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SSL certificate Nodejs / Socketio required

I want to use secure web ports with socketio and nodejs so that more of my mobile traffic / corporate networks can use websockets.

What level of SSL certificate is required for most browsers to accept a certificate / server as trustworthy. As far as I know, browsers do not have an interface for viewing / allowing SSL connections for websites, since they manage a certificate that they do not trust? Do they just refuse to connect?

What is the minimum level required from the list of examples: https://www.123-reg.co.uk/ssl-certificates/ , and has anyone done any research on how browsers handle different levels of SSL in web connections?

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Websocket security is no different than HTTP security. The process of establishing a TLS connection will occur first to establish a secure connection, and then an HTTP connection will be established through this secure link. An additional step will be taken for the website to update the HTTP session to the socket. This means that everything that works for HTTPS will work for WSS. This link contains a useful diagram.

, "123 SSL" "Domain SSL" , , . , " " - . , root ( , , ), - . WSS, API . (Extended Validation EV) ( ), -, WSS API.

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