Abyss Web Server vs. Kestrel vs. Python vs. kWS Comparison Chart

Kestrel is a cross-platform web server for ASP.NET Core. Kestrel is the web server that's included and enabled by default in ASP.NET Core project templates. Kestrel supports HTTPS, HTTP/2 (except on macOS), Opaque upgrade used to enable WebSockets, Unix sockets for high performance behind Nginx. Kestrel is supported on all platforms and versions that .NET Core supports. Some browsers require granting explicit permission to trust the local development certificate. Project templates configure apps to run on HTTPS by default and include HTTPS redirection and HSTS support. The Kestrel web server has constraint configuration options that are especially useful in Internet-facing deployments. There's a separate limit for connections that have been upgraded from HTTP or HTTPS to another protocol (for example, on a WebSockets request). The default maximum request body size is 30,000,000 bytes, which is approximately 28.6 MB.

kWS is a lightweight and fast Web Server especially designed for Android mobile devices. It can be used to host websites and to serve files over HTTP. kWS implements HTTP-1.0. Basic & digest authentication for secure access. Server side includes (SSI). Directory index, directory downloads in tar, tgz & zip formats. Resumable file downloads, built-in Dynamic DNS updates, up to 20 parallel connections, comprehensive HTTP logs. HTTPS/TLS support with BKS & PKCS12 keystores. Password-based file encryption (128 bit AES & Triple DES). GZip file compression, directory index in JSON & XML formats and index sorting, highly configurable with support for up to 999 per-port parallel connections. Directory level configuration, support for more Dynamic DNS providers like ZoneEdit etc. kWS also provides auto start on boot.