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 288,691 websites Kestrel Customers. We know of 65,471 live websites using Kestrel and an additional 223,220 sites that used Kestrel historically and 30,719 websites in the United States.
Get a list of 288,691 websites using Kestrel which includes location information, hosting data, contact details, 65,471 currently live websites and an additional 181,891 domains that redirect to sites in this list. 223,220 sites that used this technology previouslyand 30,719 websites in the United States currently using Kestrel.
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