Bingbot
by Microsoft
Search engine UA + IP range
Crawls pages for a traditional search index, which is what lets them rank.
Microsoft crawler for Bing Search indexing.
What it usually means
Bing is crawling this page for its search index, which also feeds Copilot and DuckDuckGo results.
How to identify it
User-Agent tokens
bingbot robots.txt stanza
User-agent: Bingbot How it's verified
Published IP-range endpoints
Currently loaded ranges (sample) Refreshed Jul 20, 2026
157.55.39.0/24207.46.13.0/2440.77.167.0/2413.66.139.0/2413.66.144.0/2452.167.144.0/2413.67.10.16/2813.69.66.240/2813.71.172.224/28139.217.52.0/28 1 IP source configured
Reverse DNS suffixes
.search.msn.com Sources
More from Microsoft
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