What changed
Microsoft expanded Bing Webmaster Tools’ AI Performance public preview on June 16, 2026 with four additional reporting dimensions: Intents, Topics, Citation Share and Compare. The original February preview showed total citations, cited pages, grounding queries and URL-level citation activity across Microsoft Copilot, AI-generated Bing summaries and selected partner integrations. The June expansion adds classification of the queries that lead to citations, thematic grouping, a relative citation-share measure and period-over-period comparison.
Why it matters
AI-search optimization has been difficult to evaluate because publishers often see referral traffic only after a click and receive little information about when their content was used inside an answer. Bing’s expanded reporting gives site owners a first-party way to measure citation visibility before the click: what kinds of user intent their pages satisfy, which topics they are associated with and whether citation share is improving or weakening. That does not prove downstream conversion, but it gives publishers a much better feedback loop for deciding what content to update, consolidate or expand.
Bing is moving GEO measurement beyond raw citation counts
The February AI Performance preview established a baseline of total citations, average cited pages, grounding-query phrases, page-level citation activity and trends. The June update adds intent and topic classification so publishers can see the context in which their content is being used, rather than treating every citation as equivalent.
Citation Share adds a competitive-style visibility signal
Citation Share is designed to show a site’s relative presence in AI answers over time. It is not a conventional organic ranking metric and Microsoft does not present it as a direct proxy for authority, but it lets teams monitor whether their share of citation opportunities is changing within the supported AI experiences.
Compare turns AI visibility into a repeatable reporting workflow
The new comparison view lets publishers contrast periods rather than manually exporting snapshots. For teams running content refreshes, schema changes or topic expansion, this makes it possible to evaluate whether citation patterns moved after the intervention, while still avoiding a false claim of causality.
The data is still a preview and is scoped to Microsoft-supported AI surfaces
The reporting does not represent the entire generative-search market. It reflects Microsoft Copilot, AI-generated Bing summaries and selected partner integrations, and Microsoft explicitly describes the feature as a public preview. Builders should therefore use it as one source of evidence alongside referral analytics, other AI-search tools and conversion data.