Query fan-out1.2M queries · 111 sites

AI agents are already searching Google for your pages.

We read 1.2M Google Search Console queries from 111 sites, looking for searches no human would type: chatbot prompts pasted into Google, search operators, templates with unfilled placeholders, the same keyword bag in two different orders. 79% of sites had them. Almost none of them ever click.

Original research by the Outrank team · Published October 1, 2026

79%

Of sites get machine-written queries

88 of 111 sites

95–98%

Of them never get a click

Human queries: 74%

88

Machine queries per site

Median, among sites that have them

−58%

Clicks on question queries

Versus other top-3 queries, same site

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Exhibit A

These are real Google searches that showed our customers’ pages

A selection of machine-shaped queries from the dataset, with their impressions, clicks and average position. Filter by type.

  • PromptA full chatbot prompt, typed into Google word for word

    ›write a love poem about someone longing for a sandwich. make it a sonnet, and give it a tone that straddles a serious love poem and whimsy

    impr
    10,017
    clicks
    157
    pos
    10.6
  • TemplateUnfilled {placeholders}: a script ran this, not a person

    ›"dr. {name}" "{address}" "{address}" education residency fellowship board certification insurance hospital affiliations languages

    impr
    2,583
    clicks
    0
    pos
    6.4
  • Fan-outSame 13 keywords, two orders, both at #3, zero clicks

    ›commercial property operator residential developments management fee percentage rent success fee asset light

    impr
    7,147
    clicks
    0
    pos
    3.0
  • Fan-outThe reshuffled twin of the query above

    ›commercial property operator residential developments asset light management fee percentage rent success fee

    impr
    6,867
    clicks
    0
    pos
    2.9
  • OperatorA line of Python in quotes: a coding agent looking up docs

    ›"from langgraph.graph import stategraph, end"

    impr
    6,085
    clicks
    0
    pos
    9.0
  • PromptA textbook LLM demo prompt, sent to Google instead

    ›write a casual email to my colleague jamie letting her know i can’t make the 2pm meeting and asking to reschedule. make the body of the email 3 sentences

    impr
    3,047
    clicks
    657
    pos
    4.0
  • AI-style questionPhrased for an assistant, answered by an AI box, clicked by nobody

    ›are there any firms that specialize in writing standard operating procedures for new startups?

    impr
    5,822
    clicks
    0
    pos
    5.7
  • Fan-outYear stacking is a classic fan-out signature

    ›top us data center colocation providers 2025 2026 list

    impr
    5,059
    clicks
    0
    pos
    9.2
  • OperatorExclusion operators are almost never typed by people

    ›best books learn french beginners -site:blog.librarything.com

    impr
    1,916
    clicks
    0
    pos
    5.6
  • AI-style questionGenerated-sounding phrasing, the kind agents use to research a list

    ›are there any underrated tools for working with ahrefs alternative that seos love?

    impr
    2,086
    clicks
    1
    pos
    38.2
  • OperatorOur own site, audited by someone’s bot

    ›site:www.outrank.so

    impr
    2,357
    clicks
    1
    pos
    1.1
  • Fan-outNo verbs, no stopwords, nine concepts in a row

    ›academic tool product hunt launch timing visibility optimal day

    impr
    5,169
    clicks
    0
    pos
    6.1

Source: Google Search Console via Outrank. Queries that could identify a customer were left out.

Look at the template with the empty {name} and {address}: a script built that query and forgot to fill it in, then ran it thousands of times. Look at the commercial property query that appears twice, the same thirteen keywords in a different order, both ranking third, neither clicked. That is what an AI agent researching a question looks like from the other side: it fans one question out into many searches and reads the results itself.

And the sonnet. Somebody, or something, asked Google for a love poem about a sandwich in the exact words they would give ChatGPT. Search is becoming a prompt box, and Search Console is where you can watch it happen.

Machines do not click

95–98% of machine-shaped queries never produce a click

Share of queries in each group that got zero clicks over 16 months, across all sites. Count shows how many sites had at least one.

Search operators & quoted strings: 98% · 84 sites · CTR 0.90% · average position 12.0 Hover a bar for details.

Share of zero-click queries by query type
Search operators & quoted strings98%84
Long conversational questions96%81
Chatbot-style prompts95%78
Normal human queries74%111
Keyword-stuffed strings46%75

Source: 111 sites, 1.2M queries.

When an agent reads your page, it does not click a blue link the way a person does, so Search Console records an impression and nothing else. Keyword-stuffed strings are the exception that proves the rule: many come from non-English searchers and tool sites where a human did type a list of words, and they rank high (average position 4.6) and get clicked.

The prompt tail

The longer the query, the higher you rank and the less anyone clicks

Search Console metrics by query length, all queries pooled.

Search Console metrics by query length in words
Query lengthShare of impressionsClick-through rateAvg positionZero-click queries
1–2 words16% of queries
37.7%
5.25%
6.978%
3–4 words45.7% of queries
52.9%
6.61%
872%
5–6 words23.3% of queries
7.9%
8.39%
8.374%
7–9 words9.9% of queries
1.1%
5.44%
9.283%
10–14 words3.3% of queries
0.3%
3.15%
5.678%
15+ words1.7% of queries
0.2%
3.75%
4.665%

Source: 111 sites. Pooled, so the largest sites weigh more.

