GitHub is at a scale that provides exposure to interesting aspects of running a major site and are working to mature and level-up many parts of our infrastructure as we grow. One of the areas where this is evident is in how your requests find their destination using DNS and make their way into our sites over transit and peering. Many organizations are either too small to need to tackle these sorts of problems or so large they have groups to maintain existing solutions for each portion of them. It is really compelling to be able to directly work on such projects and closely with great engineers who are solving others still.
The foundation is built with links to Internet providers referred to as transit. Conceptually they’re similar to the connection you have at home, a link through which you can reach any other point on the Internet. The biggest