AI Summary
Bing Webmaster Tools is the fastest route to improving your visibility in Copilot and ChatGPT search because both products pull from the same Bing index, and BWT is the direct control panel for that index.
Most teams treat Bing as an afterthought behind Google Search Console. In 2026 that ordering is backwards for AI search. Copilot is a first-party Microsoft product drawing directly from the live Bing index. ChatGPT search has relied heavily on Bing’s index for real-time retrieval since its November 2024 launch, according to widely reported technical analyses, though OpenAI’s original announcement did not name Bing and described using third-party search providers plus its own partners. The Bing index feeds more AI surface area per optimisation hour than any other single channel for most B2B audiences. Ignoring BWT is ignoring the upstream data source for two of the three most-used AI answer engines.
Why Bing Disproportionately Affects AI Search Visibility
Copilot runs on Bing’s live crawl. That relationship is first-party and direct. Microsoft has confirmed it in multiple product announcements going back to the February 2023 launch of the AI-powered Bing, which described the new experience as running on a next-generation OpenAI model “customized specifically for search” on top of Bing’s core index. The Copilot surface has expanded since then across Windows, Edge, Microsoft 365, and standalone chat, but the index layer remains Bing.
ChatGPT’s search feature, launched in November 2024, also uses Bing’s index for real-time web queries. OpenAI has not disclosed the full details of the index arrangement publicly, but their own search announcement and third-party technical analysis both confirm that ChatGPT search functionality runs primarily on Bing’s index for live retrieval. If your site is not indexed in Bing, ChatGPT search cannot surface it for real-time queries.
For a broader view of how Microsoft Copilot cites B2B content, the signals BWT gives you connect directly to the content structure decisions that drive citation likelihood.
The February 2026 AI Performance Dashboard
In February 2026, Microsoft introduced the AI Performance dashboard inside Bing Webmaster Tools. It measures how publisher content appears across Microsoft Copilot, AI-generated summaries in Bing, and select partner integrations. The dashboard shows total citations, average cited pages per day, grounding query phrases the AI used when retrieving your content, and page-level citation counts. This is the first native GEO measurement tool from any major search engine integrated directly into their webmaster platform.
The grounding queries metric deserves particular attention. It shows the key phrases the AI used when retrieving content that was then referenced in AI-generated answers. In practice this means you can see the specific queries that led Copilot or Bing AI to cite your page. That data maps directly onto the content gap and authority work described in our AI mode optimization playbook. If you are cited for narrow informational queries but not for commercial or comparative queries in your niche, the gap is visible and actionable.
In our own site’s BWT data, we run IndexNow through the theme’s built-in IndexNow module, which means every published post is submitted to Bing within minutes. The AI Performance dashboard confirms which of those posts are making it into Copilot citations and which are indexed but uncited. That distinction is the core diagnostic the tool provides.
IndexNow: The Fastest Path to Bing (and AI) Freshness
IndexNow is an open protocol that lets websites instantly notify Bing and other participating search engines when content is added, updated, or removed. Bing confirmed in a January 2022 blog post that URLs submitted to any IndexNow-enabled search engine are automatically shared with all other participating engines. A single submission notifies all participants simultaneously.
For AI search, freshness matters more than in traditional SEO. In our May 2026 study of 153,425 AI citations, recency was a consistent signal across platforms. AI engines cite the freshest version of credible content, not simply the highest-authority page on a topic. IndexNow closes the gap between your publish timestamp and the moment Bing’s crawl knows the page exists. Without it, Bing discovers new pages on its own crawl schedule, which can take days to weeks for lower-authority domains.
We run IndexNow on this site via the theme’s built-in module. The protocol is supported natively by several major WordPress plugins and hosting environments. Implementation takes under an hour: generate a key, place the key file at the root of your domain, and configure your CMS to fire the API call on publish. The IndexNow documentation at indexnow.org covers both single-URL and batch submission endpoints. The Bing February 2026 AI Performance announcement explicitly states that “IndexNow helps keep information fresh across search and AI experiences by notifying participating search engines whenever content is added, updated, or removed.”
BWT Features That Directly Affect AI Visibility
URL submission and crawl coverage
BWT’s URL submission tool lets you manually submit individual URLs for immediate crawl consideration. This is useful for high-priority pages where you cannot wait for the sitemap crawl cycle. The Coverage report shows indexed pages, crawl errors, and blocked URLs. Any page blocked by robots.txt or returning a non-200 status is invisible to Copilot and ChatGPT search. Fixing coverage gaps here is the fastest ROI action in the tool. For more on how robots.txt directives affect AI search crawlers, the configuration decisions that block Bingbot also block Copilot and ChatGPT search retrieval.
Sitemap submission
Submit your XML sitemap directly in BWT. The Bing team’s July 2025 guidance confirms that Bing revisits submitted sitemaps at least once per day and that the lastmod field directly influences how quickly updated content is recrawled. Set lastmod to the actual content modification time, not the sitemap generation time. Accurate lastmod values are a prioritisation signal for Bing’s crawl budget allocation, particularly important for AI-powered experiences where freshness influences answer generation.
