open a tool when something actually moved.
Append-only history per domain — real trends, not a number you re-check manually.
One email: what moved across the whole portfolio. Skip the dashboard most weeks.
Embed the Authority badge; it links back and does quiet marketing for your sites.
Free for one site, no card. Scale up only when the portfolio does.