Check your llms.txt

Analyze your site’s /llms.txt against AI standards. Spot format issues in seconds with llms.txt error detection.

What Is the llms.txt Checker Tool?

The llms.txt checker validates your site’s /llms.txt file against the format recommended for large language models and AI systems. While robots.txt and sitemap.xml guide search engines, llms.txt gives AI a structured overview of your key pages, docs, and resources. Spindora’s free checker fetches /llms.txt in seconds, scores compliance 0–100, and lists issues without mandatory sign-up.

The llms.txt standard expects a single H1 at the top, a blockquote summary, and H2 sections with markdown link lists. This helps ChatGPT, Claude, Perplexity, and similar systems understand your site faster. Spindora’s /llms-txt-kontrol-araci page is built for teams adopting GEO (Generative Engine Optimization) who need reliable llms.txt error detection.

A professional llms.txt file must be accessible, correctly typed, and well structured. Wrong Content-Type, HTML error pages, or missing H1 directly hurt AI visibility. Our checker evaluates HTTP status, headings, links, and optional sections with clear error, warning, and info labels.

Use our Free SEO Analysis Tool alongside this checker to strengthen both search and AI signals.

How to Run an llms.txt Check

Enter your website URL, complete human verification, and press CHECK. The tool fetches /llms.txt, parses it, and shows score, findings, and recommendations on the same page. You get three free checks per week; when the limit is reached, sign up for a Spindora account for more monthly quota.

What Does the Checker Validate?

File accessibility, H1 structure, blockquote summary, H2 sections and links, link format quality, detail content, and Optional section — each contributes to the weighted 0–100 score.

Why Use the llms.txt Checker?

Step-by-step usage:

Enter domain or full URL.
Complete human verification.
Press CHECK and review score, findings, and recommendations.

Manual checks are slow and inconsistent. This tool standardizes validation, speeds up agency reporting, and helps teams prioritize GEO fixes before investing in larger platforms.

Most Common Questions

An llms.txt checker automatically validates your /llms.txt file against AI-oriented standards. Spindora’s free tool delivers score, issues, and recommendations from any public URL without sign-up.

Enter the URL, complete verification, and press CHECK LLMS.TXT. Results appear on the same page with score and findings.

It checks file accessibility, H1, blockquote summary, H2 sections, link format, detail content, and Optional section — summarized in a 0–100 score.

You get 3 free llms.txt checks per week without sign-up. When the limit is reached, create a free Spindora account for monthly quota.

llms.txt introduces your key pages and docs to AI systems in a structured way. Correct format is critical for GEO and AI visibility.

Fix critical errors first, upload the file, and re-check after a few minutes. Use the suggested code examples to apply fixes quickly.

Yes. Spindora’s llms.txt checker is free with a weekly quota. Sign up for free for more checks.

The score is a weighted average of file access, H1, blockquote, H2 links, link quality, and Optional section. 80+ is generally good.