How to connect to a socketio server hosted on render?

I have a node.js socketio app hosted on
The app’s client is able to connect to the server fine, since it knows it’s https
I want to connect to this socketio app from a microcontroller.
I need some ca to signal to the server that it is a trusted source.
Should i use a self signed CA for my microcontroller or can i get one from

Hi there,

I recommend you use your own certificate for this, as anything you could get from Render wouldn’t last more than 90 days. It’s hard to give specific advice here without knowing exactly how your microcontrollers do the “trusted source” part with your Render service.


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