# Bidvix

> AI visibility diagnosis for any website — see how ChatGPT, Gemini, Claude and Perplexity answer the questions your customers ask about your brand, and fix the gaps that keep you out of AI answers.

## Products

- **Free diagnosis** — https://bidvix.com/  Run an AI visibility + technical SEO diagnosis for any public domain. No signup required.
- **Pro plan** — https://bidvix.com/pricing  More diagnoses per month, multi-engine sampling (ChatGPT, Gemini, Claude, Perplexity, DeepSeek), competitor share-of-voice benchmarks, scheduled re-scans and change alerts.
- **Public API** — https://bidvix.com/api-docs  Pay-as-you-go diagnosis API billed in credits. Bearer key auth; each successful diagnosis costs 1 credit.
- **AI referral attribution** — Connect Google Analytics 4 to measure sessions and revenue from AI platforms.

## Key facts

- Bidvix is a web-based diagnostic tool for SEO and Generative Engine Optimization (GEO).
- It reads only public pages — no site access, credentials, or tracking scripts are required.
- Supported AI engines: ChatGPT, Gemini, Claude, Perplexity, DeepSeek.
- Diagnosis outputs include: AI mention rate, citation rate, competitor share of voice, technical SEO audit, sentiment analysis, claim accuracy checks, and a prioritized action plan.
- Every scan is measured on the same AI answers, so brands share one denominator and are directly comparable.
- API pricing starts at $8.00 for 10 credits.

## Pages

- [Home — AI visibility diagnosis](https://bidvix.com/)
- [Pricing — free diagnosis, Pro, and API credits](https://bidvix.com/pricing)
- [About Bidvix](https://bidvix.com/about)
- [Help center](https://bidvix.com/help)
- [Free tools — llms.txt generator and AI visibility checker](https://bidvix.com/tools)
- [Free llms.txt generator](https://bidvix.com/tools/llms-txt-generator)
- [Free AI visibility checker](https://bidvix.com/tools/ai-visibility-checker)
- [Privacy policy](https://bidvix.com/privacy)
- [API documentation](https://bidvix.com/api-docs)

## Guides

- [The GEO audit checklist: 21 AI visibility checks](https://bidvix.com/guides/geo-audit-checklist): The exact 21 checks our diagnosis engine runs — crawlability, metadata, structure, content and AI readiness — with how to test and fix each one.
- [How to create an llms.txt file (with example)](https://bidvix.com/guides/how-to-create-llms-txt): A practical, copy-ready guide to writing llms.txt — the plain-text file that tells AI models who you are, what you sell and which pages matter.
- [How to get recommended by ChatGPT](https://bidvix.com/guides/how-to-get-recommended-by-chatgpt): A step-by-step method to raise the odds that ChatGPT names your brand when a buyer asks for a recommendation — and keeps describing you correctly.
- [How to track AI referral traffic in GA4](https://bidvix.com/guides/track-ai-referral-traffic-ga4): Set up GA4 so you can see how many real visitors and revenue come from ChatGPT, Perplexity, Gemini and Claude — and why default reports miss most of it.
- [What is generative engine optimization (GEO)?](https://bidvix.com/guides/what-is-generative-engine-optimization): GEO makes your brand visible and quotable inside AI answers. Learn how models choose what to recommend and which changes move you into the answer.

## Comparisons

- [Best GEO tools in 2026](https://bidvix.com/compare/best-geo-tools): A practical comparison of GEO tools — what each category does, how to evaluate them, and when to pick a diagnosis-first versus monitoring-first tool.
- [Bidvix vs AthenaHQ](https://bidvix.com/compare/bidvix-vs-athenahq): A fair comparison of Bidvix and AthenaHQ for AI visibility tracking — positioning, depth, pricing model and where each one fits.
- [Bidvix vs Otterly](https://bidvix.com/compare/bidvix-vs-otterly): Bidvix vs Otterly for AI search visibility — how the two tools differ in monitoring depth, audit coverage, pricing and developer access.
- [Bidvix vs Profound](https://bidvix.com/compare/bidvix-vs-profound): Bidvix vs Profound — enterprise-scale prompt analytics versus affordable per-domain diagnosis. Where each fits and what you actually get.
- [Bidvix vs Scrunch](https://bidvix.com/compare/bidvix-vs-scrunch): Bidvix vs Scrunch — scope differences, how AI referral traffic fits, and which tool matches a diagnosis-first versus attribution-first strategy.

## Answers

- [Do I need an llms.txt file?](https://bidvix.com/answers/do-i-need-llms-txt): Optional and not a ranking factor, but cheap and low-risk as an AI-readable brand fact sheet. When to bother — and when not to.
- [How do I know if AI cites my website?](https://bidvix.com/answers/how-do-i-know-if-ai-cites-my-website): Four checks — prompt testing with sources, referrer analysis, crawler logs and structured sampling — plus what each can and cannot prove.
- [What is AI share of voice?](https://bidvix.com/answers/what-is-ai-share-of-voice): AI share of voice is your portion of brand mentions across AI answers in your category. How it is measured, and how it differs from web SoV.
- [Why doesn't ChatGPT recommend my brand?](https://bidvix.com/answers/why-does-chatgpt-not-recommend-my-brand): The usual causes — crawler access, thin or unevidenced content, unclear positioning, weak third-party proof — and how to identify which one blocks you.

## Glossary

- [GEO glossary — the terms that matter](https://bidvix.com/glossary/geo-terms): A plain-English glossary of GEO terms: AI visibility, mention rate, citation rate, share of voice, AI crawlers, llms.txt and more.

## Machine-readable copies

- Every guide, comparison, answer and glossary page is also served as raw Markdown by appending `.md` to its URL (e.g. /guides/what-is-generative-engine-optimization.md).
- The llms.txt generator and AI visibility checker are at /tools.

## Contact

- Email: hello@bidvix.com