Most AI search advice in 2026 is written for Google and ChatGPT, and Copilot gets treated as an afterthought, if it gets mentioned at all. That's a gap worth closing if any meaningful share of your traffic comes from Windows, Edge, or a workplace running Microsoft 365. Copilot sits downstream of Bing's index, which means a lot of standard Bing SEO work transfers directly, plus there's a newer, Copilot-specific layer worth understanding on top of it.

This post covers how Copilot actually retrieves and cites content, how to set up Bing Webmaster Tools and IndexNow correctly, Bing's own ranking guidance, the new AI Performance report that shipped in February 2026, and a straightforward checklist to work through. It also draws a clear line between consumer Copilot and Microsoft 365 Copilot, because they're different products pulling from different data, and conflating them leads to wasted effort.

How Copilot actually retrieves and cites sources

Consumer Copilot, whether you reach it at copilot.microsoft.com, inside Bing's own AI-generated answers, or in Edge's sidebar, is grounded in the Bing index and the public web. That means the standard inputs to getting found by Bing, crawlability, indexation, content quality, structured markup, all feed directly into whether Copilot can find and cite your page at all. If Bing hasn't crawled and indexed a page, Copilot has nothing to retrieve from it.

Microsoft has started documenting this connection more directly through Bing Webmaster Tools' own blog. In July 2025, Bing published guidance specifically about keeping content discoverable for AI-powered search, confirming that sitemaps and real-time URL submission both feed the same underlying discovery pipeline AI-powered answers draw from, not a separate one. The post notes that a single sitemap index file can reference up to 2.5 billion URLs for comprehensive coverage, while IndexNow handles urgent, time-sensitive updates that need to surface quickly: submit a complete XML sitemap through Bing Webmaster Tools for broad coverage, and use IndexNow for real-time submission of anything that just changed (Bing Webmaster Blog, July 2025). The same post stresses getting the sitemap's lastmod field right, since Bing uses it to judge true content freshness, not just file-generation time, and warns against setting it to the sitemap's build time rather than the page's actual last edit.

Bing also began publishing data on the citation side specifically in late 2025 and 2026. A December 2025 post addressed how duplicate content affects both classic SEO visibility and AI search visibility together, and a November 2025 post covered how AI-driven search is changing conversion measurement, both signals that Microsoft is treating "ranks in Bing" and "gets cited in AI answers" as connected but increasingly separately-measured outcomes, which is exactly what the AI Performance report, covered below, was built to track.

A practical scoping note before going further: "Copilot" in the rest of this post means the consumer-facing answer engine, at copilot.microsoft.com, inside Bing's search results, and in Edge's sidebar when someone asks it to summarize a page or answer a question. That's the surface where a shopper, researcher, or someone comparing options actually types a question and gets back an answer with citations attached, the same basic interaction pattern as ChatGPT or Google's AI Mode. It is not the same product as Microsoft 365 Copilot, which we'll come back to later in this post, because conflating the two leads a lot of teams to chase visibility in a surface that was never going to show their content in the first place.

Bing Webmaster Tools: the baseline setup

If you haven't verified your site in Bing Webmaster Tools, this is the first step, full stop, and it's free. Verification confirms ownership, after which you can submit sitemaps, monitor crawl stats, see search performance data, and access the newer AI-specific reporting covered later in this post.

Once verified, API access is available two ways: OAuth 2.0, which Microsoft recommends, or a manually generated API key tied to your user account rather than to an individual site, meaning one key works across every verified property you manage (Microsoft Learn, Getting Access to the Bing Webmaster Tools API). If you ever suspect a key has leaked, delete it and generate a new one immediately; Microsoft's own documentation warns that every integration tied to the old key stops working the moment you do, so coordinate the swap if other tools depend on it.

Submit a full XML sitemap, not just a handful of priority URLs. Bing's documentation states it attempts to fetch a newly submitted sitemap immediately and then revisits it at least once a day afterward, so sitemap accuracy has a fast feedback loop if you keep it current.

IndexNow: what it actually does and who's on it

IndexNow is an open protocol, not a Microsoft-exclusive tool, that lets a site owner push a notification the moment a page is created, updated, or deleted, instead of waiting for the next scheduled crawl to discover the change. The protocol documentation lists Microsoft Bing, Naver, Seznam.cz, Yandex, and Yep as participating search engines that share submissions across the network, meaning a single IndexNow ping can reach more than one engine at once (IndexNow.org) if you're submitting to a shared endpoint those engines consume.

