Kestrel is a cross-platform web server for ASP.NET Core.
https://docs.microsoft.com/en-us/aspnet/core/fundamentals/servers/kestrel?view=aspnetcore-2.2
Web Servers
Get access to data on 363,337 websites that are Kestrel Customers. We know of 116,733 live websites using Kestrel and an additional 246,604 sites that used Kestrel historically and 52,814 websites in the United States.
Get a list of 363,337 websites using Kestrel which includes location information, hosting data, contact details, 116,733 currently live websites and an additional 464,003 domains that redirect to sites in this list. 246,604 sites that used this technology previouslyand 52,814 websites in the United States currently using Kestrel.
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