NaviServer
NaviServer, a high performance web server written in C and Tcl
...), pooled database connections, thread shared arrays, introspection commands, mass virtual hosting (no server restart), watchdog, control port and command mode, efficient handling of down-/uploads with async I/O, IPv4/IPv6
Core developers: Vlad Seryakov, Stephen Deasey, Zoran Vasiljevic, Gustaf Neumann
Source: https://github.com/naviserver-project/naviserver Info: https://wiki.tcl-lang.org/page/NaviServer Documentation: https://naviserver.sourceforge.io/n/toc.html