Mechanically, it's simple enough to set up without a developer sprint. For a single URL, a GET request to https://<searchengine>/indexnow?url=url-changed&key=your-key does the job. For bulk updates, you can POST a JSON payload with up to 10,000 URLs in one request. Ownership verification works by hosting a plain UTF-8 text file containing your key at your site's root, or at a custom location you specify via a keyLocation parameter if root access is awkward for your setup. Keys must be 8 to 128 hexadecimal characters.

Most major CMS platforms and a long list of SEO plugins now support IndexNow natively, so for most sites this is a one-time setup rather than an ongoing engineering task. If your CMS doesn't support it, a handful of lines of server-side code calling the GET or POST endpoint on publish or update covers it. Given that Bing's own guidance pairs IndexNow directly with sitemap submission as the two discovery mechanisms feeding AI-powered search, skipping it is leaving a free, fast signal on the table.

The Bing Webmaster Tools AI Performance report

On February 10, 2026, Bing announced a new AI Performance report inside Bing Webmaster Tools, in public preview. It's the first dedicated dashboard from a major search engine specifically built to show publishers how their content performs inside AI-generated answers rather than classic search results, and it's worth setting up alongside your existing Bing reporting rather than instead of it.

The report shows how your content appears "across Microsoft Copilot, AI-generated summaries in Bing, and select partner integrations," and includes several specific metrics: total citations (how many times your content appeared as a source in an AI-generated answer), average cited pages per day (the count of unique pages referenced across supported AI surfaces), a sample of the grounding queries that led to your content being retrieved, page-level citation activity broken out by URL, and a visibility trend line showing citation activity over time (Bing Webmaster Blog, February 10, 2026). Microsoft frames this explicitly as "an early step toward Generative Engine Optimization (GEO) tooling," language that confirms Microsoft sees this as a distinct, ongoing reporting category rather than a one-off feature.

A practical note on the sample grounding queries specifically: this is one of the only places, across any major AI vendor's public tooling as of this writing, where you can see actual example queries that led a system to cite your page, rather than inferring it from traffic patterns. If you're trying to validate which of your pages are earning citations and for what kind of question, this report is a better starting point than guesswork, and better than most third-party AI visibility trackers that don't have this kind of first-party access to Bing's own citation logs. The report also respects robots.txt and other standard content-control mechanisms, so pages you've deliberately excluded from Bing's crawl won't show up here, which is expected behavior rather than a bug to troubleshoot.

Bing-specific ranking factors worth knowing

Bing's publicly documented webmaster guidance covers familiar technical ground: crawlability, a clean and logical site structure, mobile-friendliness, and avoiding manipulative tactics that would get flagged under any major engine's spam policies. None of that is exotic if you've done SEO work for Google, and the overlap is deliberate. The practical difference with Bing is less about a secret ranking factor and more about how much Bing leans on content freshness signals and structured discovery signals (sitemaps, lastmod accuracy, IndexNow) as inputs to both classic ranking and, per Microsoft's own 2025-2026 blog posts cited above, to what gets surfaced into AI-generated answers.

Schema.org structured data via JSON-LD remains broadly useful for Bing the same way it's useful for Google: it doesn't guarantee a citation or a ranking boost, but it reduces ambiguity about what a page is and what it's claiming, which matters more, not less, when a retrieval system is deciding whether to cite you for a specific question. If you haven't implemented basic Article, FAQPage, Product or Organization markup where it applies, that's still worth doing as part of a general technical SEO baseline, covered in more depth in the technical SEO checklist that actually moves rankings and semantic HTML for SEO.

One more thing worth flagging because it trips people up: Bing added support for the data-nosnippet HTML attribute on October 15, 2025, which lets you wrap a specific element, say <div data-nosnippet>, so that section stays indexed and counts toward ranking but never gets pulled into a snippet or an AI-generated answer. Bing's own framing is "precise control over what content appears in search results and AI-generated answers, while keeping the rest of their page discoverable," and the stated use cases include paywalled material, legal boilerplate, outdated sections, and anything you'd rather Copilot didn't quote out of context (Bing Webmaster Blog, October 15, 2025). It's a scalpel where robots.txt or noindex is a sledgehammer, worth auditing your templates for before you reach for a blunter exclusion method on a page you actually want cited for its main content.

Consumer Copilot versus Microsoft 365 Copilot: a distinction that matters

This is the part that trips up a lot of marketers approaching Copilot for the first time, because "Copilot" isn't one product with one data source.

Consumer Copilot (Copilot Chat Basic and the web-grounded tiers) answers using public web data retrieved through Bing. This is the surface this entire post is about getting cited in: it's the one your prospects and customers might actually type a question into, the same way they'd type a question into ChatGPT or Gemini.

