How does an internet providers’ server connect to a different internet providers’ server, so you can navigate around the world without be directly connected to the server hosting a website?
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ISPs connect their networks to each other at Peering Points. These are typically windowless buildings with few workers in them scattered around the world. In these data centers each ISP has boundary gateway routers and fibres that run to the other ISPs.
You can picture the internet as you sitting in your home and your home on your ISP’s street. You have an assistant that can go fetch things for you if you give them an address.
Say you tell your assistant to go get you google.com . Your assistant goes out of your house to the street (this is your home being connected directly to your ISP). And then travels on the streets towards the freeway (this is the internal Network at the ISP, moving towards an interconnection point to another Network). The freeway takes him to another town with it’s own network of small streets (another network/ISP) where he arrives at Google and asks for a page.
I’m skipping a whole lot of stuff here, but you can think of interconnected networks with this metaphor.
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