Anycast & QUIC
Now, let’s get into the specifics. Single IPs with worldwide reach are offered via global Anycast IPs. It enables Google Cloud to automatically direct users to the closest edge cache rather than relying on DNS propagation delays, which can reduce availability. Moreover, it supports the fast protocol between caches and end-to-end HTTP.
For lossy mobile networks, QUIC is the best multiplex-to-stream transport over UDP since it lowers latency.
What is Google Cloud CDN?
Cloud CDN will cache the content at edge locations that are located around the world. By doing so, we can reduce the latency, which improves the performance of our applications. It will enable users to access the content from nearby edge locations, regardless of the app or website you have, there’s a reasonable probability that your users are dispersed across the globe and aren’t necessarily local to your servers.
This implies that the requests go over a wide area of the public internet, resulting in unpredictable and annoying user experiences. In this situation, Cloud CDN is useful.