Free AI SEO Audit Tool: Check Your AI Search Readiness
A free scan that checks whether AI assistants like ChatGPT, Perplexity and Google AI Overviews can reach, read and recognise your site and answer your buyers' questions, with the fixes to make. Results in about 30 seconds, no signup.
How AI sees 
rankzero.io
AI can get into your site, and its company details are complete. Two fixes would help most: put your prices in the page itself and load your text before the code.
Most SEO tools tell you how you rank in Google. This one tells you whether AI assistants can use your site at all.
Key takeaways
- This free scan answers four questions about your site: can AI assistants reach it, can they read it, do they know who you are, and can they answer the questions buyers ask.
- Standard SEO audits rarely check any of this. A site that ranks page 1 on Google can still block ChatGPT's crawler or hide its copy behind JavaScript.
- It reads the homepage and up to 15 pages, one of each kind first, scores the site out of 100, and gives every gap a fix with a prompt you can paste into your AI coder.
- The scan is free, runs on any public URL, and requires no account. Results come back in about 30 seconds.
- The score says whether assistants can use your site. It does not measure how often AI answers mention you, and no fix here guarantees a citation or a ranking.
The difference
How an AI SEO Audit Differs from a Regular SEO Audit
Regular SEO audits were built for Google's ranking algorithm: keyword density, backlink profile, page speed, Core Web Vitals. Those signals matter for ranking in a list of ten links. AI search doesn't work that way.
When a buyer asks ChatGPT "which CRM is best for a remote sales team of 20?", ChatGPT doesn't return a list of links. It names a handful of brands and explains why. The signals that drive citation selection are different from the signals that drive ranking: structured content, schema markup, LLMs.txt, AI crawler access, and third-party authority across sources AI trusts.
A brand with a 40 domain authority but properly structured content can appear in ChatGPT answers ahead of a DR 80 competitor that hasn't optimized for AI extraction. The free RankZero scan checks the part of that an assistant needs from your own site: reaching it, reading it, recognising you, and answering buyers from it.
For SaaS companies, this gap is especially costly. Only a handful of brands get cited per AI response to a software recommendation query. An assistant that cannot reach or read your site has nothing to name you from, and those slots go to competitors at the moment of highest buying intent. See how AI search affects SaaS brands or book a free 15-minute AI search audit call to see your current citation share against your top competitors.
What we check
What This AI SEO Audit Checks
A standard SEO audit checks your page title, meta description, and backlink count. This scan checks something different: whether the systems powering ChatGPT, Perplexity and Google AI Overviews can reach your site, read it, tell who you are and answer a buyer's question from it. It reads the homepage and up to 15 pages across the site, and scores four questions worth 25 points each.
Reach: can AI assistants get to your site?
The scan reads your robots.txt and reports which AI crawlers it lets in, then checks that you have a sitemap and an llms.txt. Llms.txt is a structured file, similar to robots.txt, that tells AI crawlers what your site is about and which pages matter. If yours is missing, the scan flags it and links to the free LLMs.txt generator to write one in under 60 seconds.
Read: is the copy there to read?
An assistant reads the HTML your server returns, not the page a browser paints after JavaScript runs. The scan checks how much of your copy is in that HTML, and whether each sampled page has one H1, headings in order, a language set and a canonical URL.
Recognise: do they know who you are?
OAI-SearchBot powers ChatGPT's live web retrieval, ClaudeBot powers Anthropic's Claude, and PerplexityBot powers Perplexity. Each of them has to work out who a site belongs to. The scan checks whether your Organization markup names the company and carries a contact point, an address and your profiles, and whether a link preview is set. Check the markup itself with the structured data validator.
Answer: can they answer what buyers ask?
Buyers ask assistants what something costs, what it ships in and whether it can be returned. For a shop, the scan checks product markup for price and availability, plus returns, shipping and review markup. For any other site, it checks for a pricing page an assistant can read. Both are checked for FAQ markup. Selling physical products? The AI ecommerce report runs the same read against product pages and ChatGPT Shopping.
The score, and what you do with it
Each of the four questions is worth 25 points, and loses points for every gap, by the impact of the fix that closes it, which how the score is worked out sets out check by check. Every gap comes with its fix and a prompt you can paste into Cursor, Claude Code or your developer's AI coder. What the scan does not do: it does not measure how often AI answers name you, and it does not read your competitors.
30+ Agencies Track AI Search on Our Platform
Rated 4.9/5 on G2. Brands that have run this audit include HelloFresh, Vio and CloudTalk. Named a European AI SEO leader by Dawn Capital.
From audit to action
How to Improve Your AI SEO Score
Once your audit finishes, work the fixes in this order. The first two clear hard blockers; the rest compound how often AI cites you.
