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 363,819 websites that are Kestrel Customers. We know of 125,547 live websites using Kestrel and an additional 238,272 sites that used Kestrel historically and 55,864 websites in the United States.
Get a list of 363,819 websites using Kestrel which includes location information, hosting data, contact details, 125,547 currently live websites and an additional 498,139 domains that redirect to sites in this list. 238,272 sites that used this technology previouslyand 55,864 websites in the United States currently using Kestrel.
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