SEO · Updated · 17 min read

AI Search Optimization in 2026: How to Get Cited by Google, ChatGPT and Perplexity

How AI Overviews, ChatGPT and Perplexity choose their sources, what GEO and AEO mean, and eight steps to get cited, from crawler access to brand mentions, with sourced 2026 data.

By Orbital Technologies

AI search optimization: the OpenAI, Perplexity and Google Gemini marks, with a guide to getting cited in 2026.

Short answer: AI search optimization is the work of getting your business found, cited and recommended inside AI answers: Google's AI Overviews and AI Mode, ChatGPT, Perplexity, Gemini and Copilot. These tools pull their answers from pages they can crawl, understand and trust, so the job comes down to five things: let the right crawlers in, rank in normal search, write passages that answer questions directly, make it obvious who you are, and get mentioned on sites people already trust.

There is no secret file or special markup. Google's own guide for site owners, updated in July 2026, says you do not need "new machine readable files, AI text files, markup, or Markdown" to appear in its AI features. What has changed is the scale. ChatGPT reached 900 million weekly users in February 2026, Google's AI Mode passed 1 billion monthly users by July, and the top organic result now gets 58% fewer clicks when an AI Overview sits above it.

What is AI search optimization?

AI search optimization means shaping your website and your wider reputation so that AI search tools choose your pages as sources and name your business in their answers. Traditional SEO aims for a ranked blue link. Here the aim is a citation inside a written answer, a mention of your brand when someone asks "who should I hire for this?", or a link in the sources panel beside the reply.

It is not a separate discipline that replaces SEO. AI tools still search the web before they answer. Google's AI Overviews draw on Google's index, ChatGPT search combines OpenAI's own crawler with outside search providers, and Perplexity runs its own crawler and index. A page that cannot be crawled, indexed or understood will not be cited by any of them. Think of it as SEO with three extra concerns: how your passages read when lifted out of the page, how clearly machines can identify your business, and what other sites say about you.

What is AI search optimization called? GEO, AEO, LLMO and AI SEO

The industry has not settled on a name, which is why you see several acronyms for broadly the same work. In a September 2026 survey of 160 marketers by the agency Koozai, "AI search optimisation" was the most preferred term at 32%, followed by generative engine optimization (GEO) at 19% and AI SEO at 18%.

TermWhat it usually meansWhere you hear it
AI search optimizationThe umbrella term: visibility in AI Overviews, AI Mode, ChatGPT, Perplexity and other assistantsClients, managers, most agencies
Generative engine optimization (GEO)Optimizing content to be used and cited by generative AI answers. The name comes from a 2023 research paper led by Princeton researchersResearchers, SEO specialists
Answer engine optimization (AEO)Getting your content chosen as the direct answer, originally for featured snippets and voice assistants, now for AI answers tooContent and SEO teams
LLM SEO or LLMOInfluencing how large language models describe your brand, including in chat tools that do not search the web for every answerTechnical SEOs, startups
AI SEOUsed two ways: optimizing for AI search, or using AI tools to do SEO work fasterSoftware vendors, job titles

The labels matter less than the work. Whichever term your team uses, the tactics below are the same, and they sit on top of an SEO program rather than beside it.

AI search optimization by the numbers

Most guides on this topic argue from opinion. These are the figures that matter in 2026, each linked to the study or announcement it comes from.

MeasureFigureSource
ChatGPT weekly active users900 million (February 2026)TechCrunch, 2026
Google AI Mode monthly active usersOver 1 billion; the Gemini app has 950 millionAlphabet Q2 2026 remarks
Click-through rate of the top organic result when an AI Overview shows58% lower (300,000 keywords, December 2025 data)Ahrefs, 2026
US Google searches ending without a click68%, January to April 2026SparkToro via Search Engine Land
Visits where people clicked a normal result8% with an AI summary on the page, 15% without; 1% clicked a link inside the summaryPew Research Center, 2025
Pages cited in AI Overviews that also rank in the top 1038% (March 2026), down from 76% in July 2025Ahrefs, 4 million citations
Strongest factor linked to brand mentions in AI OverviewsBranded web mentions (correlation 0.664) against backlinks (0.218)Ahrefs, 75,000 brands
AI platforms' share of all website traffic0.32% in 2026, up from 0.02% in 2024; ChatGPT sends 74.78% of itSE Ranking, 101,574 sites
AI search visitors at one software company0.5% of visitors but 12.1% of sign-upsAhrefs, 2026
Visibility gain from the best GEO methods in testingUp to 40%; keyword stuffing made results about 9% worseAggarwal et al., KDD 2024
AI search in 2026 by the numbers: ChatGPT has 900 million weekly users; the top organic result gets 58% fewer clicks when an AI Overview appears; and only 38% of pages cited in AI Overviews rank in the top 10, down from 76% in July 2025.
Three numbers that explain why ranking alone is no longer the whole job. Sources: TechCrunch, Ahrefs.

