Question 1

What does the llms.txt Checker validate?

Accepted Answer

The checker validates 7 aspects of your llms.txt: whether the file exists at /llms.txt (critical), whether it has a # Site Name heading (high), a > description block (medium), at least one - [Label](URL) link (high), all links use HTTPS (medium), the file has ## section headings (low), and whether it is served as text/plain (medium).

Question 2

How is the llms.txt score calculated?

Accepted Answer

Each check has a severity weight: critical = 30 points, high = 20 points, medium = 10 points, low = 5 points. Your score is the percentage of weighted points earned from passing checks. A score of 80+ is good; below 60 means critical issues need fixing.

Question 3

What is the correct llms.txt format?

Accepted Answer

A valid llms.txt starts with # Site Name on the first line, followed by a > Description block. Pages are organised under ## Section headings as markdown links: - [Page Title](https://example.com/page). The file is served as text/plain at /llms.txt on your root domain.

What gets checked