What is Bingbot?
Direct Answer: Bingbot is a crawler from Microsoft that powers Bing search.
Bingbot crawls web pages to build and maintain the Bing search index. Microsoft uses multiple crawlers including Bingbot, BingPreview, MicrosoftPreview, and AdIdxBot. Bingbot supports crawl-delay directives in robots.txt and provides IP verification via reverse DNS lookup.
User-Agent Identification
The following user-agent strings identify Bingbot in your live traffic data:
bingbot
robots.txt Rules for Bingbot
Respects robots.txt: Yes
Use the following robots.txt rules to control Bingbot access:
# Block Bingbot
User-agent: bingbot
Disallow: /
# Allow Bingbot
User-agent: bingbot
Allow: /Robots.txt is a directive, not a barrier
Microsoft states that Bingbot respects robots.txt. However, configuration mistakes, caching delays, and edge cases mean your directives may not always be followed as expected. Live traffic verification confirms whether Bingbot actually obeys your rules in practice.
Need continuous verification across 500+ bots? Can AI See It automates this.
Crawl Behavior
Request Pattern:Not documented
Official Documentation Quotes
"Bingbot is Bing's web crawler. It collects documents from the web to build a searchable index for Bing Search."
Crawl Activity Index
Relative crawl activity for Bingbot over the past 28 days. Higher values indicate increased crawling intensity compared to the period baseline.
View recent activity data (last 7 days)
| Date | Activity Index |
|---|---|
| Mar 26, 2026 | 88.0 |
| Mar 27, 2026 | 82.7 |
| Mar 28, 2026 | 83.1 |
| Mar 29, 2026 | 81.8 |
| Mar 30, 2026 | 87.3 |
| Mar 31, 2026 | 90.2 |
| Apr 1, 2026 | 88.9 |
Source: Cloudflare Radar
Why track Bingbot traffic?
Measure what Microsoft gives back. Bingbot crawls thousands of your pages — but how much traffic does Microsoft actually send in return? Track referral visits from Microsoft's search products relative to crawl volume.
Monitor crawl budget and indexation health. Bingbot determines which of your pages appear in Microsoft's search results. Tracking its crawl patterns reveals how often your key pages are visited, what gets ignored, and where crawl budget is wasted.
Detect crawl anomalies early. A sudden drop in Bingbot activity can signal indexation problems — before they show up as organic traffic losses.
Catch 4XX and 5XX errors before they hurt rankings. If Bingbot hits broken pages or server errors during crawling, those URLs may be dropped from the index. Early detection in your logs lets you fix the issue before it impacts your organic visibility.
Validate that your robots.txt rules are enforced. Configuring robots.txt is one thing — confirming that Bingbot actually respects your directives is another. Live traffic validation is the only way to verify.
Why live traffic verification instead of Search Console? Search Console shows what Microsoft tells you. Live traffic verification shows what actually happened — including AI-related crawling that Search Console doesn't report.
Read: Live traffic verification vs Search Console for crawl monitoring →Log Verification
To verify Bingbot traffic in your live traffic data:
- Search access logs for the user-agent strings listed above
- Check if the IP addresses match documented ranges (if provided by Microsoft)
- Verify the crawl pattern matches documented behavior
- Use reverse DNS lookup for additional verification if available
IP Verification: Microsoft provides official IP verification via Reverse DNS. View verification instructions →
Bingbot IPs resolve to *.search.msn.com via reverse DNS.
Note: Observed behavior in production environments may differ from official documentation. Live traffic monitoring provides the only reliable verification of actual bot behavior.
Monitor Bingbot alongside 500+ other bots
Track crawl health, detect anomalies, and measure how AI features are changing your referral traffic — all from your live traffic data.
- Crawl frequency, coverage, and error monitoring for Bingbot
- Compare traditional organic referrals vs AI-generated referrals
- Detect fake Bingbot traffic (user-agent spoofing)
Measure business impact from Bingbot
Crawl activity directly impacts organic visibility. The question is: is Bingbot crawling the right pages at the right frequency?
- Crawl coverage: which paths and page types Bingbot is actually crawling
- Crawl freshness: how recently Bingbot visited key URLs
- Health: response code distribution (2xx, 3xx, 4xx, 5xx) with alerts when failed crawls spike
- Referral tracking: Bingbot takes — measure what Microsoft gives back. Track actual visits arriving from Microsoft's products to your site.
Based on your live traffic data and analytics — not synthetic prompt tests.
Official Documentation
View Official Bingbot Documentation →
Information sourced from official documentation. Content generated with AI assistance.