Apache Traffic Server review
A self-hosted proxy CDN with caching, TLS termination, WebSockets, and plugins.
Reviewed by iTechGuides Editors · Editorial team · Updated Oct 2026
Apache Traffic Server is open-source software for caching and proxying HTTP/1.1 and HTTP/2 traffic. It supports both forward and reverse proxy operation, making it a fit for enterprises, internet service providers, backbone providers, large intranets, content providers, and CDN environments that want to operate the delivery layer themselves. The project runs on macOS and Linux and is positioned for high-volume traffic rather than for teams seeking a hosted CDN dashboard.
Its strongest capability is the combination of response caching, cache storage, and traffic handling controls. Apache Traffic Server can terminate TLS/SSL connections with certificate selection, proxy WebSocket connections, and apply connection controls. The plugin API extends HTTP processing and protocol behavior, while the rate-limit plugin provides request rate limiting. Logging, monitoring, and statistics support operational visibility. Administrators can install the software from source or operating-system packages and manage it through command-line tools and configuration files.
The trade-off is operational ownership. Apache Traffic Server is self-hosted software, so teams must provide the infrastructure, deployment process, configuration, monitoring, and maintenance needed to run a proxy CDN. It is a strong choice for organizations that need control over caching, proxy behavior, TLS termination, WebSockets, and extensibility. Teams that want a vendor-hosted global CDN service, managed infrastructure, or a simpler setup should choose a managed CDN alternative instead.
Apache Traffic Server pros and cons
- Where it wins
- Supports forward and reverse proxy deployments with response caching
- Includes TLS termination, WebSocket proxying, and connection controls
- Extends HTTP processing through a plugin API and rate-limit plugin
- Where it doesn't
- Requires self-hosted installation, configuration, and ongoing administration
- Does not provide a vendor-hosted managed global CDN service
- Configuration relies on command-line tools and configuration files
Apache Traffic Server fact sheet, pricing and score →
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