BingVideoPreview

Verifiable

Microsoft crawler, listed among Bing's crawlers, that fetches pages to generate video previews shown in Bing. It runs desktop and mobile variants and is verifiable through the same reverse-DNS check as Bing's other crawlers.

Operated by Microsoft · Official documentation

User agents

Patterns this directory matches, with real observed strings.

regexBingVideoPreview/\d
observedMozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; BingVideoPreview/1.0; +https://aka.ms/microsoftbots) Chrome/W.X.Y.Z Safari/537.36
observedMozilla/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; BingVideoPreview/1.0; +https://aka.ms/microsoftbots)

How to verify

Reverse-DNS check a client IP

dig -x <client-ip> +short   # expect a hostname matching *.search.msn.com

Reverse-DNS suffixes: *.search.msn.com

Good Bot Practices scorecard

Identifies honestly
Stable UA token documented (1 pattern)
Verifiable
Verifiable
Respects robots.txt
Honors robots.txt
Behaves
Crawl-rate behavior is operator-declared; not machine-verifiable from this dataset
Reachable operator
Operator and documentation published

Measured against the Good Bot Practices.