# Diversifying our Content Delivery Networks Over the past few weeks, the [Infrastructure Team](https://www.rust-lang.org/governance/teams/infra) has been working on a setting up a second [Content Delivery Network](https://en.wikipedia.org/wiki/Content_delivery_network) for releases and crates. ## What is changing Rust releases (`static.rust-lang.org`) and crates (`static.crates.io`) will in the future be served through both [AWS CloudFront](https://aws.amazon.com/cloudfront/) and [Fastly](https://www.fastly.com). This is a transparent change to the infrastructure that doesn't require users or developers to take any action. We expect no downtime for Rust users as part of the migration. This also covers only the CDNs for releases (`static.rust-lang.org`) and crates.io (`static.crates.io`), no changes are planned for the rest of Rust's domains. ## Timeline We are planning to start the rollout of the new CDN on Tuesday, January 24rd, with `static.crates.io`. The rollout will happen very gradually over a period of time. We will start to send a small percentage of traffic through [Fastly](https://www.fastly.com/), while observing the performance and reliability of the new network. As we gain confidence, we will slowly increase the amount of traffic. Once `static.crates.io` has been deployed, we will start working on `static.rust-lang.org`. ## Report issues If something _does_ break, please let the [Infrastructure Team](https://www.rust-lang.org/governance/teams/infra) know on [#t-infra on Zulip](https://rust-lang.zulipchat.com/#narrow/stream/t-infra).