Free AI visibility audit: test your site on ChatGPT and Gemini in 30 seconds
A free tool is now enough to know whether AI recommends your site or your competitors. Here is what it measures, how to read the results, and what to fix first.
The free Hikoo audit analyzes your URL in 30 seconds: it checks AI crawler access (GPTBot, ClaudeBot, Google-Extended), queries ChatGPT and Gemini on real customer questions, measures your citation rate, identifies the competitors appearing in your place, and returns a global GEO score from 0 to 100 with the 3 fixes to launch this week. No account, no credit card.
Why an AI audit and not a classic SEO audit?
In October 2025, Sam Altman confirmed that ChatGPT exceeds 800 million weekly users . On Google, AI Overviews now capture the first answer: 58.5% of searches in the United States and 59.7% in Europe end without a click to an external site . Classic SEO measures your position in the SERPs. It says nothing about your presence inside the generated answer the user actually sees.
An AI visibility audit answers a single question: when a prospect asks ChatGPT or Gemini for a tool like yours, are you cited? If the answer is no, the audit identifies the why: blocked crawler, missing llms.txt, content too short, weak authority, better-positioned competitors.
What the Hikoo audit measures in 30 seconds
The audit combines two families of signals: a technical crawl of your URL and a live test against AI models.
- Technical GEO health: title, meta description, unique H1, mobile viewport, robots.txt, sitemap, llms.txt, Schema.org structured data, content length, author and date presence.
- AI crawler access: GPTBot, ClaudeBot, Google-Extended, OAI-SearchBot, PerplexityBot, and bingbot. If one is blocked, the score drops and the audit names it explicitly.
- Measured AI visibility: a sample of prompts representative of your industry is sent to ChatGPT and Gemini. The tool counts how many responses cite your domain.
- Competitor gap: domains cited in your place are surfaced. You see exactly who is winning the AI recommendations from you.
- Citation-ready score: E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) signals that AI uses to weigh the reliability of a source.
Sites with Domain Trust above 91 get on average 6 citations per AI query, versus 1.6 for those under 43. The gap widens further when authority, llms.txt, and content freshness are combined. A regular audit is the only way to see where you sit on this curve.
How to read your global GEO score
The global GEO score aggregates three weighted sub-scores: technical health (40%), measured AI visibility (40%), and citation-readiness (20%). Here is the reading grid the Hikoo team uses on client audits.
- Score 0 - 39: your site is nearly invisible to AI. Fixes are massive (often a blocked crawler, no llms.txt, no schema). Every day without action, your competitors capture conversational traffic in your place.
- Score 40 - 69: AI sees your site but does not recommend it enough. The technical base is correct, but authority or content depth is missing. A wave of targeted optimizations (3 to 5 streams) is usually enough to clear the 70 mark.
- Score 70 - 100: AI recommends you. You are above the sector median. The challenge becomes maintenance: monitoring competitors, quarterly content refreshes, watching new models (GPT-5, Gemini 3, Claude 4.7).
The 6 checks that drive the score
| Check | Why it matters | Typical fix |
|---|---|---|
| AI crawlers (GPTBot, ClaudeBot, Google-Extended) | If blocked, your site is invisible to ChatGPT, Claude, and Google AI Overviews. | Allow explicitly in robots.txt. |
| llms.txt file | Tells AI which pages to prioritize. Adopted by OpenAI, Anthropic, and Perplexity. | Publish /llms.txt and /.well-known/llms.txt. |
| Structured data (Schema.org) | AI extracts Organization, Article, FAQPage, and BreadcrumbList better than raw text. | Add JSON-LD inside the <head>. |
| Visible author and date | E-E-A-T has been a major citation criterion since the December 2025 Google update. | Display the author, their role, and the update date. |
| Content depth | Pages > 2,900 words receive on average 5.1 citations versus 3.2 below 800 words. | Beef up target pages with data and citations. |
| Citations on real prompts | The only direct indicator: does your domain appear when a prospect queries AI? | Iterate content + authority, retest every 2-4 weeks. |
What the free audit does not do (and why)
Let us be transparent. A 30-second analysis on a single URL does not replace a full GEO audit. It is built to give a reliable signal quickly, not an exhaustive map.
- Only one URL analyzed per audit (not the entire site).
- Limited prompt sample (the full audit tests several hundred per month).
- ChatGPT and Gemini only in the free version. Perplexity, Claude, and Bing Copilot are in the full audit.
- No score history, no competitor alerts, no daily monitoring.
- No per-page personalized recommendations: only the top 3 global priorities.
For a deeper look across your whole site, see our complete guide to ChatGPT citations.
What to do in the week after your audit
- Unblock AI crawlers. If the audit flags GPTBot, ClaudeBot, or Google-Extended as blocked, remove the Disallow directive from robots.txt. Time: 10 minutes. Impact: regain eligibility for citations.
- Publish a minimal llms.txt. List your 10-15 strategic pages with a title and a short description. Deploy at /llms.txt and /.well-known/llms.txt. Time: 1 hour. Impact: strong signal for OpenAI, Anthropic, and Perplexity.
- Add Organization, Article, and FAQPage JSON-LD. Generate it with a dedicated tool if needed, paste it into the <head>. Time: 2 to 4 hours depending on the CMS. Impact: better extraction by AI, better eligibility for AI Overviews.
- Beef up the 5 most strategic pages: minimum 2,900 words, expert quotes, sourced statistics, visible update date. Time: 1 to 2 weeks. Impact: significant jump on the citation-readiness sub-score.
- Re-run the audit 14 days later to measure the delta. AI models update their index every 2 to 4 weeks (Princeton, GEO).
Run your free audit now. One URL, 30 seconds, your GEO score, and the 3 priority fixes. Test my site on tryhikoo.com/tools/free-audit.
Frequently asked questions
Conclusion
AI search is no longer an optional channel: it is one of the first contact points between your prospects and your market. A free audit does not replace a complete GEO strategy, but it answers in 30 seconds the only question that matters today: is AI recommending your site, or is it recommending your competitors? From that measurement, the action plan becomes obvious: unblock crawlers, publish an llms.txt, structure your data, beef up target pages, measure the delta every two weeks.
Sources
- Aggarwal P., Murahari V., Rajpurohit T., Kalyan A., Narasimhan K., & Deshpande A. GEO: Generative Engine Optimization. arXiv / ACM KDD 2024
- Southern M. New Data Reveals The Top 20 Factors Influencing ChatGPT Citations. Search Engine Journal, 2025
- Lafferty N. AI Platform Citation Patterns. Profound, 2025
- Goodwin D. Google AI Overviews Are Hurting Click-Through Rates. Search Engine Land, 2025
- Up & Social Zero-Click Searches: Why 60% of Google Users Never Click Through. 2025
- Altman S. Sam Altman says ChatGPT has hit 800M weekly active users. TechCrunch, 2025
Related Articles
Practical guide for executives. 255 French sites scanned, average level 0.86 out of 5 and none above 2 out of 5. The stakes, the 5 actions, and the 4 questions to ask your leadership team.
Discover our ranking of the top 10 GEO (Generative Engine Optimization) agencies in 2026. Detailed comparison, methodology, and tips for choosing your partner.
Discover our ranking of the top 10 SEO agencies in France in 2026. Detailed comparison reflecting the evolution toward GEO and AI Overviews.