Built for Speed and Reliability
LaunchDarkly is built from the ground up to securely manage your software features. We are independently audited, and SOC 2 Type II certified. A global CDN ensures the lowest latency without remote requests. And our streaming architecture serves flag changes in milliseconds.
We Push Changes When They Happen
We use server-sent events (SSE), a protocol for one-way real-time messaging, to send messages to your servers whenever you change feature flag rules on your dashboard. The SSE connection is handled automatically by our SDKs.
A Resilient Solution
A feature flag will always be available—all flags are stored locally and backed up by our globally distributed CDN provider. Even if the CDN goes down (we use Fastly, a widely-used CDN provider), your servers will continue operating with the last set of feature flag rules, so your customers will continue seeing the right set of features.
The LaunchDarkly Relay Proxy establishes a connection to the LaunchDarkly streaming API, then proxies that stream connection to multiple clients. The relay proxy lets a number of servers connect to a local stream instead of making a large number of outbound connections to stream.launchdarkly.com. The relay proxy can be configured to proxy multiple environment streams, even across multiple projects.
Built for Scale
We can handle your biggest requests.
6 Trillion Feature Flags
Served to users daily.
14 Million Mobile Devices & Browsers
Served world-wide daily.
3 Million Servers
Reached world-wide daily.