We are replacing the de facto protocol the internet has used for decades with QUIC, the latest and most radical step we’ve taken to optimize our network protocols to create a better experience for people on our services. Today, more than 75 percent of our internet traffic uses QUIC and HTTP/3 (we refer to QUIC and HTTP/3 together as QUIC). QUIC has shown significant improvements in several metrics
![How Facebook is bringing QUIC to billions](https://cdn-ak-scissors.b.st-hatena.com/image/square/83405d77f708dee843f791c008d225c35ac2c7ea/height=288;version=1;width=512/https%3A%2F%2Fengineering.fb.com%2Fwp-content%2Fuploads%2F2020%2F10%2FFBQUIC2.png)