Answer engine optimization · Guide

Why isn’t my website showing up on Google AI Overviews or Gemini?

Updated May 25, 2026 · 8 min read

Google has two AI surfaces a regular user sees: AI Overviews (the AI-generated answer at the top of search results) and Gemini (the standalone chatbot). Both ground in Google’s index — but only if you’ve opted in to AI uses with a separate control most site owners don’t know exists.

The short answer

Google maintains two independent permissions: Googlebot (for search indexing) and Google-Extended (for AI uses). If you’re indexed but not in AI Overviews, the most likely cause is that Google-Extended is blocked — explicitly or by accident — alongside the usual content and structure issues.

1. Google-Extended is blocked

The single Google-specific issue: Google-Extended is a product token Google honours in robots.txt. It controls whether your content can be used to ground answers in AI Overviews and Gemini, independent of whether Googlebot can index your pages for normal search.

A typical mistake: a site adds Disallow: / under User-agent: Google-Extended to "opt out of AI" and then wonders why they don’t appear in AI Overviews. The allow-rule is:

User-agent: Googlebot
Allow: /

User-agent: Google-Extended
Allow: /

Confirm the same isn’t being overridden at your CDN or firewall layer.

2. You’re not actually indexed in Google

AI Overviews ground in Google’s search index. If a page isn’t indexed for normal search, it can’t appear in AI Overviews either. Check Search Console → URL Inspection for any page you expect to be cited.

Common causes of non-indexing: noindex headers, a page accidentally orphaned from internal links, a sitemap that omits it, or a recent launch that hasn’t been discovered yet.

3. The page doesn’t answer the question directly

Ranking #1 in classic Google does not guarantee a citation in the AI Overview that sits above the blue links. AI Overviews pick sources by answer fit:

H1 as the question.
Lead paragraph as a direct, 2-3 sentence answer.
Sub-questions as H2s with their own concise answers below.

The classic SEO playbook of long intros, related-but-tangential context, and a buried answer hurts you in AI Overviews even when it helps in classic search.

4. Missing structured data

JSON-LD is more important for Google’s AI surfaces than for almost any other engine, because Google’s pipeline was built around it for a decade of rich results. At minimum:

Article with author, datePublished, dateModified.
Organization sitewide with sameAs social links.
FAQPage on Q&A content (often picked verbatim for AI Overview snippets).

Validate with Google’s Rich Results Test before shipping any schema changes.

5. Thin trust signals

Google has spent years building E-E-A-T (Experience, Expertise, Authoritativeness, Trustworthiness) into its ranking, and AI Overviews inherit that intuition. Anonymous, undated content loses to bylined, dated content even when the words are nearly identical.

Add a real author byline, link it to an author page, and mirror the publish/update dates in JSON-LD. Cite primary sources where you make claims. Make your Organization schema consistent across every page so Google has a stable entity to anchor citations to.

Bonus: AI Overviews vs Gemini Apps

Both ground in Google’s index and both respect Google-Extended. Differences worth knowing:

AI Overviews serve traffic from people who search Google. Citations are inline with the answer. Often displays as a 3-source list under the synthesised answer.
Gemini Apps serve traffic from people who opened the Gemini chatbot. The grounding model is the same, but the answer length and citation style differ; fewer sources, longer prose.

You don’t optimise differently for these two surfaces — they share the index and the AI opt-in.

How to check if your site is the problem

The fastest way is to scan it. The form below checks Google-Extended access, indexability, structured data, and content shape — the same rules described above.

AI & Search Engine Visibility

Show up in ChatGPT, Claude, Perplexity, and on Google.

ShowUp grades your site for both AI assistants (AEO) and classic search (SEO) in a single scan — with a prioritized action plan ranked by effort.

Related guides

Frequently asked questions

What is Google-Extended?

Google-Extended is a separate user-agent product token Google honours in robots.txt and in the X-Robots-Tag header. It controls whether Google can use your content to ground answers in Bard/Gemini and in AI Overviews. It does not affect normal Google Search ranking — Googlebot handles that independently.

Will blocking Googlebot remove me from AI Overviews?

Yes — and from Google Search entirely. That's almost never what you want. The right control is Google-Extended, which lets Googlebot keep indexing your pages while opting out of AI uses specifically. If you want to be in AI Overviews, allow both.

How is Gemini different from AI Overviews?

AI Overviews are the AI-generated answer boxes at the top of Google Search results. Gemini is Google's standalone chatbot. Both ground in Google's index and both respect Google-Extended — so the technical opt-in is the same. The user-facing surfaces are different.

Does ranking #1 in Google guarantee I'll be cited in AI Overviews?

No. AI Overviews pick sources based on answer fit, not raw ranking. A page that ranks 8th but directly answers the question in 2 sentences often beats a page that ranks 1st but buries its answer. Answer-shaped content matters more for AI Overviews than for the blue-link results above them.

Does Google-Extended apply to Vertex AI Search and Gemini API?

Per Google's documentation, Google-Extended controls grounding for Bard, Gemini Apps (the consumer products), and Vertex AI Agents that ground on Google Search. It does not block your content from being indexed for traditional search or from being available via Google Search Console.

How long does it take to show up after fixing things?

If you've been blocking Google-Extended, allow it and wait for Google's next recrawl — typically days. Structured-data and content fixes propagate at the same speed. New pages that need to be discovered take longer; submit them in Search Console to speed it up.

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