Topical Depth
Topical depth is the measure of how comprehensively and exhaustively an individual webpage covers a specific subject, rather than just the sheer number of words it contains. Search engines use semantic analysis to determine if a page addresses all the related entities and questions a user expects to find. A 500-word article that directly and thoroughly answers a complex query possesses more topical depth than a rambling 3,000-word article filled with fluff. Achieving true topical depth requires engineering pages that satisfy every possible layer of the user’s search intent, leaving them with no reason to click back to the SERP.
Topical Depth Simplified
Topical depth is a measure of how thoroughly an article answers a user’s question. Instead of just writing a lot of words to make an article look long, deep content actually provides all the details, facts, and answers the reader needs without them having to search anywhere else.