alt Hacker NewsBecause an average request would have to travel half the globe, so setting up a simple HTTPS connection would already take a second. That's completely unacceptable for static content.
Not only would transfer be slow, they would also be much more pressing on the network as the request would occupy huge stretches and many interconnects and switches.
Furthermore, it hardens the website against DDoS and adds robustness for regional failures.
Minority of sites have global traffic. This is especially true for non-English sites.
So, while average request may have to travel quarter (not half) of the Internet globe, median request from the set of requests that matter has much lower latency.
Barcelona to Stockholm is about 65ms, ~35ms to Amsterdam, ~43ms to Frankfurt.
HTTP/3 is ubiquitous, you don’t get TCP handshake penalty anymore in major browsers.