Read together, the numbers say two things. AI answers now sit between your customer and your website for a large share of searches, so fewer people click. And the pages those answers cite are no longer simply the top ten results, so ranking well is necessary but no longer enough. The traffic AI tools send is still small, under half a percent of visits on average, but it tends to arrive further along the buying journey.

How does AI search engine optimization work?

Each tool works differently, but the pattern is similar. When someone asks a question, the AI turns it into several related searches (Google calls this "query fan-out"), retrieves pages from an index, picks the passages that best answer each part, writes a summary, and links some of the sources it used. Two things follow from that process:

  • If a page is not in the index, it cannot be cited. Crawl access, indexing and page speed matter as much as they ever did.
  • Passages are judged, not just pages. Because the AI runs several searches per question, a page can be cited for one clear paragraph that answers one part of the question, even if it does not rank for the main query. That is one reason the overlap with the top ten has fallen.

The main AI search tools, and what each one relies on:

ToolWhere its sources come fromCrawler to allowHow to measure it
Google AI Overviews and AI ModeGoogle's search indexGooglebotSearch Console's generative AI performance report
ChatGPT searchOpenAI's crawler plus search partnersOAI-SearchBotReferrals from chatgpt.com in your analytics
PerplexityPerplexity's own indexPerplexityBotReferrals from perplexity.ai
Microsoft Copilot and BingBing's indexBingbotBing Webmaster Tools AI Performance report

AI search optimization vs traditional SEO

Most of the groundwork is shared. What changes is the unit of success, the signals that carry extra weight, and how you measure the result.

Traditional SEOAI search
GoalA high ranking and a clickA citation or a brand mention inside the answer
Unit that winsThe pageThe passage, plus the brand behind it
QueriesShort keywords, often 2 to 4 wordsLong, conversational questions split into many sub-searches
Trust signalsLinks, relevance, page experienceThe same, plus mentions of your brand across the web
RenderingGoogle renders JavaScriptMost AI crawlers read the raw HTML only
MeasurementRankings, clicks, conversionsImpressions in AI features, citations, referrals, share of answers

That is why SEO for AI search belongs inside one SEO plan: the pages that earn rankings are the ones that earn citations.

How to rank in ChatGPT, AI Overviews and Perplexity: 8 steps

These steps run in order. Skipping the first two is the most common reason good content never appears in AI answers.

Eight steps to get cited by AI search: let the right crawlers in, serve content without JavaScript, rank in normal search first, write passages that answer the question, add original data and sources, make it clear who you are, earn mentions beyond your site, and measure what AI search sends you.
The eight steps covered below, in the order to run them.

Step 1: Let the right crawlers in

Each AI company runs its own crawlers, and robots.txt controls them separately. Several companies run one crawler for search and another for model training, so you can appear in AI answers without letting your content be used for training.

CrawlerCompanyWhat it does
GooglebotGoogleNormal Google Search crawling. AI Overviews and AI Mode use the same index, so blocking Googlebot removes you from all three.
Google-ExtendedGoogleControls use of your content for training and grounding in some other Google AI products. It is not the control for AI Overviews.
OAI-SearchBotOpenAISurfaces sites in ChatGPT search. OpenAI says sites that opt out will not be shown in ChatGPT search answers, and robots.txt changes take about 24 hours to apply.
GPTBotOpenAICollects content that may be used to train OpenAI's models. Blocking it does not affect ChatGPT search.
ChatGPT-User and Perplexity-UserOpenAI, PerplexityFetch a page when a user asks for it. Both companies say robots.txt rules may not apply, because a person started the request.
PerplexityBotPerplexitySurfaces and links sites in Perplexity's answers. Perplexity says it is not used to train AI foundation models.
AI crawlers grouped by job. Search crawlers: Googlebot, OAI-SearchBot and PerplexityBot. Training and other AI crawlers: GPTBot and Google-Extended.
Search crawlers decide whether you appear in AI answers; training crawlers do not.

