Anycast DNS explained
With Anycast DNS are established several servers, each of them in a separate geographical location, and they all can provide the same IP. Therefore, the DNS data about your domain name is duplicated on several servers.
The closest DNS server answers the request of the user. If one of the servers is not functioning, the next closest and available DNS server will answer the request. As a result, factors such as loading time, waiting for a response, and the users’ overall experience are a lot better.