AI Search Visibility Platform
Free AI SEO tools for AI search and Google, with no account.
RankX AI’s free AI SEO tools are a site audit and five checks, each answering one question about how AI search and Google see your website.
Results are cached, so a repeat check inside the cache window is instant and costs nothing.
What they are
See how AI search sees you, before you pay for anything.
Free AI SEO tools test whether search engines and AI assistants can find, read and cite a website in AI answers. RankX AI’s run online.
What they are
One question per tool, answered online
The AI site audit scores up to 6 key pages of a site. The five checks each answer one thing: whether ChatGPT and Gemini name you, whether AI crawlers can reach you, how ready one page is from its server-rendered text to its title, meta description and schema, whether a Google AI Overview cites you for a keyword, and what an llms.txt file for your site would list.
A finding you can act on today, with the working shown.
Who they are for
Site owners, marketers and SEO agencies
Marketers and founders who want to know whether AI search can see their business before they pay for tracking; SEO and GEO agencies checking a prospect’s site before a call; developers confirming that a robots.txt or CDN change did what they meant.
If nobody has ever checked, the first result is usually news.
What they cost to run
Free, with no account and no card
Every tool is free and none needs an account. The site audit and three checks answer on the page at once. The AI Visibility Checker and the AI Overview Checker verify your email address first and send the report there, three free reports per address, because each run buys live answers from a data provider.
Fair-use limits apply per visitor, and a repeat check inside the cache window is instant.
Free versus continuous
Where each free check stops, and what keeps checking.
A free check answers once. RankX AI’s paid features ask the same question on a schedule and keep every answer, so a change shows.
AI Site Audit
- Answers
- How ready the key pages of a site are for AI search, scored against a published rubric.
- Stops at
- A sample of up to 6 pages, checked once.
- Continuously
- The RankX AI SEO audit tool crawls the whole website on a schedule you choose and turns its SEO issues into tasks.
AI Visibility Checker
- Answers
- Whether ChatGPT and Gemini name your business for three buying questions.
- Stops at
- Two assistants, questions it writes for you, one reading.
- Continuously
- The RankX AI visibility tool tracks the prompts you choose on ChatGPT, Claude, Gemini, Grok, Perplexity and Microsoft Copilot, with the assistants set per website.
AI Crawler Access Checker
- Answers
- Which AI crawlers your robots.txt allows, and what your server returns to each.
- Stops at
- Your homepage and robots.txt, from one probe, today.
- Continuously
- The free crawler watch re-runs the check every 28 days and emails you only when access changes. You start it from the result.
AI Readiness Score
- Answers
- How ready one page is to be found, read and quoted, from 0 to 100.
- Stops at
- One page, the raw HTML only, no history.
- Continuously
- Website Audit in RankX AI grades every issue across the whole website by severity, on a schedule you choose.
AI Overview Checker
- Answers
- Whether one keyword shows a Google AI Overview, what it says and who it cites.
- Stops at
- One keyword, one market and device, one moment.
- Continuously
- The RankX AI Overview tracker reads every rank check of every keyword you track and keeps each result.
llms.txt Generator
- Answers
- What a valid, curated llms.txt file for your site would contain.
- Stops at
- It writes the file; publishing it is up to you.
- Continuously
- Nothing needs tracking: regenerate the file when your key pages change.
How these are built
Every tool answers first, then shows its working.
Free SEO tools are known for gated results and invented scores. RankX AI’s follow three rules instead.
Gated only where a check costs us money
Three of the five checks return their full result with no email, no account and no trial dialogue in the way, and results cache for up to 24 hours, so re-checking after a fix is instant. The AI Overview Checker and the AI Visibility Checker ask for an address first, because every run of either buys live answers from a data provider: three free reports per address on each, delivered by email.
Evidence-graded results
Where the evidence is weak, the tools say so on the result: crawler probes are observations rather than proof, llms.txt has almost no measured consumption, and a single AI Overview check is a snapshot of a moving surface. A tool that overstates its own certainty is measuring its marketing, not your site.
The free edge of the platform
The checks are the free edge of the RankX AI platform, which tracks your brand across the AI assistants, audits whole sites and publishes fixes. RankX AI holds its own site to the same checks: on 1 October 2026, the rankxai.com homepage, pricing page and AI visibility feature page each scored 100 on the AI Readiness Score.