Then check the layers above robots.txt. In July 2025 Cloudflare changed its default to block AI crawlers on new sites unless the owner opts in, and other CDNs and hosts offer similar one-click blocks. A broad block can catch search crawlers along with training ones and take you out of ChatGPT and Perplexity without anyone on your team noticing.

Step 2: Serve your content without JavaScript

Google renders JavaScript, but most AI crawlers do not. When Vercel analysed AI crawler traffic across its network in December 2024, it found that none of the major AI crawlers, including GPTBot, ClaudeBot and PerplexityBot, rendered JavaScript. If your prices, product details or article text only appear after scripts run, those crawlers see an empty page.

The fix is server-side rendering or static HTML for anything you want cited. To test, view the raw page source and check the main content is there. Our web development team builds sites this way by default, because it helps Google and page speed as well.

Step 3: Rank in normal search first

Google's guidance is blunt: there are no extra requirements to appear in AI Overviews or AI Mode beyond being indexed and eligible to show a snippet. Ranking still helps a great deal, because AI tools search before they answer and strong pages are easier to find. But Ahrefs found that only 38% of pages cited in AI Overviews in March 2026 also ranked in the top ten for the query, half the share of a year earlier. Treat good rankings as the entry ticket, and the steps below as what gets you chosen.

If the technical basics have not been checked in a while, our technical SEO audit checklist walks through 35 checks in order.

Step 4: Write passages that answer the question

A woman at a wooden desk writing notes in a notebook beside an open laptop, planning content.
Answer first, then explain: the same habit serves busy readers and AI answers. Photo: Ivan S on Pexels.

This is where most sites can gain the most. Write so that any section could be quoted on its own and still make sense:

  • Answer first. Open the page, and each main section, with a one or two sentence answer. Explain and qualify after that.
  • Use the question as the heading. "How much does a website cost?" matches a question far better than "Our approach to investment".
  • Keep the subject in the sentence. "Core Web Vitals measure loading speed, responsiveness and layout stability" can be quoted alone. "They measure three things" cannot.
  • Use lists and tables for comparisons. Structured comparisons are easy to extract and easy to read.
  • Date your facts. "In 2026" or "as of March" tells a reader, and a model, that the figure is current.

You do not need to chop pages into tiny fragments. Google's guide says there is no requirement to break content into small pieces, because its systems can find several topics on one page. Write at the length your reader needs, with clear headings.

Step 5: Add original data and name your sources

The research that coined generative engine optimization tested nine ways of rewriting web content and measured how often AI answers used it. Adding quotations from credible sources lifted visibility by about 41%, adding statistics by about a third, and citing sources by about 28%. Keyword stuffing made visibility worse. Google says the same in plainer words: content that is unique and useful, rather than a rewrite of what everyone else says, is what earns a place in its AI features.

In practice: publish numbers you own (prices, survey results, project timelines, benchmarks), quote named experts, and name the source of every statistic in the sentence itself.

Step 6: Make it clear who you are

AI tools try to recognise the business and people behind a page, and they are more likely to trust a source they can place. Make yours easy to place:

  • Use the same business name, description, address and contact details on your site, your Google Business Profile, directories and social profiles. Our guide to Google Business Profile optimization covers the local side.
  • Have a proper About page that says what you do, for whom and where.
  • Show who wrote each article and why they know the subject.
  • Add Organization structured data to your home page. Google says no special schema is needed for its AI features, but structured data that matches your visible content makes the basic facts unambiguous for every system that reads it.

Step 7: Earn mentions beyond your own site

In Ahrefs' study of 75,000 brands, the factor most closely linked to appearing in AI Overviews was how often a brand was mentioned on other websites, with a correlation of 0.664. Branded anchor text came next at 0.527 and branded search volume at 0.392. Raw backlink counts trailed at 0.218.

Bar chart of the correlation between search factors and brand mentions in Google AI Overviews: branded web mentions 0.664, branded anchors 0.527, branded search volume 0.392, referring domains 0.295, backlinks 0.218.
Mentions of your brand across the web track AI visibility more closely than raw link counts. Source: Ahrefs study of 75,000 brands, 2025.

Correlation is not proof of cause, but the pattern makes sense: AI answers draw on reviews, forums, comparison articles and news, so a business that others talk about gets named. Practical ways to earn those mentions: keep review profiles active and reply to reviews, answer questions in the communities your customers use, publish original data others want to reference, and pitch expert comment to trade publications. Google also warns against "inauthentic" mention schemes, so paid placements dressed up as opinion are a risk, not a shortcut.

