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Bingbot
MicrosoftHonours robots.txt
Microsoft's search crawler, feeding Bing and by extension Copilot answers. Blocking removes you from Bing and materially reduces Copilot visibility.
User-agent string
Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)
How to verify it
Bing Webmaster Tools' Verify Bingbot tool, or reverse DNS to search.msn.com.
What blocking costs
Blocking removes you from Bing and materially reduces Copilot visibility.
robots.txt rule
# Block Bingbot
User-agent: bingbot
Disallow: /
# Allow everything else
User-agent: *
Allow: /Robots.txt is enough
Microsoft documents Bingbot as honouring robots.txt. Verify with your logs after deploying — a spoofed agent will keep coming.
Generate a full robots.txt
Pick which AI crawlers to allow or block across all 42 agents and copy the file out.
Open the generator →Other Microsoft agents