The 6 Authority Signals AI Systems Use to Decide Who to Cite
Every AI answer engine applies authority scoring before deciding whether to cite a source. The inputs differ slightly by platform - Google AI Overviews weights schema and Knowledge Graph heavily; ChatGPT Search weights editorial backlinks and co-citation; Perplexity AI applies real-time source credibility scoring. But six signals appear consistently across all major platforms.
Understanding where you stand on each signal - and having a prioritized improvement plan - is the foundation of any serious E-E-A-T strategy. Start with the E-E-A-T for AI foundations guide before diving into individual signal optimization.
Authority Signal Weights (Animated)
Each bar represents the relative weight of that authority signal in AI citation decisions across all major platforms, averaged across Google, ChatGPT, Perplexity, and Copilot.
Deep Dive: Each Authority Signal
Click any signal to expand the full explanation, AI platform context, and three concrete action items.