# MicrosoftPreview

Bing says MicrosoftPreview generates page snapshots for Microsoft products, with desktop and mobile variants. The published strings contain MicrosoftPreview/2.0. The help URL HTML is an application shell. The article was read from the help API that page loads, ArticleId 8c184ec0. The page says robots.txt files can be configured to tell Bing crawlers how to interact with the site. It does not say that this crawler obeys every directive. This check matches the whole token and still reports the RFC 9309 decision.

- Operator: Microsoft
- Kind: preview
- robots.txt: tells_how_to_interact. The vendor says a robots.txt file can be configured to tell this crawler how to interact with the site. The cited page does not say that the crawler obeys every directive.
- HTTP user-agent: Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; MicrosoftPreview/2.0; +https://aka.ms/MicrosoftPreview) Chrome/W.X.Y.Z Safari/537.36 The page also prints a mobile string: Mozilla/5.0 (Linux; Android 6.0.1; Nexus 5X Build/MMB29P) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/W.X.Y.Z Mobile Safari/537.36  (compatible; MicrosoftPreview/2.0; +https://aka.ms/MicrosoftPreview). W.X.Y.Z is the page's placeholder. The page does not print a separate robots.txt User-agent line.
- IP list: none on the cited page
- Source: https://www.bing.com/webmasters/help/which-crawlers-does-bing-use-8c184ec0 (retrieved 2026-10-18)

## JSON

`curl -s https://whosthatbot.com/v1/crawlers/microsoftpreview`

## Check this token

tools/call with name check_robots is the same check at https://whosthatbot.com/mcp. Send `Content-Type: application/json` and `Accept: application/json, text/event-stream`. The pasted file disallows MicrosoftPreview on `/docs` and allows `*`. The call does not fetch a host.

```
curl -s https://whosthatbot.com/mcp -H 'content-type: application/json' -H 'accept: application/json, text/event-stream' -d '{"jsonrpc":"2.0","id":1,"method":"tools/call","params":{"name":"check_robots","arguments":{"robots_txt":"User-agent: MicrosoftPreview\nDisallow: /\n\nUser-agent: *\nAllow: /\n","path":"/docs","ids":["microsoftpreview"]}}}'
```

That call returns fetched_target false. This row is disallow via group MicrosoftPreview, rule Disallow: /.

Each card paraphrases the linked vendor page and was checked on source.retrieved. This is not legal advice. robots.txt is a request from the site owner. Botcard does not fetch third-party sites and does not suggest ways around a disallow rule.