Bingbot

What does Bingbot do?

Bingbot crawls the web to discover and refresh pages for Bing's search index. Crawled content feeds Bing Search results, Bing Chat, Microsoft Copilot, and other AI-powered answer features across Microsoft's ecosystem. Bing Search drives direct referral traffic through clickable links in standard results, and Bing's AI features often include source citations that link back to your site.

Should I allow and optimize for Bingbot to drive organic growth?

Bingbot is the gateway to Bing Search, which serves hundreds of millions of queries per day. Allowing it is essential for appearing in Bing results, Bing Chat, and Microsoft Copilot responses. All of these surfaces drive direct referral traffic through clickable links and source citations. Bing also powers search results in DuckDuckGo, Yahoo (in some markets), and other partners, amplifying your reach beyond bing.com itself. Blocking Bingbot removes your site from all of these channels.

Data Usage & Training

Content crawled by Bingbot may be used to train Microsoft's generative AI foundation models. Pages without NOCACHE or NOARCHIVE meta tags can appear in Bing Chat answers and feed into training data. You can limit this: adding a NOCACHE meta tag restricts training use to URL, title, and snippet only. Adding NOARCHIVE prevents your content from being used for training entirely.

How Bingbot Accesses Content

Here's how Bingbot accesses your site and understands your content:

• Fetches HTML via standard HTTP requests using a well-known user-agent string
• Fully renders JavaScript (uses a Chrome-like UA variant for JS rendering)
• Follows links to discover new pages and re-crawls known pages for freshness
• Processes sitemaps declared in robots.txt
• Respects robots.txt Disallow, Allow, Crawl-delay, and Sitemap directives
• Supports meta robots tags, X-Robots-Tag headers, and Bing-specific directives via name="bingbot"

Bingbot crawls continuously using an algorithmic approach that prioritizes page discovery and freshness. You can adjust crawl rate through the Crawl Control feature in Bing Webmaster Tools, or by setting a Crawl-delay directive in a Bingbot-specific robots.txt section.

How to Block or Control Bingbot

To block Bingbot entirely via robots.txt: User-agent: Bingbot Disallow: / To block specific paths while allowing others, use Disallow and Allow rules in a Bingbot-specific section. Be aware that bot-specific sections override the generic (*) section entirely, so repeat any general directives you still want applied. To prevent indexing without blocking crawls, use a "noindex" meta robots tag or X-Robots-Tag header. To limit AI training use, add "nocache" (restricts to URL/title/snippet) or "noarchive" (prevents training use entirely). For IP-based blocking, reference the published IP list at https://www.bing.com/toolbox/bingbot.json. Verify any IP claiming to be Bingbot using reverse DNS lookup (PTR should resolve to search.msn.com) followed by forward DNS confirmation, or use Microsoft's Verify Bingbot tool. Bing Webmaster Tools also offers a Block URLs feature and Crawl Control settings for finer-grained management.

Common Issues & Troubleshooting

Watch out for these common problems when working with Bingbot:

• User-agent strings are easy to spoof. Always verify Bingbot via reverse/forward DNS or the published IP list before trusting the UA.
• Bot-specific robots.txt sections override generic (*) rules entirely. If you add a Bingbot section, repeat any global directives you still need applied.
• Crawl-delay is non-standard and behaves differently across crawlers. Test your configuration and monitor crawl stats in Bing Webmaster Tools.
• Accidentally blocking Bingbot removes your site from Bing Search, Bing Chat, Copilot, and all Microsoft-powered search partners.
• CloudFlare and similar bot protection services may block Bingbot if not configured to allowlist its IP ranges.
• NOARCHIVE meta tags prevent content from appearing in Bing Chat answers and AI training, which may reduce your visibility in AI-powered features even though standard search indexing continues.