Bing shows where Copilot cites rivals, not you
Microsoft’s new Topics Portfolio groups the queries Copilot uses to find sources and shows the ones where other sites are cited instead of yours.
On October 13, 2026, Microsoft added a beta feature called Topics Portfolio to the AI Performance report in Bing Webmaster Tools.
What happened
The report groups a site’s grounding queries, the searches Copilot runs to find sources for an answer, into AI-classified topics. For each topic it shows an approximate size, how many sites are cited and how many queries it contains. It also lists opportunity queries: grounding queries where other sites are cited and yours is not.
The data covers Microsoft’s AI surfaces such as Copilot and AI summaries in Bing. The AI Performance report has been in public preview since February 10, 2026. Reviews note there is no API yet, and the report shows citations rather than clicks or conversions.
What it means for you
- It’s a free view of AI query fan-out. Grounding queries show how an assistant breaks one question into several searches.
- Use the gaps as a content plan. Opportunity queries are topics where an answer exists but your page isn’t the source.
- Get indexed in Bing first. Copilot builds answers from Bing search results, so pages Bing hasn’t indexed can’t be cited. IndexNow speeds this up.
Try the Query Fan-out Generator to see the sub-queries an AI search might run for your topic.