GEO outside China: Google AI Overviews, ChatGPT, Perplexity and Copilot

This guide is for site owners and marketing teams who want to appear in AI answers outside China: Google AI Overviews and AI Mode, ChatGPT search, Perplexity and Microsoft Copilot. It shows what each product documents about getting in, then the content and measurement work that applies to all of them. The access checks take a day or two. The content and coverage work is ongoing. Unlike in China, most of the entry rules here are documented by the platforms themselves.

The short version

1. Make sure Google can index your pages and show them with a snippet.
2. Allow OAI-SearchBot so ChatGPT search can show your site.
3. Allow PerplexityBot so Perplexity can show your site.
4. Get indexed in Bing and keep product data current for Copilot.
5. Write content that answers the sub-questions people actually ask.
6. Earn genuine third-party coverage, because answers lean on it.
7. Measure with Google’s and Bing’s reports, plus your own prompt sampling.

1. Google AI Overviews and AI Mode

Google’s AI features build on its normal search index. There is no separate application.

To be eligible as a supporting link in AI Overviews or AI Mode, a page “must be indexed and eligible to be shown in Google Search with a snippet”. No special schema.org markup or AI text files are required.

Officially documented · Google Search Central

nosnippet prevents content from being used as a direct input for AI Overviews and AI Mode, and max-snippet limits how much may be used.

Officially documented · Google Search Central

The Search generative AI control in Search Console excludes a site from AI Overviews, AI Mode and generative AI features in Discover.

Officially documented · Google Search Console Help

• Check key URLs with URL Inspection (URL Inspection tool).
• Look for stray nosnippet or max-snippet rules (Snippet controls for AI Overviews and AI Mode).
• Confirm the Search generative AI control isn’t set to exclude (Search generative AI control).
• Background: Google AI Overviews, AI search access audit.

2. ChatGPT search

ChatGPT search uses its own crawler token to decide which sites it may show.

OpenAI: “Sites that are opted out of OAI-SearchBot will not be shown in ChatGPT search answers, though can still appear as navigational links.” GPTBot is a separate token for training and does not affect search. Systems take about 24 hours to adjust after a robots.txt update.

Officially documented · OpenAI

• Allow OAI-SearchBot in robots.txt and at the CDN or firewall.
• Decide on GPTBot separately. Blocking it keeps you out of training, not out of search.
• Rules per token: Configure robots.txt for AI crawlers.

3. Perplexity

PerplexityBot surfaces and links websites in Perplexity’s search results. Perplexity-User fetches pages when users ask. “Since a user requested the fetch, this fetcher generally ignores robots.txt rules.”

Officially documented · Perplexity

• Allow PerplexityBot in robots.txt and at the firewall.
• Content that must stay private needs access control. robots.txt won’t stop user-triggered fetches.
• Side-by-side comparison of the three: Google AI features vs ChatGPT search vs Perplexity.

Every product has its own gate. A page that is open to Google but blocked for OAI-SearchBot is invisible in ChatGPT search, however good it is.

4. Microsoft Copilot and Bing

Copilot answers rest on Bing’s web data. Microsoft’s own GEO guide stresses classic search and accurate product data.

Microsoft’s GEO guide says Copilot breaks a shopping query down using crawled web data and product feeds. It adds that “traditional SEO remains essential because AI systems perform real-time web searches frequently throughout the shopping journey”.

Officially documented · Microsoft Advertising

• Verify the site in Bing Webmaster Tools and submit sitemaps (XML sitemaps).
• Consider IndexNow for fast updates to Bing (XML sitemaps vs IndexNow).
• If you sell products, keep price and stock identical in feeds, on-page markup and the visible page (Structured data and AI search).

5. Content that answers the sub-questions

Google documents that its AI features search several related questions at once. Pages that answer the specific sub-questions have more chances to be pulled in.

Google describes query fan-out: its AI features issue several related sub-queries across subtopics to find supporting pages. It warns that creating separate pages for every variation mainly to manipulate rankings or AI responses violates its scaled content abuse policy.

