Context
Microsoft introduced four preview AI visibility measurement capabilities in Bing Webmaster Tools: Intents, Topics, Citation Share and Compare.
What changed
Bing's AI Performance expanded from citation and page counts to intent categories for grounding queries, semantic topic clusters, per-query citation share, and comparisons across reporting periods.
Why it matters
First-party measurement now separates absolute citations from intent, thematic presence, relative share of citations and longitudinal movement, informing more careful AI visibility auditing.
Visibility OS interpretation
Citation Share is an observational percentage of citations among cited sites for a grounding query; Microsoft says it is not a ranking score, competitor-domain report or traffic share. The June preview is distinct from October's Topics Portfolio beta.
What remains uncertain
How complete are the underlying citations and query samples? How stable are topic/intent classifications and availability for low-volume sites?
Evidence claims
On June 16, 2026, Microsoft announced global preview availability of Intents, Topics, Citation Share and Compare within Bing Webmaster Tools AI Performance; Citation Share measures a site's fraction of cited-source appearances for a grounding query, not rankings or traffic.
Related historical records
Bing Webmaster Tools introduces Topics Portfolio (Beta) for AI Performance
That record builds on this event.
Bing Webmaster Tools launches AI Performance citation reporting in public preview
This record builds on the linked event.