What is the difference .NET Core and Node.js

Asynchronous and synchronous processing models: both are equally good
community support : .Net Core has more support in stackoverflow(4M) and C#Corner(2M+)
Platform support: both supports windows and Linux
Scalability : Both are equally scalable and depends upon architecture,fits into microservices architecture equally well.
NET Core vs Node.js performance: Core has better performance
Stability reliability and security : Core is winner
Companies using Node.js :Netflix, PayPal,Medium, eBay.
Companies using .NET Core : Dell, Stack Overflow, Intel, Intuit, Cisco, Morgan Stanley, Siemens