We use a global network of geographically distributed servers (cloud hosting), so you can be confident that the font files will be available at all times. Specifically, we use Amazon Web Services (AWS), a backbone infrastructure that guarantees the highest possible uptime. The hosting is scalable and can adapt to any kind of application, no matter how fast it grows or how big it gets.
Furthermore, hosting font files on external servers makes loading faster, as font files are subject to the same connections-per-hostname limits as other resources. Loading them from the same server might block other downloads. Using reliable external hosting delivers faster download times by avoiding the blocking issue.