- 1
Read your score and its gaps
Your scan returns a score out of 100 and the fix behind every point it took off, ranked by impact. Work the list from the top.
- 2
Unblock AI crawlers first
If robots.txt blocks OAI-SearchBot, ClaudeBot or PerplexityBot, that assistant cannot read a single page. Open crawler access before anything else.
- 3
Add your missing AI files
Generate an LLMs.txt and add whatever markup the scan flagged as missing, such as Organization, Product or FAQPage, so an assistant can tell who you are and what you sell.
- 4
Put your copy in the HTML
Copy that only appears once JavaScript runs is copy an assistant may never see. Serve it in the HTML, with one H1 and headings in order.
- 5
Scan again
Run the scan once the changes are live to confirm each fix landed and the points came back.
don't just take our word for it.
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A 30-second check of whether AI can reach, read and recognise your site.
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A roadmap to get your company recommended in AI search.
Will S.
Director of Digital Products
"Awesome customer service and founders that care"
February 13, 2026 · Mid-Market
They're helping companies rank in AI answers, but really their customer service is the best thing about the product.
Wendy Kinney
Founder, Summit Trails
The articles were really well-written and genuinely in our voice. Honestly, I hang on every update you send.
Eugenio G.
Founder
"Brand Visibility Tracking"
February 11, 2026 · Small-Business
Implementation is very easy, with recommendations made by customer support. The founder is also available for answers.
Lóránt Bartha
Founder, Ookulli
When we see which prompts we're ranking in, we can turn the product toward that demand.
Sindram L.
Founder
"Clear AI prompt tracking and traffic insights"
February 14, 2026 · Small-Business
Full visibility of how my brands show up in AI models, and clear data on what to focus on.
Co-Founder
DTC pet wellness brand
RankZero made AI search a channel. It now drives more revenue than our paid social.
Will S.
Director of Digital Products
"Awesome customer service and founders that care"
February 13, 2026 · Mid-Market
They're helping companies rank in AI answers, but really their customer service is the best thing about the product.
Wendy Kinney
Founder, Summit Trails
The articles were really well-written and genuinely in our voice. Honestly, I hang on every update you send.
Eugenio G.
Founder
"Brand Visibility Tracking"
February 11, 2026 · Small-Business
Implementation is very easy, with recommendations made by customer support. The founder is also available for answers.
Lóránt Bartha
Founder, Ookulli
When we see which prompts we're ranking in, we can turn the product toward that demand.
Sindram L.
Founder
"Clear AI prompt tracking and traffic insights"
February 14, 2026 · Small-Business
Full visibility of how my brands show up in AI models, and clear data on what to focus on.
Co-Founder
DTC pet wellness brand
RankZero made AI search a channel. It now drives more revenue than our paid social.
Will S.
Director of Digital Products
"Awesome customer service and founders that care"
February 13, 2026 · Mid-Market
They're helping companies rank in AI answers, but really their customer service is the best thing about the product.
Wendy Kinney
Founder, Summit Trails
The articles were really well-written and genuinely in our voice. Honestly, I hang on every update you send.
Eugenio G.
Founder
"Brand Visibility Tracking"
February 11, 2026 · Small-Business
Implementation is very easy, with recommendations made by customer support. The founder is also available for answers.
Lóránt Bartha
Founder, Ookulli
When we see which prompts we're ranking in, we can turn the product toward that demand.
Sindram L.
Founder
"Clear AI prompt tracking and traffic insights"
February 14, 2026 · Small-Business
Full visibility of how my brands show up in AI models, and clear data on what to focus on.
Co-Founder
DTC pet wellness brand
RankZero made AI search a channel. It now drives more revenue than our paid social.
Will S.
Director of Digital Products
"Awesome customer service and founders that care"
February 13, 2026 · Mid-Market
They're helping companies rank in AI answers, but really their customer service is the best thing about the product.
Wendy Kinney
Founder, Summit Trails
The articles were really well-written and genuinely in our voice. Honestly, I hang on every update you send.
Eugenio G.
Founder
"Brand Visibility Tracking"
February 11, 2026 · Small-Business
Implementation is very easy, with recommendations made by customer support. The founder is also available for answers.
Lóránt Bartha
Founder, Ookulli
When we see which prompts we're ranking in, we can turn the product toward that demand.
Sindram L.
Founder
"Clear AI prompt tracking and traffic insights"
February 14, 2026 · Small-Business
Full visibility of how my brands show up in AI models, and clear data on what to focus on.
Co-Founder
DTC pet wellness brand
RankZero made AI search a channel. It now drives more revenue than our paid social.
Questions, answered
The things teams ask us before getting started.