Queries of 15 words or more ranked at an average position of 4.6, better than any other group, yet earned a click-through rate of 3.75%, less than half that of five- and six-word queries. Long, specific queries have few competing pages, so a focused article ranks easily. Then the answer box takes the click. That is the bargain of the prompt tail: easy visibility, little traffic, and a direct line into the answers assistants give.

The question tax

At the same top-3 position, question queries earned 58% fewer clicks

For 39 sites, the click-through rate of “how”, “what”, “why” and other question queries ranking top 3, compared with the same site’s other top-3 queries.

Source: 39 sites with enough volume in both groups, brand queries excluded.

On 26 of 39 sites, questions converted worse than other queries at the same rank, and the median site’s questions earned 0.42× the click-through. Questions are exactly what AI Overviews and AI Mode answer, and what agents fan out into. The content format study shows the same pattern at page level.

Our take

Stop writing for the keyword. Write for the prompt, because the thing reading your page is increasingly not a person.

For twenty years, SEO meant guessing the two or three words a person would type. The queries in this study say the searcher is changing: longer, stranger, more specific, and more and more often a machine working for a person who will never see your site.

You cannot optimize for each of those queries by hand. You can cover the questions in your niche so thoroughly that whichever branch an agent explores, it lands on you. The AI citation study shows that breadth is exactly what gets cited.

  1. 01

    Mine your Search Console for prompts

    Filter for queries of ten words or more. They are the questions people now ask assistants, and a content plan in plain sight.

  2. 02

    One precise question per page

    Fan-out searches are narrow and stacked with constraints. A page that answers exactly that gets picked for that branch.

  3. 03

    Count impressions as reads

    An impression with no click on a machine-shaped query is an AI reading you. Track it, do not prune the page for it.

The case against

4 reasons to discount these numbers

Every dataset has blind spots. These are ours, stated plainly.

  • We cannot see who searched

    Search Console does not say whether a query came from a person, a script or an AI agent. The patterns here are strong fingerprints, not proof, and some long questions are typed by real people.

  • Google hides rare queries

    Queries searched once or twice are anonymized and never appear in the data. Machine queries are often one-off, so their real volume is much higher than what we can count.

  • A smaller, uneven sample

    111 sites had query-level data, and a few large ones dominate the pooled tables. That is why the headline numbers count sites, not impressions.

  • Language noise

    Our rules were written for English. Some non-English queries land in the keyword-stuffed group simply because our stopword list does not cover their language.

Methodology

How we ran the numbers

  • Data: query-level Search Console data (up to 25,000 queries per site over 16 months) for the 111 sites where Outrank had collected it: 1,179,780 queries and 734.4M impressions. Google hides rare queries for privacy, so long, one-off machine queries are heavily undercounted.
  • Operators & templates: queries containing quotation marks, OR, site:, intitle:, inurl:, filetype: or a minus-exclusion. Templates are the subset with unfilled {placeholders}.
  • Prompts: eight words or more that start with an instruction (write, make, create, explain, summarize, compare…), address the reader as “you”, or contain several sentences.
  • Keyword-stuffed strings: nine words or more with no stopwords at all (no “the”, “for”, “how”…), in plain ASCII. Long conversational questions are ten words or more starting with a question word.
  • Question tax: for the 39 sites with at least 1,000 impressions on both question and non-question queries ranking in the top 3, excluding brand queries.

Cite this study

Outrank (October 1, 2026). Query fan-out is already in your Search Console: 1.2M queries from 111 sites. https://www.outrank.so/case-studies/query-fan-out

Journalists, researchers and bloggers are welcome to quote these numbers and screenshot the charts with a link back to this page.

Query fan-out FAQ

Questions this data answers

What is query fan-out?
When you ask an AI assistant a question, it often splits it into several searches, runs them in parallel and reads the results before answering. Google describes the same technique for AI Mode. Each of those searches can show your page, and each one is a query no human typed.
Can I see AI queries in Google Search Console?
Partly. Search Console does not label them, but they leave fingerprints: full chatbot prompts, search operators, unfilled {placeholders} and long strings of keywords with no verbs. 79% of the sites we studied had at least one, and 95–98% of those queries never got a click.
What is LLM SEO?
Optimizing your content so large language models find it, read it and cite it when they answer. Because assistants search the web before answering, LLM SEO starts with classic SEO: rank for the questions, on many pages, with answers specific enough to quote.
Do question queries still get clicks?
Fewer than other queries at the same position. On 67% of the 39 sites we could compare, question queries in the top 3 got a lower click-through rate than other queries in the top 3. The median site saw 58% fewer clicks on its questions.
How do I optimize for query fan-out?
Cover the sub-questions, not just the head term. Fan-out queries are specific and stacked with entities, years and constraints. Pages that answer one precise question each, across a whole topic, are the ones an agent finds for every branch of its search.
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Your turn

The agents are already searching. Be what they find.