Step 8: Measure what AI search sends you

  • Google Search Console: since June 2026, Search Console has a generative AI performance report showing how often your URLs appear in AI Overviews, AI Mode and Discover, by page, country, device and date. Google rolled it out to all sites on 31 August 2026. It shows impressions only, not clicks, so pair it with your normal performance report.
  • Bing Webmaster Tools: its AI Performance report, launched in February 2026, counts how often your pages are cited in Copilot and Bing's AI summaries, and shows sample "grounding queries", the searches the AI ran before citing you.
  • Your analytics: set up a channel or segment for referrals from chatgpt.com, perplexity.ai, gemini.google.com and copilot.microsoft.com, and track leads from it, not just visits.
  • Spot checks: ask the tools the questions your customers ask, note who gets cited, and repeat monthly, since answers change.
Bar chart of AI platforms' share of all website traffic: 0.02% in 2024, 0.24% in 2025 and 0.32% in 2026, a sixteenfold rise in two years.
AI referrals are still small, but they grew sixteenfold in two years. Source: SE Ranking, 101,574 websites, 2026.

AI search keyword research and gap analysis

Keyword research still works, but the questions are longer and the competition is for a mention, not a position. A simple process for a small team:

  1. Collect the questions. Pull long, question-style queries from Search Console, the People Also Ask boxes for your main topics, Bing's grounding queries, and the questions your sales team hears every week.
  2. Turn them into prompts. Write 20 to 50 prompts the way a customer would ask an assistant, such as "best accounting firm for a small online shop in Manchester" or "is a WMS worth it for 500 orders a day".
  3. Run a gap analysis. Ask each prompt in ChatGPT, Perplexity, Gemini and Google's AI Mode. Record which brands and pages are cited. Where competitors appear and you do not, check whether you have a page that answers that exact question, and whether third-party sites mention you for it.
  4. Fill the gaps in order. First the pages you are missing, then clearer answers on pages you already have, then the outside mentions.

For most small businesses, a monthly spreadsheet of 30 prompts is enough to see whether the work is moving anything.

What are the best AI search optimization tools?

The best starting tools are free, because they come from the search engines themselves. Paid trackers are worth it once you need to monitor hundreds of prompts or report to a board.

ToolCostWhat it tells you
Google Search ConsoleFreeImpressions in AI Overviews, AI Mode and Discover by page
Bing Webmaster ToolsFreeCitations in Copilot and Bing AI answers, plus grounding queries
Google Analytics 4 or similarFreeVisits and leads from ChatGPT, Perplexity, Gemini and Copilot
Server logs or your CDN dashboardUsually includedWhether AI crawlers are reaching your pages, or being blocked
Ahrefs Brand Radar, Semrush AI toolkit, Profound and similarPaidBrand mentions and citations across many prompts, against competitors

People also ask which AI is best for search engine optimization work itself. General assistants such as ChatGPT, Gemini and Claude are useful for drafting outlines, grouping keywords, writing schema and summarising competitor pages. None of them replaces checking facts against primary sources, and Google's guidance warns against mass-producing pages with AI, which falls under its spam policy on scaled content.

What is the 30% rule for AI?

The "30% rule" is an informal rule of thumb, not a standard or a Google policy, and different writers define it differently. The most common version says to let AI handle around 30% of repetitive, rule-based work and keep the rest for human judgment; others flip the split. For search content the useful lesson is the same either way: AI can speed up research and drafting, but a person who knows the subject should own the facts, the examples and the final edit. Pages that read like everyone else's are exactly what AI answers skip.

What not to bother with

  • Special AI files. Google says it does not use files such as llms.txt for Search, so they will not get you into AI Overviews. Some sites publish one for other tools; it does no harm, but there is no published evidence it earns citations.
  • Rewriting everything "for AI". Google lists this as unnecessary. Clear writing for people is what gets cited.
  • Mass-produced AI content. Hundreds of thin pages break Google's scaled content policy and rarely make good sources anyway.
  • Tools that promise a ranking. Google warns that no third-party tool can see its internal AI systems.

Is SEO dead because of AI search?

No. AI tools find their sources by searching the web, so the businesses that rank, publish clear answers and are talked about are the ones that get cited. What has changed is that simple questions are increasingly answered without a click. The response is to target questions where people want detail, comparison or a provider, and to judge the work on leads rather than raw traffic. Our comparison of SEO vs PPC shows how AI Overviews changed the economics of both channels.

Who should make AI visibility a priority?

