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MicrosoftPreview

MicrosoftPreview fetches a URL when a Microsoft product needs a page snapshot.
MicrosoftPreview
Preview

What is MicrosoftPreview?

MicrosoftPreview fetches a URL when a Microsoft product needs a page snapshot. The record does not name every product or user action that can trigger it, so the safest reading of a hit is narrow: Microsoft requested a preview of that URL, not necessarily a crawl of the surrounding site.

There are desktop and mobile variants. Their browser portion changes as Microsoft updates it to match the current Microsoft Edge version, so rules that depend on an exact Chrome version will age badly. Cloudflare's recorded example is Mozilla/5.0 (compatible; MicrosoftPreview/2.0; +https://aka.ms/MicrosoftPreview).

MicrosoftPreview is the stable token. The entry is not IP verified and Cloudflare provides no signature-agent URL, which means a matching header cannot prove Microsoft sent the request. The robots fields also disagree: this bot's metadata says it follows robots.txt, but Cloudflare's bot directory marks followsRobotsTxt as false.

Nothing in the record assigns MicrosoftPreview a role in Bing indexing, Copilot retrieval, AI citations, or model training. A snapshot may be shown inside a Microsoft product, but the visit should not be counted as AI search visibility or taken as evidence that the page entered a training dataset.

Indirectly relevant

Is MicrosoftPreview relevant for AI search?

Indirectly. MicrosoftPreview has no AI product of its own, but its output can end up in the systems that AI answers draw on.

MicrosoftPreview fetches pages to build link-preview cards. It does not feed an AI index, but it reads the same Open Graph and structured metadata that AI systems parse to understand your pages, so clean preview metadata doubles as AI-friendly metadata.

How to handle MicrosoftPreview

Allow the bot to reach public pages if you want Microsoft products to generate their snapshots. Avoid matching the full browser string because the Chrome component is expected to change; use the stable token where a user-agent rule is appropriate.

A site-wide robots.txt preference is:

User-agent: MicrosoftPreview
Disallow: /

Because the two catalog fields conflict, confirm behavior in access logs and enforce a required block with the CDN or application. Do not use the preview bot as a reason to expose authenticated pages or internal deployment URLs.

Examples

  • A site sees MicrosoftPreview request the same public landing page with desktop and mobile browser details while Microsoft generates product snapshots.
  • A brittle firewall rule stops matching after the Chrome version changes; replacing the version check with the stable `MicrosoftPreview` token restores the intended policy.
  • An analyst records the request as preview traffic and does not add it to Bing or Copilot citation metrics.

Frequently asked questions about MicrosoftPreview

Learn about AI visibility monitoring and how Promptwatch helps your brand succeed in AI search.

Microsoft operates MicrosoftPreview for page snapshots used by Microsoft products.

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