msnbot
by Microsoft
About this crawler
Legacy Microsoft crawler used for search indexing.
Usually means: A search or answer engine is discovering this URL so it can surface your content in results later.
User agent
msnbotReignat matches these as user-agent tokens, not full browser strings. Providers may add surrounding version or product text.
IP verification
Verified when user agent and IP range both match
Reignat first matches the crawler user-agent token, then compares the request IP with published ranges from Microsoft.
1
User agent
Request user agent contains msnbot.
2
Request IP
Server-side tracking forwards the crawler IP seen by your backend.
3
Range check
The IP is compared with published CIDR ranges from the JSON range endpoint.
Sample IP ranges
157.55.39.0/24207.46.13.0/2440.77.167.0/2413.66.139.0/2413.66.144.0/2452.167.144.0/2413.67.10.16/2813.69.66.240/2813.71.172.224/28139.217.52.0/28Showing up to 10 ranges from the published official source.