Comparison
Two free AI-visibility audits that ship real fixes. Here is an honest look at where each one wins.
311+ sites analyzed
100% free · No signup · Report in 30 seconds
Both tools are free, skip the signup, and hand you ready-to-paste fixes — so they are genuinely close. Pick LLCrawler if you want it to stay $0 forever with no paid tier, work in English or Spanish, and generate the actual files for you: llms.txt, a JSON-LD schema kit, a shareable badge, and a Markdown agent prompt you can drop into ChatGPT or Claude. Pick SiteTest.ai if you prefer its clean A–F grade and you are willing to pay $4.99–$24.99/mo for developer briefs and re-audit credits. SiteTest is English-only today. For most people who just want one fast, free, no-strings audit, LLCrawler is the simpler call.
Honest note: we build LLCrawler. We still think the answer above is fair. If you disagree, email us — we will update this page.
| Feature | LLCrawler | SiteTest.ai |
|---|---|---|
| What it does | One-off technical audit scoring your LLM/AI-search visibility | Free AI-visibility checker that grades and ships code fixes |
| Pricing | 100% free, no paid tier | Free core audit; paid tiers $4.99–$24.99/mo for advanced features |
| Signup required | No signup, no card | No signup, no card |
| Time to first insight | ~30 seconds | Fast, comparable free audit |
| What gets scored | 6 categories: structured data, content structure, meta/social, performance, AI readiness, sitemap | Schema, llms.txt and robots validation; speakable + FAQPage schema |
| Coverage | Score + prioritized issues + fixes + generated files + badge + agent prompt | A–F grade + ready-to-paste code fixes; developer briefs behind paid tiers |
| Best for | Anyone wanting a free, bilingual, no-strings audit with files done for them | Teams who like an A–F grade and will pay for developer briefs and re-audits |
| Output | Score, issues, fixes, llms.txt, JSON-LD kit, badge, ChatGPT/Claude agent prompt | A–F grade, code fixes, schema/llms.txt/robots validation |
Yes. LLCrawler is 100% free with no paid tier at all. SiteTest.ai has a free core audit (no signup, no card) but gates advanced features like developer briefs and re-audit credits behind paid tiers from $4.99 to $24.99/mo.
LLCrawler stays $0 forever, works in English and Spanish, and generates the actual files for you — llms.txt, a JSON-LD schema kit, a shareable badge, and an agent prompt. SiteTest.ai is English-only, uses an A–F grade, and reserves developer briefs and re-audits for paid plans.
No. Neither tool requires a signup or a credit card to run the free audit. You paste a URL and get your report.
LLCrawler. It is fully bilingual in English and Spanish, so the audit and report come back in your language. SiteTest.ai is English-only today.
Yes. Both ship ready-to-paste fixes rather than only a score. LLCrawler goes further by generating the files themselves and a Markdown agent prompt you can hand to ChatGPT or Claude; SiteTest.ai ships code fixes too but puts its deeper developer briefs behind paid tiers.
Run a free, no-signup audit and get your score, prioritized issues, and ready-to-paste fixes — plus generated llms.txt and JSON-LD files.
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