Comparison

llms.txt vs robots.txt

These files solve different problems. robots.txt is about crawler access and discovery. llms.txt is about preferred public references. Treating one as a substitute for the other leads to shallow fixes.

llms.txt hub Run a fresh scan

robots.txt

Access and discovery hint

llms.txt

Canonical reference hint

Both still need

Strong page architecture

Compare

Where each file helps

robots.txt

Use it when the problem is crawler access or sitemap discovery.

Allow or disallow paths

Point to sitemap.xml

Reduce accidental crawling of noisy URL patterns

llms.txt

Use it when the problem is “which public pages should models prefer?”

Highlight canonical docs or setup pages

Prefer pricing and trust pages over stale campaign pages

Reduce ambiguity around your best public sources

Neither file replaces

If the problem is weak architecture, both files are only support layers.

internal linking

canonical tags

clear hubs and leaf pages

trustworthy page content

Use them together

A practical decision rule

If crawlers should or should not touch a path, that is a robots.txt decision.

If a page should be listed as an important canonical URL, that is a sitemap decision.

If assistants should prefer one set of public references over another, that is an llms.txt decision.

If users and models still get confused, the real issue is usually page architecture, not file configuration.

Continue through the cluster

llms.txt hub

See the generator, examples, and guidance around canonical machine-readable pages.

Agent readiness hub

Start from the core concept, then branch into checklists and comparisons.

Agent readiness checklist for docs sites

A checklist focused on canonical docs structure, navigation, and citations.

Next step

Use the distinction in a real site review

The value of this comparison is operational. It helps you decide whether the next fix belongs in robots, sitemap, llms, or the page architecture itself.

Agent readiness checklist for SaaS Run a fresh scan