Guides
Guides
Answers built from what Google, OpenAI and Perplexity publish, the research that exists, and our own price data. Every guide is dated and lists its sources.
Are AI visibility tools accurate?
AI assistants rarely give the same brand list twice, and API answers differ from the apps people use. What that means for AI visibility scores.
Guide · primary sourcesDoes llms.txt work?
Not for Google: its docs say Search ignores llms.txt, including AI Overviews and AI Mode. No major AI assistant says it reads the file either. Sources inside.
Free toolsFree AI visibility checkers, compared
What each free checker asks for and what it's really checking.