Three sites made 215,128 "best software" pages for AI. Perplexity cites them
Summary
Trellner Research analyzes how Perplexity-grounded AI recommendations rely heavily on domains outside top-ranked sites, including marketing blogs and lesser-known sources. The report identifies three sites that collectively produced 215,128 generated 'best <category>' pages, raising concerns about the provenance of AI grounding data and the potential bias introduced by automated content generators.