Questions
Free SEO tools for AI search, questions answered.
Which one to run first, what free really means, and where a single check stops being enough.
What are free AI SEO tools?
Free AI SEO tools are checks that test, at no cost, whether AI assistants and Google can find, read and cite a website. RankX AI offers a site audit and five single-question checks: AI visibility in ChatGPT and Gemini, AI crawler access, one page’s AI readiness, Google AI Overview citations, and an llms.txt generator.
Which free AI tool should I run first?
Start with the robots.txt checker for AI crawlers, because an assistant that cannot reach your site cannot cite it, and the check takes about twenty seconds with no email. Then score your most important page with the AI SEO checker for one page. Once both pass, the AI visibility checker shows whether ChatGPT and Gemini name you, and the Google AI Overview checker does the same for one keyword. For a whole-site view first, run the free AI SEO audit, which samples up to 6 pages.
Are these SEO tools really free?
Yes. All six tools are free to use, and none asks for a card or an account. RankX AI pays for every run, so the two checks that buy live answers from a data provider, the AI Visibility Checker and the AI Overview Checker, allow three free reports per email address. Fair-use limits per visitor and a daily ceiling keep the tools running for everyone else.
Why do two of the tools ask for my email address?
Because each run of the AI Visibility Checker or the AI Overview Checker costs RankX AI money at a data provider. Both check that your address can receive mail before anything is spent, then send the report to it. Your address is used for that report and nothing else, unless you tick the optional newsletter box. The other three checks never ask.
How do I judge which free AI SEO tool is best?
Judge any free AI SEO tool, ours included, on four things. It reads the raw HTML that AI crawlers read rather than a browser view. It separates what robots.txt asks from what your server actually returns. It publishes how its score is calculated. And it says when one result is a snapshot rather than a trend. A tool that hides its rubric or promises citations is selling certainty nobody has.
How are these different from free Semrush or Ahrefs tools?
They answer different questions. Classic free SEO tools centre on traditional SEO: Google rankings, keyword research and backlinks. Ahrefs Webmaster Tools, for example, gives a free technical SEO audit and backlink data on websites you verify. RankX AI’s free tools test the AI search side: whether assistants name you, whether AI crawlers can reach you, and who Google AI Overviews cite.
What is llms.txt, and should I bother with one?
llms.txt is a proposed markdown file at a site’s root that lists the pages a language model should read first. The free llms.txt generator writes a valid, curated file from your sitemap in seconds, so it costs you almost nothing to have one. Treat it as a low-cost extra rather than a ranking lever: Google’s guidance on its generative AI features, updated July 2026, says Google Search does not use such files, and Ahrefs found that 97% of about 38,000 valid llms.txt files received no requests at all in May 2026.
Is there a free tool that tracks Perplexity?
RankX AI tracks Perplexity in its AI visibility tool, which asks the prompts you choose on ChatGPT, Claude, Gemini, Grok, Perplexity and Microsoft Copilot on a schedule you set, with the assistants chosen per website. The free AI Visibility Checker covers ChatGPT and Gemini, and the 7-day free trial adds Perplexity and every other assistant with no card required.
Can one free check be trusted?
Yes, for the moment it ran, and every RankX AI result states where and when it looked. AI Overviews and assistant answers change between runs, by market, device and day, so a free check tells you whether something needs fixing now. Seeing whether it is getting better takes the same check repeated over time, which is what the paid features keep.
Do I still need a paid SEO platform?
Only once you want the answers kept. A free tool tells you where you stand today; an SEO platform asks again on a schedule and shows the trend. RankX AI is an AI SEO platform, and its paid plans add AI visibility tracking across the assistants, Google rank tracking with AI Overview citations, a technical SEO and content audit of the whole site, a keyword research tool, AI content creation in Content Studio, and your Search Console data, all from one credit wallet. The 7-day free trial needs no credit card.
Do the tools need access to my website?
No. Every check reads what any visitor or crawler can already read: your public pages, your robots.txt and your sitemap, or a Google search for a keyword. None needs a login, a plugin, a Search Console connection or a code snippet, so you can check a client’s or a competitor’s public site the same way as your own.
Start here
See where you show up in AI answers today.
Add your site and RankX AI suggests prompts, tracks your keywords and audits your pages, with first results minutes after setup.
7-day free trial. No credit card required. Cancel anytime.