Most SEO retainers trap you at 30 percent margins because you’re selling time....

https://www.novabookmarks.win/most-seo-agencies-are-stuck-in-30-percent-margin-retainers-because-they-re-just

Most SEO retainers trap you at 30 percent margins because you’re selling time. By turning your internal workflows into a simple software product, you can push past 70 percent margins. Build a lab instead of just another agency.