llms.txt Checker
Check whether your site publishes a valid llms.txt file for large language models.
Private by default · no cookies · no personal tracking · results are never published
How Does It Work?
llms.txt is a markdown file at /llms.txt that helps LLMs understand your site. Enter your URL and we check that it exists, is plain text, and sits alongside AI-friendly robots.txt rules.
How It Works
We read your page the way AI crawlers do (the raw HTML, without running JavaScript), score what we find and give you copy-paste fixes.
Can Google Show You Properly?
Your page title, the short summary under your link, clear headings, and a sitemap so nothing gets missed.
Title tag · meta description · H1/H2 · canonical URL · Open Graph · sitemap.xml · robots.txt
Can an AI Quote You?
Clear questions with short, direct answers that an assistant can lift into its reply, plus labels that tell machines what each page is.
JSON-LD structured data · FAQPage/HowTo schema · question headings · 40–60 word answers
Will AI Recommend You?
Whether ChatGPT, Claude, Perplexity and Grok are allowed in, can read real text (not a blank JavaScript shell), and can tell who is behind the site.
llms.txt · GPTBot, ClaudeBot, PerplexityBot, GrokBot, xAI-SearchBot, Google-Extended access · Organization/Person schema · readable text · author signals
What AI Sees
A preview of your page as most AI crawlers see it, built from the real content we found.
Copy-Paste Fixes
Ready-to-use llms.txt, JSON-LD, meta tags and robots.txt snippets made from your own site, with copy buttons.
Private by Default
No sign-up, no cookies, no personal tracking. Your results are never published and aren't tied to you. We only keep short-lived caches; see privacy.
Pricing
Free Check
- Homepage check: SEO, AEO & GEO score
- Every issue found, with the points it costs
- Top 3 fixes as copy-paste code
- Private by default: never published
- Free JSON API for agents
Full Report
Fix it in about 20 minutes with copy-paste code.
Never touched code? Every fix is copy-paste, or forward the report to whoever runs your site.
- All fixes unlocked as copy-paste code, biggest wins first
- Step-by-step paste instructions for your website builder (Wix, Squarespace, Shopify, GoDaddy, WordPress or custom)
- Crawl of up to 10 pages with a per-page table
- Ready-made llms.txt, JSON-LD schema and robots.txt
- AI crawler access matrix (GPTBot, ClaudeBot, GrokBot…)
- PDF download
- Optional public badge (off unless you turn it on)
Frequently Asked Questions
What Is an AEO and GEO Checker?
AEO (answer engine optimization) and GEO (generative engine optimization) measure how easily AI assistants like ChatGPT, Claude, Perplexity, Grok and Google AI Overviews can find, understand and quote your site. ClickThisLink scores both alongside classic SEO.
How Do I Check if ChatGPT Can See My Website?
Paste your URL above. We check whether robots.txt allows GPTBot, ClaudeBot, PerplexityBot, Grok (xAI: GrokBot, xAI-SearchBot) and Google-Extended, whether you publish llms.txt, and whether your page has crawlable text and structured data.
Does It Work With Wix, Squarespace, Shopify, GoDaddy and WordPress?
Yes. The checker works on any public website. The full report detects which website builder you use and shows short, step-by-step paste instructions for Wix, Squarespace, Shopify, GoDaddy, WordPress or a custom site, including honest workarounds where a builder can’t do something (for example, GoDaddy and Squarespace don’t let you edit robots.txt).
What Is llms.txt?
llms.txt is a markdown file at the root of your site that gives large language models a short summary of your site and links to its most important pages, similar to how sitemap.xml helps search engines.
Is There an API for AI Agents?
Yes. Call GET /api/check?url=example.com to get JSON results. The OpenAPI spec is at /openapi.json and a plugin manifest is at /.well-known/ai-plugin.json.
Is My Check Private?
Yes. There are no accounts and no cookies, and your results are never published. If you tap Share Your Score, the link you send shows only the site name and its score. We keep a short cache of results (about 30 minutes) to keep the tool fast, plus anonymous daily totals like the number of checks. We never store IP addresses. Details are on the privacy page.
Is the Checker Free?
Yes, the instant check is free. The full report ($12.99 one-time) is available now through secure Stripe checkout: all fixes unlocked, step-by-step paste instructions for your website builder, a crawl of up to 10 pages, ready-made llms.txt and schema, a PDF, and an optional public badge.