Why 20 Placements on Low-Traffic Sites Won't Move Rankings: What a $10,000/Month Digital PR Retainer Actually Buys
https://www.bookmark-suggest.win/editorial-link-building-vs-paid-placements-a-brutally-honest-risk-comparison
How 20 Low-Traffic Placements Produced a 0.5% Organic Lift in 12 Months The data suggests you should be suspicious when an agency reports "20 placements" as proof of success