Get Your Squarespace Site Cited by Bing Copilot

The product naming has been confusing because Microsoft moved the brand twice. The original "Bing Chat" became "Microsoft Copilot" in late 2023; the consumer-facing chat experience consolidated under that name across Bing, Edge, Windows, and the standalone copilot.microsoft.com site. The product behaviour did not change — Bing's web index is still the citation pool, the source cards still appear beneath the answer, and the underlying retrieval chain still uses Microsoft's classical search infrastructure. For a Squarespace owner thinking about AI citation, the practical name is "Copilot" and the practical optimisation surface is Bing.

The model question matters less than most playbooks claim. Microsoft 365 Copilot's December 2025 announcement⁸ names GPT-5.2 as the integrated OpenAI model alongside Microsoft's Work IQ layer; consumer Copilot uses the same OpenAI partnership but the exact model routing per query is not published. The implication for citation strategy is clean: pages that earn ChatGPT citations tend to earn Copilot citations too, because the language model sits in the same family. The optimisation that matters is upstream — whether your site is in the Bing index and whether your content is shaped the way the engine extracts.

The Squarespace-specific framing matters because Bing Copilot is the AI engine where the platform's defaults work in your favour rather than against you. Bingbot is not on Squarespace's 26-bot AI-exclusion list⁶, so the toggle that worries owners about ChatGPT or Perplexity does not touch the Copilot citation pool at all. The work is upstream of the Squarespace UI — in Bing Webmaster Tools, in the IndexNow submission flow, and in the same content discipline that earns citations on every other AI engine.

The market-share data is unambiguous: Google still owns the search universe at roughly 90% global share⁷, and Bing's 4.31% global number understates its actual reach because mobile pulls the average down. Bing's desktop share is materially different — ~10.6% globally and ~16.75% in the US per StatCounter Q1 2026 — and desktop is where most professional research, B2B procurement, and AI-assisted writing happens. Copilot's tightest integration is on desktop: built into Windows, into Edge, and into Microsoft 365. The exposure is concentrated where it matters most for service businesses, knowledge work, and high-consideration purchases.

The bigger lever is feedback. On 11 February 2026 Microsoft launched the AI Performance report inside Bing Webmaster Tools¹ — the first time a major AI search provider has published per-URL citation data directly to publishers. The report shows total citations across Microsoft Copilot, AI-generated summaries in Bing, and select partner integrations; the average number of unique cited pages per day; sample grounding queries (the internal search phrases Copilot writes to retrieve content); and a per-URL breakdown of which pages get cited most. Search Engine Journal's coverage of the launch¹⁰ frames the significance: no other AI engine has shipped anything comparable. ChatGPT, Perplexity, Gemini, and AI Overviews all leave citation measurement to the publisher.

The mechanical chain is the same one Google uses for AI Overviews, with a different language model and a different index. Bingbot crawls the page. The page enters the Bing search index. For a given Copilot conversation, the grounding layer writes internal queries and retrieves a candidate set from the index. The language model (GPT-5.2 family in Microsoft 365 Copilot per the December 2025 release⁸, OpenAI partnership chain in consumer Copilot) synthesises an answer with three to six numbered source cards beneath. The cards carry referrer data, so AI Performance can count them precisely — this is what makes Copilot measurable when ChatGPT citations are not.

The implication for Squarespace owners: every fix that improves your Bing index health also improves Copilot citation eligibility. A site that is not in the Bing index cannot be cited. A site that is indexed but has stale entries cannot win citations on time-sensitive queries. A site that is indexed and fresh but ships fragmented HTML and no named sources can be cited but rarely gets quoted prominently. The three levers below close those three gaps in order.

The IndexNow gap is the most consequential one because IndexNow is the protocol Microsoft built specifically to keep the index fresh enough for Copilot grounding. The indexnow.org spec⁴ describes the contract: the publisher hosts an API key file at the site root, then notifies participating search engines (Bing, Yandex, Naver, Seznam) whenever a URL is added, updated, or deleted. Squarespace does not let you upload the key file to the root, and does not wire the submission hooks into its CMS lifecycle. The workaround is real but manual — the IndexNow leaf walks through the URL Mappings + page-slug pattern that hosts the key file, plus the Bing Webmaster Tools URL submission tool that handles the day-to-day pings.

The verification gap is smaller but trips Personal-plan owners up. Squarespace's own help article⁵ states the rule: the meta tag method works only on plans that support Code Injection (Core, Plus, Advanced, Business, Commerce, legacy Personal pre-2022). On current Personal plan, the CNAME record method is the only path — and most Bing Webmaster setup walkthroughs assume the meta tag and gloss over the CNAME workflow. The bing-webmaster leaf documents both methods step by step.

Each of the next three sub-sections names one lever, the Squarespace-specific implementation, and the leaf where the technical depth lives. None of these are novel in isolation; what this hub adds is the Squarespace application — where the platform editor handles the work natively, where it forces a workaround, and where it does not let you in at all.

The verification step is mechanical but the documentation is uneven. Squarespace's canonical help article⁵ covers the meta tag method clearly — paste the tag into Settings > Advanced > Code Injection > Header, click Save, return to Bing Webmaster Tools, click Verify. The CNAME path for Personal plan is documented but not at the same depth, and most third-party walkthroughs assume the meta tag without flagging the Personal-plan exception. The bing-webmaster leaf ships both flows plus the crawl-stats reading guide.

 <!-- Bing Webmaster Tools verification --> <meta name="msvalidate.01" content="YOUR-VERIFICATION-CODE" /> 

The IndexNow protocol⁴ is straightforward: 8-128 hex character API key, hosted at https://yoursite.com/your-key.txt, then either a single-URL GET to https://www.bing.com/indexnow?url=...&key=... or a bulk POST to the same endpoint with up to 10,000 URLs per request. Microsoft's getting-started guide³ walks the four-step setup. The Squarespace constraint is that you cannot put the key file at the literal site root — the URL Mappings + page-slug workaround that the llms.txt cluster documents is the same pattern that hosts the IndexNow key here. The IndexNow leaf ships the full setup, the URL submission tool walkthrough, and the scope/limit notes (10,000 URLs per day per host on Bing, after which submissions get rate-limited).

The 134-167 word passage band is the practical implementation of the "clear, direct answer at the top of every section" pattern Search Engine Land's 2026 GEO research⁹ identifies. Copilot's grounding chain reads the top of the candidate pages first and synthesises from passages that hold up on their own — same as ChatGPT, same as AI Overviews, same as Perplexity. A site that has done this work for ChatGPT does not need to redo it for Copilot. The ChatGPT content-format leaf covers the Squarespace block-by-block implementation; the same passage discipline applies here.

The dashboard surfaces the data Microsoft's own announcement¹ describes in plain terms: a publisher can see how often their content was cited in AI answers during a chosen time frame, which URLs were cited most often, what the average daily citation reach looked like, and which internal grounding queries triggered the citations. Search Engine Journal's coverage of the launch¹⁰ notes Microsoft is the first major AI search provider to offer this kind of direct feedback, and Fabrice Canel from the Bing team has framed it as "just a preview" with more data and features rolling out through 2026.

The practical workflow for a Squarespace owner: check the AI Performance dashboard weekly during the first month after install, then monthly. Watch for the per-URL citation list to confirm which pages are being grounded against. Read the grounding queries column to see which question phrasings are surfacing your content — this is the closest thing to a query-level intent map any AI engine currently publishes. The 10-point checklist bakes the AI Performance review into the measurement group.