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i have searched on the web for a book or course that is in depth about the teaching that the TOP marketers use to reverse engineer super successful websites and their competitors so that they can repeat that success in their chosen niche. Are there any DETAILED courses or up to date information on how to reverse engineer online businesses/websites? where do i go to learn this? thanks

use seo spyglass to find out their linking strategy and also use ahrefs . once you have complete backlink data try to replicate it .