LLMs.txt Generator & Validator
Introduce your website correctly to AI crawlers like ChatGPT, Claude, Perplexity and Gemini. Generate a standard llms.txt in seconds or validate your existing file.
Generate or validate
Use the Generator tab to build a file from scratch; use the Validator tab to check your live file.
The preview updates automatically as you fill in the fields on the left.
You decide how AI interprets your site
What robots.txt is for search bots, llms.txt is for AI systems. It defines which pages can be summarized, what can be used for training and what is restricted.
What is llms.txt?
llms.txt is a file that lets websites introduce themselves in a standard format to large language models like ChatGPT, Claude, Perplexity and Google Gemini. What robots.txt does for search bots, llms.txt does for AI systems.
Proposed in 2024 and adopted by major platforms like Shopify and Cloudflare as of 2025, this standard lives in your site's root directory (/llms.txt). It tells AI crawlers which pages can be summarized, which content can be used as training data and which sections are restricted.
Why do you need llms.txt?
An increasing share of web traffic comes from AI platforms. When a user asks ChatGPT "recommend a good Shopify agency in Turkey," the AI crawls the web to answer. If your site has no llms.txt, the AI interprets your content on its own; if it does, you guide that interpretation.
Three concrete benefits: (1) AI citation control — decide which pages are cited as sources in AI answers, and restrict checkout/account pages. (2) Training data management — explicitly define whether your content may be used in model training. (3) Brand identity conveyance — add company name, industry and target audience so the AI identifies you in the right context.
Policy options
| Policy | What can AI do? | Who prefers it? |
|---|---|---|
| Summarization Only | Summarizes, can't use for training | News sites, agencies, brands |
| Train & Summarize | Both summarizes and trains | Open source, academic content |
| No Training, Allow Index | Indexes/discovers; can't train | E-commerce, product catalogs |
You can also validate your existing llms.txt file with this tool. Enter your domain in the "Validator" tab; the tool lists syntax errors, missing required fields and policy conflicts.
llms.txt in four steps
Enter the Details
Fill in the company name, domain, description and industry. English is recommended for AI crawlers.
Choose a Policy
For e-commerce, "Summarization only" is usually preferred. You can disallow checkout/account pages.
Add Resources
Enter your sitemaps, important pages, products and posts; the preview updates instantly.
Download & Upload
Download the file and upload it to your server's root directory (/llms.txt).
Frequently asked questions
What people wonder about llms.txt and this tool.
01Won't AI crawl the site without llms.txt?
02Does llms.txt affect Google ranking?
03Where do I upload llms.txt for my Shopify store?
llms.txt.liquid template to your theme files, it can be published at yoursite.com/llms.txt. Nodus Works can do this integration as part of free consulting.04Do I need a separate file for multiple languages?
05Should I update llms.txt as content changes?
06Is my data sent to the server?
07Is the tool free?
Need help with the setup?
Nodus Works is an official Shopify agency in Turkey. From llms.txt integration to optimizing your entire e-commerce infrastructure, we can help.
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