📄 Free tool

Perplexity llms.txt Checker

See whether Perplexity can find, read, and recommend your website. The Perplexity llms.txt Checker runs in your browser — enter a URL and we email you the report with the exact fixes.

Free · No signup · Report emailed in ~1 minute

What is the Perplexity llms.txt Checker?

The Perplexity llms.txt Checker checks whether your website serves a valid /llms.txt file and whether it contains the sections AI systems look for — a clear description, products or services, target audience, value proposition, and key links. You get a score and the exact llms.txt improvements by email.

What the Perplexity llms.txt Checker checks

  • Whether /llms.txt exists and is reachable at your domain root
  • A clear company or product description AI can quote
  • Products and services so AI can recommend you for the right queries
  • Target audience and unique value proposition for intent matching
  • Key URLs and contact details AI can cite
  • Formatting AI parsers expect (Markdown headings and structure)

How it works

  1. 1

    Enter your URL

    We look for /llms.txt at your domain root — paste any page on the domain.

  2. 2

    We validate the file

    We check that it exists and contains the sections AI systems expect to find.

  3. 3

    Get your report by email

    You receive a score plus a ready-to-adapt llms.txt outline for anything missing.

Frequently asked questions

What is an llms.txt file?

llms.txt is a plain-text Markdown file at your domain root that tells AI systems what your site is about, what you offer, and which URLs matter — a concise, machine-readable summary for large language models.

Where should llms.txt live?

At the root of your domain, served at https://yourdomain.com/llms.txt as text/plain, so AI crawlers can fetch it the same way they fetch robots.txt.

Does llms.txt help AI visibility?

It gives AI systems a clean, authoritative summary of your business instead of forcing them to infer it from raw HTML, which improves how accurately they can describe and recommend you.

Does Perplexity read my website?

Perplexity can only cite pages its crawler can reach and understand. The Perplexity llms.txt Checker checks the crawler-access, structure, and markup signals that decide whether Perplexity surfaces your site in its answers.

Also known as

The same free tool, by the names people search for it:

llms.txt Checkerllms.txt Validatorllms.txt Testerllms.txt Analyzerllms.txt Auditllms.txt File CheckerAI Guidance File CheckerChatGPT llms.txt CheckerClaude llms.txt CheckerFree llms.txt CheckerOnline llms.txt CheckerInstant llms.txt CheckerFree llms.txt ValidatorFree llms.txt Tester

More free AI visibility tools

🛰️

AI Visibility Checker

See how ChatGPT, Perplexity, Gemini, and Google AI Overviews find, read, and recommend your website — scored 0–100.

🤖

Robots.txt Tester

Test whether your robots.txt lets AI crawlers like GPTBot, ClaudeBot, and PerplexityBot reach your pages.

🧩

Schema Markup Checker

Validate the JSON-LD structured data on your page — Organization, FAQ, Product, Article, and more.

📖

AI Readability Checker

Measure whether AI models can cleanly extract answers from your content — headings, structure, and clarity.

Fix what the scan finds — automatically

CookMyRank turns every issue this tool surfaces into a deployable fix — schema, metadata, llms.txt, and content — that you approve before it ships.

See how it works