# Citedify > Citedify tracks whether ChatGPT, Claude, Perplexity and Google AI Overviews recommend a brand, re-tests every month, and gives a prioritised list of what to fix. It is sold as a monthly subscription. Each audit asks the AI engines the questions a brand's buyers ask (discovery, comparison, pricing and integration questions), records which brands the answers mention and recommend, and compares the brand with its competitors. Contact: team@citedify.com. ## Product - [AI visibility audit](https://www.citedify.com/ai-visibility-audit): what an audit measures and what the report contains - [AI visibility tracking](https://www.citedify.com/ai-visibility-tracking): monthly re-testing across ChatGPT, Claude, Perplexity and Google AI Overviews - [AI brand monitoring](https://www.citedify.com/ai-brand-monitoring): checking what AI engines say about a brand - [Local business AI visibility](https://www.citedify.com/local-business-ai-visibility): AI recommendations for local businesses - [E-commerce AI visibility](https://www.citedify.com/ecommerce-ai-visibility): AI recommendations for online stores ## Guides - [Generative engine optimization (GEO)](https://www.citedify.com/generative-engine-optimization): what GEO is and how it works - [GEO vs SEO vs AEO](https://www.citedify.com/blog/geo-vs-seo-differences-2026): how the three disciplines differ - [How to rank in Google AI Overviews](https://www.citedify.com/blog/google-ai-overviews-seo-guide-2026): ranking factors and tactics - [AI crawler directory](https://www.citedify.com/ai-crawlers): every major AI crawler, its user agent, and what blocking it does - [Free GEO course](https://www.citedify.com/learn): six lessons on getting cited by AI engines ## Free tools - [llms.txt generator](https://www.citedify.com/tools/llms-txt-generator): create a file like this one - [AI Overview score](https://www.citedify.com/tools/ai-overview-score): estimate how ready a page is for AI Overviews - [Schema generator](https://www.citedify.com/tools/schema-generator): FAQ, Article and HowTo JSON-LD ## Optional - [Blog](https://www.citedify.com/blog): all articles on AI search and GEO - [AI visibility tool pricing compared](https://www.citedify.com/compare): published prices of AI visibility tools - [About Citedify](https://www.citedify.com/about-us)