Safe Official docs Search Engines

Bing Page Snapshot

Operated by Microsoft

Quick Facts

User-Agent:
BingPreview
Category:
Search Engines
Operator:
Microsoft
Safety:
Safe
Blocking Impact:
Low - No SEO ranking impact
SEO Impact Score:
2/10
Official docs:
www.bing.com

Confirmed by the operator

Microsoft names BingPreview on its own documentation page, linked above. The token, purpose and robots.txt behaviour on this profile come from that page, re-checked on September 22, 2026.

What is Bing Page Snapshot?

Bing Page Snapshot is an AI search-index crawler operated by Microsoft. It collects and indexes web content so it can be surfaced as citations or answers inside Microsoft's AI search experience. Allowing Bing Page Snapshot can increase your visibility in AI-powered search results, which is why most sites choose to permit it.

Bing Page Snapshot is an AI search-index crawler operated by Microsoft. It collects and indexes web content so it can be surfaced as citations or answers inside Microsoft's AI search experience. Allowing Bing Page Snapshot can increase your visibility in AI-powered search results, which is why most sites choose to permit it.
Bing Page Snapshot uses the user-agent token BingPreview. You can control it via robots.txt, meta tags (noai), or the emerging llms.txt standard. Robots.txt is voluntary; for hard enforcement, combine it with server-level IP blocking.

What happens if you block Bing Page Snapshot?

🔶 AI Visibility Trade-off - Blocking Bing Page Snapshot will not hurt Google or Bing rankings, but it can remove your content from AI search answers and assistant citations powered by this crawler. Block only if you have a deliberate reason.
Generally safe to allow; provides legitimate crawling value.

How to block Bing Page Snapshot with robots.txt

<code>User-agent: BingPreview</code> - Matching is case-insensitive. Robots.txt is fetched from the root of each subdomain separately.

Block completely (robots.txt)
User-agent: BingPreview Disallow: /
Allow all (robots.txt)
User-agent: BingPreview Allow: /
Block private only (robots.txt)
User-agent: BingPreview Disallow: /private/ Disallow: /api/ Disallow: /admin/ Allow: /
Nginx server block
# Nginx: Hard-block Bing Page Snapshot if ($http_user_agent ~* "BingPreview") { return 403 "Bot blocked"; }
Apache .htaccess
# Apache: Hard-block Bing Page Snapshot SetEnvIfNoCase User-Agent "BingPreview" bad_bot Order Allow,Deny Allow from all Deny from env=bad_bot
Meta robots tag
<meta name="robots" content="noindex, nofollow">
X-Robots-Tag header
X-Robots-Tag: noindex, nofollow

Is Bing Page Snapshot safe to allow?

Yes, Bing Page Snapshot is a safe and legitimate crawler operated by Microsoft. It follows the Robots Exclusion Protocol (RFC 9309) and can be controlled with standard robots.txt rules.
Verify by reverse-DNS lookup: legitimate Bing Page Snapshot requests resolve to Microsoft's domain.

What does Bing Page Snapshot do?

Understanding Bing Page Snapshot's purpose helps you decide whether to allow or block it.

  • Indexes web pages for AI-powered search answers
  • Surfaces your content as citations inside AI search results
  • Builds a knowledge index used to answer user questions
  • Allowing it can increase visibility in AI search
  • Respects robots.txt directives

Frequently Asked Questions

What is the official user-agent string for Bing Page Snapshot?
The official user-agent string for Bing Page Snapshot is: BingPreview. Use this exact string in robots.txt, Nginx, Apache, or Cloudflare firewall rules to target this bot. Matching in robots.txt is case-insensitive. Verify a request genuinely comes from Bing Page Snapshot by performing a reverse-DNS lookup on the source IP.
Is Bing Page Snapshot safe?
Yes, Bing Page Snapshot is a safe and legitimate crawler operated by Microsoft. It follows the Robots Exclusion Protocol (RFC 9309) and can be controlled with standard robots.txt rules.
Will blocking Bing Page Snapshot hurt my SEO?
🔶 AI Visibility Trade-off - Blocking Bing Page Snapshot will not hurt Google or Bing rankings, but it can remove your content from AI search answers and assistant citations powered by this crawler. Block only if you have a deliberate reason.
How do I block Bing Page Snapshot in robots.txt?
Add the following lines to your /robots.txt file:
User-agent: BingPreview
Disallow: /

This instructs Bing Page Snapshot not to crawl any path on your site. To block only specific sections, replace / with the path (e.g., Disallow: /blog/).
Does Bing Page Snapshot respect robots.txt?
Bing Page Snapshot is operated by Microsoft and is expected to fetch and parse /robots.txt before crawling, following RFC 9309. For hard enforcement, combine robots.txt with server-level IP or user-agent blocking.
How do I verify if Bing Page Snapshot is crawling my site?
Search your web server access logs for the string BingPreview (case-insensitive: grep -i "BingPreview" /var/log/nginx/access.log). Filter by user-agent in your log analytics tool (GoAccess, AWStats, etc.).

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