Why Experienced SEO Managers and Agency Owners Stall Despite $5k+/Month Link-Building Budgets
https://www.bookmarkidea.win/how-can-google-trends-break-link-building-plateaus-for-teams-spending-5k-month
First, a quick clarification: I assume "v" refers to search visibility - page and site visibility in organic results. If you meant a different "v" (velocity, value, volume), say so and I will refocus