HOW TOPICAL AUTHORITY SPREADS (AND WHERE IT DOESN'T) IN CHATGPT

Summary from the TLDR Marketing newsletter

Topical authority works best when brands build deep expertise in a core area before expanding. ChatGPT cited brands in 74% of closely related categories compared to 50% of distant ones, but overall brand mentions declined from 44% to 25%. Consistent coverage within a category drove stronger visibility than spreading content across unrelated topics. Brands should expand into adjacent areas gradually, as the impact of broader coverage varies by industry.