Microsoft 365 Copilot, particularly the Premium tier, is a fundamentally different grounding model. Per Microsoft's own documentation, Premium-tier Copilot grounds responses in both web data and organizational data pulled automatically through Microsoft Graph and a layer Microsoft calls Work IQ, which brings in a user's own emails, files, meetings, calendars, teams, and organizational relationships (Microsoft Learn, What is Microsoft Copilot?). An employee asking Copilot a question inside Word or Teams is often getting an answer synthesized primarily from their own company's internal data, not from the open web, and no amount of public-content optimization touches that surface at all. There's no "ranking" to chase inside a specific company's private Microsoft 365 tenant; that answer is grounded in data you don't control and can't appear in unless you work there or your content was explicitly uploaded into that environment.

The practical takeaway: everything in this post is about earning citations in consumer-facing Copilot and Bing's AI-generated answers, the surface where public content competes for visibility. Nothing here is a path into a company's private Microsoft 365 Copilot responses, and claims of "ranking in Microsoft 365 Copilot" from any vendor should be read skeptically, since that surface isn't built to surface public web content to begin with when Work IQ and Graph grounding are active.

Copilot optimization checklist

Work through this roughly in order if you're starting from nothing:

  • Verify your site in Bing Webmaster Tools and submit a complete, accurate XML sitemap with correct lastmod values.
  • Set up IndexNow for real-time submission on publish and update, either through your CMS's native support or a direct API call.
  • Confirm your robots.txt isn't inadvertently blocking Bingbot from sections you want indexed and cited.
  • Add or clean up structured data (Article, FAQPage, Product, Organization as applicable) so the page's purpose and claims are unambiguous to a retrieval system.
  • Wrap boilerplate, legal disclaimers, or anything you don't want quoted out of context in data-nosnippet, so it stays indexed without showing up inside an AI-generated answer.
  • Check the new AI Performance report in Bing Webmaster Tools for your current citation baseline and review the sample grounding queries it surfaces for pages that are already getting cited.
  • Watch for duplicate or near-duplicate content across your own site; Bing's own December 2025 guidance ties this directly to both classic ranking dilution and AI visibility dilution.
  • Keep content genuinely current, not just re-dated. Freshness signals feed Bing's crawl prioritization and, per Microsoft's stated direction, its AI surfacing as well.
  • If you're tracking Copilot visibility at scale across many prompts rather than just your own site's citation report, see the best Microsoft Copilot rank tracking tools for vendors that have confirmed Copilot coverage specifically, since a lot of "AI visibility" tools quietly skip Copilot entirely.

FAQ

Does ranking well in regular Bing search guarantee Copilot citations?

No, but it's a near-prerequisite. Copilot draws on the Bing index, so a page that isn't crawled, indexed, or ranking reasonably in Bing is unlikely to be available for citation at all. Ranking well in Bing doesn't guarantee a citation, since Copilot's answer generation adds its own selection logic on top of the index, but it's the floor you need to clear first.

Is IndexNow only useful for Bing?

No. IndexNow is a shared protocol, and the official participant list includes Yandex, Naver, Seznam.cz, and Yep alongside Bing, so a single submission can reach multiple engines that consume the shared feed. Google doesn't participate in IndexNow as of this writing, so it isn't a substitute for Google Search Console's own URL submission tools.

Is the AI Performance report available to every Bing Webmaster Tools account?

Microsoft's February 2026 announcement describes it as a public preview accessible through Bing Webmaster Tools, without stating a separate paid tier requirement in the announcement itself. Preview features can change in scope or availability as they mature, so check your own account directly rather than assuming access based on this post.

Can I optimize for Microsoft 365 Copilot the way I optimize for consumer Copilot?

Not in the same sense. Microsoft 365 Copilot's higher tiers ground answers in a company's own private organizational data via Microsoft Graph and Work IQ, which public content optimization has no path into. The one exception is content a company has explicitly connected or uploaded into its own tenant, which is an internal content strategy question, not an SEO or GEO one.

Does structured data directly cause Copilot to cite a page?

Not on its own, no vendor has made that claim. It reduces ambiguity about what a page is and what it claims, which plausibly helps a retrieval system decide a page is a confident match for a query, but it isn't a documented ranking or citation factor in isolation, for Bing or any other engine covered in this series.

Copilot is the engine most teams get to last, if they get to it at all, and that's exactly why the baseline work (a clean sitemap, IndexNow wired up, a verified Bing Webmaster Tools account) still moves the needle here when it's long since been table stakes for Google. Do the setup once this month, check the AI Performance report in sixty days, and you'll have an actual citation baseline instead of a guess.