BingVideoPreview
Microsoft's link preview fetcher.
- Operator
- Microsoft
- In the user agent
BingVideoPreview- robots.txt token
BingVideoPreview- Follows robots.txt
- does not say whether it follows robots.txt
- Official documentation
- www.bing.com
- Checked on
- 2026-11-11
What is BingVideoPreview?
BingVideoPreview is Microsoft's link preview fetcher. It loads a page to show its preview when a link is shared in a chat or social network.
The operator's description: Builds video previews in Bing.
(www.bing.com)
How do I block or allow BingVideoPreview?
With robots.txt, using the token BingVideoPreview. Microsoft does not say whether it follows robots.txt. To block the whole site:
User-agent: BingVideoPreview
Disallow: /To allow it, use Allow instead of Disallow. Before blocking, weigh what it brings: look at how often it visits and what it brings before deciding.
How do I see whether BingVideoPreview visits my site?
In your server or CDN access logs, look for BingVideoPreview in the user agent. Google Analytics does not show these visits: agents do not run its JavaScript.
Anyone can copy the name in a user agent, so counting log lines is not enough. Knocklog reads your site's traffic on any host, confirms who is who, and shows how often BingVideoPreview came, which pages it read and what that brought you.
How do I know it is really BingVideoPreview?
The IP's reverse DNS, confirmed forward and back, must end in .search.msn.com.
Knocklog runs this check on every visit and separates the genuine agent from impostors.
Does BingVideoPreview visit your site?
See in seconds how your site treats AI agents. Then connect your traffic to learn who really came.
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