In the video; Koray Tuğberk Gübür discusses the concept of "topical authority" in the realm of search engine optimization (SEO). Websites like Search Engine Journal, Ahrefs, and HubSpot are considered topical authorities because they cover overlapping subjects and cater to similar user bases. An added principle in determining topical authority is the "cost of retrieval", which implies that search engines favor sites that can address multiple queries or topics. Demoting such a site risks adversely affecting search results across several topics.
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