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To help people and search systems find and understand your pages, make important content crawlable, manage indexing and previews with the right directives, and explain the subject clearly in visible text. Google says its existing SEO fundamentals apply to AI Overviews and AI Mode; it does not require llms.txt or special AI markup for those features. None of these steps guarantees indexing, rankings, or inclusion in an AI answer.
How do you make a site discoverable and crawlable?
Discovery, crawling, and indexing are separate steps. Search systems first need to find a URL, then may request and process its content, and may later decide whether to include it in an index or show it in results. A setting that affects one step does not automatically control the others.
Help crawlers find important pages
Googlebot discovers URLs primarily through links on pages it has already crawled. Link to important pages from relevant parts of your site, and make sure those links and the essential page content are available in the version search systems receive. Google says most Search indexing uses the mobile version of a page, so check that mobile rendering preserves important text and links. See Google’s Googlebot documentation.
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Use robots.txt to manage crawl requests, not to hide content
A robots.txt rule tells a crawler which paths it may request. It does not remove a URL from Google’s index or guarantee that the URL will not appear in Search. Google may discover a blocked URL through links and show it without a crawled description. If your goal is to ask Google not to index a page, Google documents the noindex directive for that purpose; Googlebot must be able to crawl the page to see the directive.
Robots directives are not a privacy control. If content must be inaccessible to visitors as well as crawlers, protect it with authentication or another access-control mechanism rather than relying on robots.txt.
Does Google require llms.txt or special markup for AI Overviews?
No. For Google Search AI features, Google says publishers do not need a new machine-readable file, AI text file, or special schema.org markup. Google Search Central states: “You don’t need to create new machine readable files, AI text files, or markup to appear in these features.” In that statement, “these features” means the Google Search AI features covered by its guidance, not every independent AI service. Google’s separate generative-AI guide also says Google Search does not use llms.txt or similar special files to qualify pages for generative features. See Google’s AI features guidance and its generative AI guide.
Google says its established SEO fundamentals remain relevant to AI Overviews and AI Mode. The practical work is to allow crawling, connect important pages with internal links, make key information available as text, provide a useful page experience, and keep structured data consistent with visible content. Google does not guarantee that an indexed page will be served in Search or included in an AI feature.
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How should publishers decide which AI crawlers to allow?
Decide separately about search-related crawling and training-related crawling. OpenAI documents two distinct controls: OAI-SearchBot for search-related discovery and GPTBot for training-related crawling. A publisher may want search discovery while making a different decision about training use; one robots.txt choice should not be assumed to express both preferences.
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OpenAI’s documentation says that when both bots are allowed, OpenAI may use one crawl for both uses to avoid duplicate crawling. Review the current OpenAI crawler documentation before setting a policy, since crawler behavior and vendor policies can change. A robots rule communicates a crawler preference; do not treat it as a universal guarantee about how any system will use content beyond what its provider documents.
How do you manage indexing and search previews?
Choose a directive based on the outcome you want. To ask Google not to index a page, use noindex and allow Googlebot to fetch the page so it can read that instruction. To manage what may be shown in a search preview, Google documents nosnippet, data-nosnippet, and max-snippet. These controls concern indexing or presentation; none substitutes for access control when information must remain private.
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After changing a directive, use Search Console’s URL Inspection tool to check the fetched page and confirm that Googlebot received the intended instruction. Allow time for recrawling and processing before judging the result. Google’s Googlebot documentation explains the distinction between crawl access and indexing.
What makes a page understandable to people and automated systems?
Put the important information in clear, useful visible text. Give a page a focused subject, explain its terms and relationships, and organize it so readers can locate the answer they need. Internal links help connect related pages and show how important information fits within the site. Clear content supports comprehension; it does not guarantee that a search engine or AI system will select or cite it.
Use structured data only when it matches the page
Structured data can describe visible content and may support search features when it meets their requirements. It is not a switch that forces a page into AI answers. Keep markup accurate and consistent with what visitors can see, and do not add claims or entities that the page does not substantiate. Google’s AI features guidance specifically emphasizes consistency between structured data and visible content.
Quick Recap
What should you check before publishing?
- Check discovery: confirm important pages have relevant internal links and that those links are available on mobile.
- Check crawl access: review robots.txt and any CDN or hosting rules that could prevent crawlers from fetching intended pages.
- Choose the right outcome: use crawl permissions to control requests, indexing directives to communicate index preferences, preview controls to manage snippets, and authentication to protect private content.
- Review AI crawler preferences: decide on search-related and training-related crawling separately, using each provider’s current official documentation.
- Validate the page itself: ensure important information is visible as text and structured data accurately describes that content.
- Verify Google’s view: use Search Console’s URL Inspection tool after directive or access changes, then allow time for recrawl and processing.
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