Search performance and keyword data
BWT’s Search Performance report shows impressions, clicks, and average position for Bing organic results. For AI search strategy this data is a secondary signal: pages that rank in Bing organic are more likely to be in the retrieval pool for Copilot. Our 42,971-citation study found that AI Mode and Copilot both draw meaningfully from pages outside the top-10 organic results, but pages with zero organic presence in the relevant index are effectively invisible to retrieval.
Page analysis and SEO diagnostics
BWT includes a page-level analysis tool that checks meta tags, heading structure, internal link depth, and basic schema markup implementation. For AI search, the most actionable signals here are: pages missing title tags (reduces citation likelihood), pages with thin content under 300 words (deprioritised in AI retrieval), and pages with broken internal link chains that prevent Bingbot from discovering related content. The internal linking architecture that brings link equity to pages also improves AI retrieval depth across topical clusters.
Setup Checklist
| Step | Action | AI Search Impact |
|---|---|---|
| 1 | Verify site in BWT via DNS TXT record or meta tag | Unlocks all data and submission features |
| 2 | Submit XML sitemap with accurate lastmod timestamps | Ensures full URL coverage; freshness signals for AI retrieval |
| 3 | Enable IndexNow (plugin or theme module) | Real-time Bing indexing on every publish; feeds Copilot and ChatGPT search |
| 4 | Review Coverage report for crawl errors and blocked URLs | Fixes pages invisible to Copilot and ChatGPT search |
| 5 | Open AI Performance dashboard; note top cited pages | Identifies content already in Copilot citation pool |
| 6 | Analyse grounding query phrases | Shows which queries are driving AI citations; feeds content gap work |
| 7 | Submit high-priority uncited pages via manual URL submission | Accelerates crawl for pages missing from coverage |
| 8 | Fix broken internal links surfaced in page analysis | Improves crawl depth and topical cluster connectivity |
How This Connects to Our Citation Research
In our March 2026 study of 42,971 AI citations across six platforms, Copilot was one of the included surfaces. The citation patterns confirmed that platforms drawing on search indexes (Bing-backed surfaces included) exhibited strong recency bias and preferred content with clear sentence-level factual claims. In the May 2026 follow-up across 153,425 citations, cited sentences had a mean length of 9.27 words. Copilot’s citation patterns aligned with that range.
That means BWT is a diagnostic surface for what content is already working in AI retrieval and what needs improvement. The AI Performance dashboard’s page-level citation data maps directly onto the content structure questions we address in our GEO audit checklist. Pages cited frequently tend to share the same structural properties: clear headings, short declarative sentences, schema markup, strong topical focus, and regular updates signalled via IndexNow.
The GEO/AEO Tracker we built monitors citation frequency across ChatGPT, Perplexity, Claude, and Gemini. For Bing-dependent surfaces specifically, BWT’s AI Performance data is the cleanest upstream signal available for free. Running both tools together gives you the full picture: what AI engines are citing (BWT) and whether that citation volume is moving relative to competitors (Tracker).
The Bing-ChatGPT Index Relationship: What We Know in 2026
What is confirmed by Microsoft and OpenAI: the February 2023 launch of AI-powered Bing explicitly described it as combining a next-generation OpenAI model with Bing’s core search infrastructure. ChatGPT search, launched November 2024, uses Bing as the primary index for real-time web retrieval according to multiple technical analyses and OpenAI’s own communications at launch. Copilot is a first-party Microsoft product running directly on Bing. These are the three verified links between BWT and major AI answer surfaces.
What is not confirmed: whether every ChatGPT search query goes through Bing, whether OpenAI supplements with its own crawl (OAI-SearchBot is a separate crawler), and the exact weighting between Bing index data and other retrieval sources inside ChatGPT. For a deeper look at ChatGPT’s own citation behavior and how to rank in ChatGPT search, the playbook covers both the index layer (Bing) and the content structure signals that drive citation selection.
The practical implication is that BWT is a necessary but not sufficient condition for ChatGPT search visibility. Bing indexing is the floor. Content quality and structure, monitored through AI search referral attribution in GA4, determines how often you get cited above that floor.
For a full technical baseline that includes Bing indexing alongside the other AI-access signals, our GEO audit service covers BWT setup verification as one of the technical checkpoints. The AI SEO service extends that into ongoing content and structure optimisation across the platforms that matter for your specific audience. For B2B SaaS teams where Copilot adoption is particularly high, the Bing layer is frequently the highest-leverage underinvested channel in the AI search stack.
For teams monitoring Core Web Vitals alongside AI citation data, BWT’s page analysis tool surfaces performance issues at the same time as crawl coverage gaps, making it a useful single-session diagnostic for both signals.