The file is served but contains nothing. An empty llms.txt is worse than none at all: an assistant requests it, gets a valid response, and learns nothing, when it could have spent that request discovering your pages another way.
/llms.txt returns 200 with an empty or whitespace-only body.
Fill it in, or remove it so assistants fall back to your sitemap and links:
# Example Corp
> One sentence describing what this site is.
## Documentation
- [Getting started](https://example.com/docs/start)
A file that exists is treated as authoritative. Making it say something real is what turns the request into useful information.
This issue can affect your site's search engine rankings and user experience. Addressing it promptly helps ensure optimal performance and visibility in search results.
bseoa automatically checks for this warning during site analysis, along with hundreds of other technical SEO issues.
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