What is the most common publishing mistake?

Putting the file somewhere other than the root URL of the main domain.

Can a file be technically live but still weak?

Yes. A file can load at the right URL while still pointing to thin, outdated, or noncanonical pages.

Because AI systems may still route through the file even when the linked pages no longer represent the current truth.

Check the live URL, the linked canonical pages, and the homepage clarity together rather than treating the file as a standalone win.

A fast list of publishing errors that make a file harder for crawlers and AI agents to use, even when a team thinks the file is already live.

Reference page By llmstxt.ca editorial Published May 24, 2026 Updated May 24, 2026

The most common failure is treating any upload URL like a valid implementation. The file belongs at /llms.txt on the primary domain.

If the summary is vague, slogan-heavy, or disconnected from the site’s actual pages, the file becomes less useful as a routing layer.

Do not send agents to old launch posts, thin overview pages, or outdated support pages when stronger canonical sources exist.

Outdated product names, moved URLs, and dead links turn the file into another layer of ambiguity.

The file can look fine while the underlying homepage, pricing, docs, and trust pages are still too vague to cite confidently.

Better path: build in the builder, test with the score page, then verify root access with the live-file test guide.