PegasusMore of the asking moves to AI. Less of it ends in a click.
These are the figures we use when we talk about how discovery is changing. Every one has a named source, a date window and a method, and each is marked by how much weight it can bear. Where sources disagree, we show the range instead of picking the number we like.
Last verified November 3, 2026. Updated as new data is published.
The volume
AI search is real. How big depends on who counts.
Google handles more than five trillion searches a year. Against that, estimates of ChatGPT’s search volume range from about 12% of Google’s in an independent study to about 20% in OpenAI’s own count, announced this week.
OpenAI counts every web lookup ChatGPT runs as one search, so a single conversation can produce several. That’s why its figure sits at the top of the range. Sources: Search Engine Land (Google), Ahrefs, The Verge (OpenAI).
The range is the honest number. The trend runs one way.
The click
The volume moved. The traffic didn’t.
Search engines used to make a deal with every site: let the crawler in, and visitors come back. AI assistants read far more than they send. Google still delivers almost all of the referral traffic the web gets.
Crawl-to-refer ratios swing from month to month, so we always cite them with their window. July 2026 is full-month data. Sources: Ahrefs, Cloudflare Radar.
Answered in place
The answer arrives. The visit doesn’t.
On both sides of the line, more questions end where they were asked. Google keeps more searches on its own page, and AI answers rarely link out at all. Being chosen inside the answer is starting to matter more than ranking for the click.
And ChatGPT is reaching for the web less often, not more: it ran a web search on 34.5% of queries in February 2026, down from 46% in late 2024, according to Semrush’s analysis of US clickstream data.
Sources: Search Engine Land (SparkToro study), Similarweb, MediaPost (Semrush).
What it means
Discovery is moving inside the answer.
Put the three together. People ask AI a real share of what they used to ask a search engine. The answer comes back without a visit. And the platforms are building paid placements inside the answer itself. A business that only measures clicks will see less and less of how customers find it.
The next step is already visible: the agent that finds the product is starting to buy it too. What matters then is whether your store can tell which agents to let in, and on whose authority they act.
Know Your Agent
Who is the agent, who authorized it, what may it do, and how far does that authority travel.
Read the library →The Door
Sourced takes on what moved where agents arrive, plus the newsletter.
Read The Door →Agent commerce
Make a store you own something AI shopping agents can buy from, under your rules.
See the offer →The ledger
Every figure, with its receipts.
Primary means the company or network reporting its own measured data. Research means an independent study with a published method. Self-reported means a company’s own claim about itself, unaudited.
Google: more than 5 trillion searches a year
Google’s own figure, disclosed in early 2025. Estimates of 5.9 trillion that circulate online are not official.
Search Engine Land · Disclosed March 2025.Google Search & other revenue: $224.5B
Alphabet’s audited annual filing for fiscal 2025.
Alphabet investor relations · FY2025 Form 10-K.ChatGPT search volume: about 20% of Google’s
Announced by OpenAI’s consumer product lead. Counts every web lookup ChatGPT runs as a search. Always attribute: “OpenAI says.”
The Verge · Nov 2, 2026.Crawler referrals: Google 88.08%, chatgpt.com 0.913%
Share of referrals across Cloudflare’s network.
Cloudflare Radar · July 2026, full month. Re-pulled monthly.Pages crawled per referral: Google 4.7:1, OpenAI 251:1
How many pages each operator fetches for every visitor it sends back.
Cloudflare Radar · July 2026, full month. Moves month to month.6.8% of US ChatGPT answers link to an outside source
US data.
Similarweb, 2026 Generative AI Landscape · May 2026.AI platform visits up 28.6%; AI referrals flat
US, desktop and mobile combined.
Similarweb · Jan 2025 to Jan 2026.ChatGPT ran web search on 34.5% of queries
Down from 46% in late 2024. Based on more than a billion lines of US clickstream data.
MediaPost (Semrush) · Feb 2026.68% of US Google searches end without a click
Up from 60.45% in 2024 and 49% in 2019. Based on Similarweb panel data.
Search Engine Land (SparkToro) · Early 2026.Held back until we can check the original reports: a modeled estimate of ChatGPT at about 7.5% of Google’s volume (Oct 2026), and a single-analyst figure putting OpenAI’s search crawler near 18% of Googlebot’s request volume (Oct 2026). Both point the same direction as the ledger.
Can an agent buy from you?
When discovery happens inside the answer, the next question is whether the agent that found you can get in. Check your store free, or open a workspace and see where you stand.