LTK, TikTok and YouTube make creator signals part of shopping infrastructure
LTK has folded vetted creator recommendations into AI search, TikTok uses AI to rank creator and UGC candidates using campaign and performance signals, and YouTube says 1.3 million creators now participate in its Shopping Affiliate Program as it expands to 35 countries. The platforms' own metrics show creator identity, past performance and product linkage moving into machine-searchable commerce systems, while the scale and performance claims remain company-reported.