Do I need an nginx node?

Question

Node.js

Tell me, do you need an nginx node?
And how relevant is it today?
As I understand it, Apache and nginx were created in those days when there were almost no server languages?

Answer 1

Not needed, but often used.
Firstly, for caching requests, secondly, for balancing between several nodes (points / servers), and thirdly, for returning statics.
Well, sometimes reverse proxy to separate domains on the same server.