Officially documented · Google Search Central

• Cover the real decision questions in one solid page per topic, not one thin page per phrasing (Query fan-out).
• Put the answer near the top of each section, and state facts plainly (For content editors: writing articles AI answers can quote).
• Keep the main text in server HTML (JavaScript rendering and AI crawlers).

6. Third-party coverage

Answers often cite pages about you, not just your own site. How much depends on the assistant and category.

Google says its generative AI features can show what’s said about products and services across the web, including blogs, videos and forums. It adds that seeking inauthentic mentions “isn’t as helpful as it might seem”.

Officially documented · Google Search Central

In DATA17’s August 2026 sample of one AI assistant (72 prompts, 297 citations), 80.5% of cited sources were third-party sites. The most cited were structured category list pages, such as best-tools roundups.

Observed in practice · observed 2026-08 · DATA17 AI Research Lab · 解数智能 (unpublished report, not publicly available; readers can't check it)

This wiki’s re-test with consumer ChatGPT in another category found vendors’ own sites made up most citations, though list pages still led among third-party ones (Claim: seeding brand mentions across the web boosts AI visibility).

• Get listed accurately on the category comparison and review sites in your field.
• Earn coverage from trade press and real customers. Approach: PR and brand teams: how press, encyclopedias, Q&A sites and reviews shape AI answers.
• Keep Wikipedia-style and directory facts about you correct (When AI gets your brand wrong: find it, fix it, prevent it).

7. Measure with official reports and sampling

Google and Bing each give site owners a report. Neither shows rankings inside AI answers.

Search Console’s Generative AI performance report “shows data about how your site performs in generative AI features on Google Search”. It counts impressions in AI Overviews and AI Mode by page, country, date and device.

Officially documented · Google Search Console Help

Bing’s AI Performance report counts citations in Copilot and Bing AI answers. Microsoft: “It simply shows which content was cited.” Trend changes can’t be traced to a specific cause.

Officially documented · Microsoft Bing

Google: “No third-party tool has access to our internal ranking or AI systems.”

Officially documented · Google Search Central

ChatGPT and Perplexity offer no such report in the sources we track. Sample prompts there yourself (Measuring AI visibility by sampling prompts).

Use the two official reports for what they show, which is impressions and citations. Treat any tool that claims to see inside the ranking as selling a guess.

What not to do

• Don’t block GPTBot thinking it removes you from ChatGPT search. Search uses OAI-SearchBot (step 2).
• Don’t add nosnippet sitewide. It removes pages as direct input for AI Overviews (step 1).
• Don’t spin up a page per fan-out phrasing. Google calls that scaled content abuse (step 5).
• Don’t manufacture mentions. Google treats it as spam.

Google’s definition of spam includes “attempting to manipulate generative AI responses in Google Search.”

Officially documented · Google Search Central

See Claim: seeding brand mentions across the web boosts AI visibility and Google spam policies.

How you’ll know it’s working

• Google: rising impressions in the Generative AI report for the pages you worked on (Generative AI performance report: AI Overviews and AI Mode in Search Console).
• Bing: citations and grounding queries in AI Performance (Bing AI Performance report).
• ChatGPT and Perplexity: a fixed prompt set, run repeatedly, tracking mentions and cited URLs (Measuring AI visibility by sampling prompts).
• Verified crawler visits from each search bot in your logs (Verify AI crawler traffic in server logs). Reporting: For marketing leads: measuring GEO and reporting it upward.

Evidence at a glance

Recommendation	Evidence
Indexed and snippet-eligible for Google AI features	Official
Allow OAI-SearchBot and PerplexityBot	Official
Bing indexing and accurate product data for Copilot	Official
Cover sub-questions without page-per-variation	Official
Genuine third-party coverage	Official (Google) and observed
Measure with Search Console and Bing reports	Official
Prompt sampling for ChatGPT and Perplexity	Observed practice