Microsoft Copilot
Microsoft Copilot is the AI assistant made by Microsoft: a chat interface built on large language models and grounded in Bing web search, offered inside Windows, the Edge browser, Microsoft 365 and as a standalone app and website. For a business it is one of the assistants that may or may not name it when a customer asks a question.
Where a customer meets it
Copilot is unusual among assistants in how many places it sits. It is a button in the operating system, a sidebar in the browser, a pane inside the office applications a buyer already has open, and a chat site of its own. The same underlying answer can therefore reach a person who never decided to ask an AI anything; they asked the browser. That makes the surfaces hard to count and the answers no less real.
How a business gets into an answer
The mechanism is the one every retrieval-backed assistant shares. The question is turned into one or more searches, a handful of pages are fetched, and an answer is composed from passages in them, with the sources shown. Three things have to hold for a business to be named: the crawler received its page rather than a bot-protection challenge, the page contains a passage that answers the question on its own, and the business is identifiable across that page and others by one name, one address and one phone number. Because Copilot’s retrieval runs on Bing, what Bing has indexed sets the outer limit of what Copilot can cite.
What this site has measured
Nothing on Copilot specifically. This site’s one-question probe of small businesses was run against Claude with retrieval, and a Claude number does not transfer to another assistant. The site-side readiness findings are engine-agnostic, because they describe what a page serves to any crawler, and they are written up in the 9,483-site audit. A reading for one business comes from the visibility check, which puts a panel of questions to one assistant, Claude, and keeps the answers; it is not a Copilot reading.
A common question
Does Bing's index limit what Microsoft Copilot can cite about a business?
Yes. Copilot's retrieval runs on Bing, so a page Bing has not indexed is outside the set Copilot can quote from. Past that limit the mechanism is the usual one: the question becomes one or more searches, a few pages are fetched, and the answer is assembled from passages with the sources shown. Three conditions have to hold for the business to be named, that the crawler got the page instead of a bot-protection challenge, that the page answers the question on its own, and that one name, one address and one phone number identify the business across it and other pages.