Interesting break-down of a high-speed website

I found this interesting video:?https://www.youtube.com/watch?v=-Ln-8QM8KhQ.?It talks about a super-fast website that uses almost everything needed to make it extremely fast. It does not use any JavaScript frameworks or libraries. In the video, he mentions they use asp.net (I do not know asp.net). I thought of sharing this as an article.