Introduction
`llms.txt` has been discussed as a proposed way to provide language-model-friendly information about a website.
Because AI search is growing, some site owners assume the file is now required for SEO.
Google clarified its position in June 2026: `llms.txt` is not needed for Google Search and does not positively or negatively affect visibility or rankings there.
You can maintain the file for other systems if you have a reason, but it should not replace real SEO work.
What Is llms.txt?
`llms.txt` is a proposed text file convention intended to give AI systems a concise map or description of website resources.
It is conceptually different from robots.txt, which communicates crawler access rules.
Support varies by service.
Do not assume a proposed convention is universally consumed.
Google's Current Position
Google Search Central's June 2026 documentation update explicitly says the file is not needed for Google Search.
Google also says maintaining it will not help or hurt visibility or rankings in Google Search.
This applies to the idea that the file is required for AI Overviews or AI Mode.
Standard crawling, indexing and content quality remain the priorities.
Do Not Confuse It With robots.txt
robots.txt is a long-established crawler-control mechanism.
`llms.txt` does not replace robots.txt and should not be used as a security control.
If you need to restrict crawler access, use supported crawler directives and actual access controls where appropriate.
Keep each file's purpose separate.
Could Other Services Use It?
Yes, some tools or AI systems may choose to support the convention.
That is why Google says it is fine to maintain the file for other services.
Before investing time, check whether a service you care about actually reads it and what format it expects.
Do not maintain unnecessary infrastructure simply because it is popular on social media.
What Should You Prioritize Instead?
Make important pages crawlable and indexable.
Create useful original content, maintain strong internal links, expose accurate metadata and structured data where appropriate, and keep the site technically healthy.
For AI search, Google currently emphasizes the same fundamentals plus non-commodity and useful multimedia content.
Those improvements benefit users regardless of whether a new file convention gains adoption.
Should You Add llms.txt Anyway?
If it is easy to maintain and supports another service you intentionally use, adding it can be reasonable.
Do not present it to clients as a Google ranking tactic.
Keep the file synchronized with the real site if you choose to use it.
An outdated AI-facing map can be less useful than no map at all.
Frequently Asked Questions
Does llms.txt improve Google rankings? — Google currently says no; it has no positive or negative impact on Google Search visibility or rankings.
Is llms.txt required for AI Overviews? — Google says it is not needed for Google Search, which includes its generative Search experiences.
Is llms.txt the same as robots.txt? — No. robots.txt controls crawler access, while llms.txt is a separate proposed convention.
Should developers delete existing llms.txt files? — Not necessarily. Keep one if another service uses it, but do not treat it as a Google SEO requirement.