BingBot

Operator

Microsoft (Bing)

Type

Search bot

Official page

bing.com

Follows robots.txt

Yes, according to Microsoft (Bing).

Published IP ranges

bing.com/toolbox/bingbot.json

In Vireo

Excluded, reported under Search engines

What it does

Bing's standard crawler, which does most of Bing's crawling.

Bingbot is our standard crawler and handles most of our crawling needs each day.

Microsoft (Bing)

User agent

Requests from BingBot carry a user agent like this:

Mozilla/5.0 (compatible; bingbot/2.0; +http://www.bing.com/bingbot.htm)

Device Detector identifies it with this pattern (a case-insensitive regular expression):

MSNBot|msrbot|bingbot|bingadsbot|BingPreview|msnbot-(UDiscovery|NewsBlogs)|adidxbot

Anyone can put any name in a user agent. Where the operator publishes IP ranges, checking the request's address against them is the way to confirm a visit is genuine.

Worth knowing

Bing says its rendering engine tracks the latest stable Microsoft Edge, but the page doesn't say in so many words that bingbot executes JavaScript. Crawl rate is set in Bing Webmaster Tools, not robots.txt.

We regularly update our web page rendering engine to the most recent stable version of Microsoft Edge.

Microsoft (Bing)

How Vireo counts BingBot

Vireo keeps requests from BingBot out of your pageviews and visitors and counts them on its bot report under Search engines, so you can see how much it left out rather than wonder why your server logs show more traffic.

Checked by running Vireo Analytics' own bot filter over BingBot's user agents.

Sources

• Microsoft (Bing): crawler documentation (checked October 2026)
• BingBot information page (search.msn.com)
• Matomo Device Detector, bots.yml (LGPL-3.0)