A team at a meeting table while one person holds a tablet showing a digital marketing donut chart.
Decide the priority from how your customers research, not from the hype. Photo: Mikael Blomkvist on Pexels.
Your situationPriorityWhere to start
B2B, SaaS or professional services; buyers research and compareHighComparison pages, original data, mentions in trade press and review sites
Publishers and information sites that rely on informational clicksHighMeasure the click loss, then build pages people still need to visit: tools, data, depth
Ecommerce storesMedium to highServer-rendered product data, reviews, Merchant Center feeds, buying guides
Local service businessesMediumGoogle Business Profile, reviews, consistent listings, clear service and area pages
New sites with little trafficLower, for nowFix the technical basics and earn rankings first; AI visibility follows

If you run a small business, our guide to SEO for small business covers the groundwork in the right order.

3 tips to get cited faster

  1. Audit your crawler access this week. Check robots.txt, your CDN's bot settings and your logs for OAI-SearchBot, PerplexityBot and Bingbot. It takes an hour and it is the most common silent failure.
  2. Rewrite your top ten pages answer first. Put a two sentence answer under each heading, add a dated number with a named source, and make sure the text is in the raw HTML.
  3. Track 30 prompts every month. Record who gets cited for the questions your customers ask, and use the gaps to decide which page to write or which publication to pitch next.

Our verdict on AI search optimization

AI search optimization is not a replacement for SEO and not a trick. It is SEO done with more care for three things: whether AI crawlers can actually read your pages, whether each passage answers a question on its own, and whether the rest of the web vouches for your business. The traffic is still small, but it converts, and the share of searches answered by AI is only growing. Start with access and the basics, then spend most of your effort on original, clearly written answers and on being mentioned where your customers already look.

Our SEO services cover all eight steps as one program, with monthly plans from $1,200, and our guide to how much SEO costs explains what agencies, consultants and freelancers typically charge.

AI search optimization FAQs

What is AI search optimization?
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AI search optimization is the work of getting your pages cited and your brand mentioned in AI answers from Google AI Overviews and AI Mode, ChatGPT, Perplexity, Gemini and Copilot. It builds on SEO and adds clear, quotable passages, strong entity signals and mentions on other trusted sites.
What is AI search optimization called?
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It goes by several names: generative engine optimization (GEO), answer engine optimization (AEO), LLM optimization (LLMO) and AI SEO. In a 2026 Koozai survey, AI search optimisation was the most preferred term at 32%, ahead of GEO at 19%.
What is search optimization in AI?
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It means making content easy for AI search tools to find, understand and quote. In practice that is crawler access, server-rendered HTML, answer-first writing, original data with named sources, and a consistent identity for your business across the web.
How does AI search engine optimization work?
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AI tools split a question into several searches, retrieve pages from an index, pick the passages that best answer each part and cite some of them. Optimization makes sure your pages are in those indexes and contain clear, self-contained answers the AI can lift.
What is the best AI for search engine optimization?
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General assistants such as ChatGPT, Gemini and Claude all help with outlines, keyword grouping, schema and summaries. The free measurement tools matter more: Google Search Console's generative AI report and Bing Webmaster Tools' AI Performance report show where you actually appear.
What is the 30% rule for AI?
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It is an informal rule of thumb with no fixed definition. The most common version says to automate about 30% of repetitive work with AI and keep the rest for human judgment, and for content it means a subject expert should own the facts and the final edit.
How do I rank in ChatGPT?
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Allow OAI-SearchBot in robots.txt and your firewall, make sure your content is in the raw HTML, rank well in regular search, and write clear answers with named sources. Mentions of your brand on review sites, forums and trade press also make ChatGPT more likely to name you.
Do I need llms.txt or special schema for AI search?
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No. Google says you do not need AI text files, special markup or Markdown to appear in its AI features. Standard structured data that matches your visible content is still worth having for rich results and clarity.
How do I track traffic from AI search?
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Use the generative AI performance report in Google Search Console for impressions in AI Overviews and AI Mode, the AI Performance report in Bing Webmaster Tools for Copilot citations, and a referral segment in your analytics for chatgpt.com, perplexity.ai and gemini.google.com.
Do AI Overviews reduce clicks to websites?
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Yes. Ahrefs found the top organic result gets 58% fewer clicks when an AI Overview appears, and Pew Research found people clicked a normal result on 8% of visits with an AI summary against 15% without one.
How long does AI search optimization take to work?
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Crawler fixes can take effect within days; OpenAI says robots.txt changes reach ChatGPT search in about 24 hours. Content and reputation work usually takes months, at a similar pace to SEO, because the AI tools rely on the same indexes and signals.