Citation share calculator
For each engine, enter how many prompts you tracked and in how many of them each brand was cited as a source. Leave an engine blank to skip it.
| Engine | Prompts tracked | Your brand | Competitor 1 | Competitor 2 | Competitor 3 |
|---|---|---|---|---|---|
| Google AI Overviews | |||||
| Google AI Mode | |||||
| ChatGPT search | |||||
| Perplexity | |||||
| Microsoft Copilot |
The numbers filled in are an example. Runs in your browser; nothing you type is sent or saved.
How is citation share calculated?
For each engine, and pooled across all engines you fill in:
- Share of citations for a brand = prompts in which that brand is cited / sum of the cited-prompt counts of every tracked brand
- Prompt coverage for your brand = prompts in which you are cited / prompts tracked
- All engines (pooled) adds the counts across engines before dividing, so an engine with more tracked prompts weighs more
In the example, Google AI Overviews gives 12 / (12 + 20 + 8 + 0) = 30.0% share and 12 / 50 = 24.0% coverage; ChatGPT search gives 5 / 40 = 12.5% and 10.0%; pooled, 17 / 80 = 21.3% share and 17 / 100 = 17.0% coverage.
Two limits. The share is relative to the brands you track, so adding a competitor lowers everyone else's share. And it counts prompts, not individual links: a brand cited three times in one answer counts once.
Which AI visibility metrics are defined officially?
| Metric | Definition | Defined by |
|---|---|---|
| Citation Share | The percentage of citations attributed to your site out of all citations shown across all sites for the same grounding query | Bing Webmaster Tools, AI Performance report (preview, June 2026) |
| Total Citations | The total number of citations displayed as sources in AI-generated answers during the selected time frame | Bing Webmaster Tools (February 2026) |
| Average Cited Pages | The average number of unique pages from your site displayed as sources in AI-generated answers per day | Bing Webmaster Tools (February 2026) |
| Grounding queries | The key phrases the AI used when retrieving content that was cited; a sample of overall citation activity | Bing Webmaster Tools (February 2026) |
| Clicks and impressions from AI features | Traffic from AI Overviews and AI Mode is counted in the Search Console Performance report, under the "Web" search type | Google Search Central |
| Share of citations (this calculator) | Prompts citing a brand / prompts citing any tracked brand | This page |
| Prompt coverage (this calculator) | Prompts citing your brand / prompts tracked | This page |
Bing calls Citation Share an observational metric, not a ranking system or a competitive scoreboard: it does not show competitor domains, represent traffic share or score content quality. Bing's reports cover Microsoft Copilot, AI-generated summaries in Bing and select partner integrations.
What does a share number not tell you?
A share is a measurement of answers you sampled, at the time you sampled them. Bing notes that citation patterns shift with user behaviour, model changes, freshness signals and partner refresh cycles. No tool, and no consultant, can guarantee a citation or a share; use the number to see which pages and topics to work on next, then measure again.
Sources
Checked 13 November 2026:
- Microsoft Bing Blog: New AI Visibility Insights in Bing Webmaster Tools: Intents, Topics, Citation Share, Compare (16 June 2026)
- Microsoft Bing Blog: Introducing AI Performance in Bing Webmaster Tools Public Preview (10 February 2026)
- Google Search Central: AI features and your website