About

About GeoStack

GeoStack is the independent source for AI search visibility tool rankings. We evaluate every tool against a transparent 6-dimension methodology — pricing transparency, documentation quality, engine coverage, feature completeness, content freshness, and vendor maturity. Weights are derived via the Analytic Hierarchy Process (AHP).

Our rankings are independent. We don't accept payment for placement. Every score is based on publicly verifiable data from each tool's own website and domain registration records. Tools that embed our verification badge get a Verified Partner indicator, but badge embedding is free and only used to break score ties — never to inflate rankings.

As of 2026, we track 17 AI search visibility tools across 5 major AI engines: ChatGPT, Perplexity, Google AI, Claude, and Gemini. Our rankings update monthly based on the latest public data.

Our principles

No pay-to-play. Tools that pay for placement do not get higher scores.
Public methodology. Every score is based on verifiable, public data.
No hands-on testing required. We don't require subscriptions or demos to rank a tool.
Honest about methodology. Every score is based on the tool's own website and domain records — fully verifiable by anyone.
Monthly updates. Rankings refresh every month with the latest data.

Who we are

GeoStack is built and maintained by a small team of SEO and GEO practitioners. We use these tools in our own work, and we built GeoStack because we wanted a single, honest source for AI search visibility rankings. If you have feedback or a tool we should know about, submit it for review.

Know a GEO tool we're missing?

Free listing. Independent review. No pay-to-play.

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