Additionally, is websites just another word for servers?
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They are called instances. One instance can have multiple servers as backup.
Example: An instance can have a server in New York State and California, if the New York server caught fire, they can redirect you to the California backup server.
And one server can host multiple instances 👍
So servers are sort of batteries for instances/websites, right?
Youre right. “Servers” are just computers that do all the work behind a website.
But when it comes to lemmy people sometimes use “server” and “instance” to refer to the same thing: what lemmy.ml, lemmy.world, and others are.
Which, let’s be honest, is not the case with most instances… not trolling, just saying 🤷.
If by websites you mean instances, then currently close to 1250. Here is a list of them for you.