SEO retainers usually cap your margins at 30% because you’re just selling...

https://www.inter-bookmarks.win/most-seo-agencies-hit-a-profit-ceiling-at-30-because-they-just-sell-labor

SEO retainers usually cap your margins at 30% because you’re just selling hours. By treating your agency like a lab to build internal tools, you can push margins past 70% and finally stop trading your time for every single dollar you make.