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Subspace

Subspace is a transparent proxy that routes HTTP, HTTPS, WebSocket and SOCKS5 traffic through upstream proxies based on hostnames and IP ranges — without terminating TLS. It extracts the SNI from the TLS ClientHello and tunnels the raw bytes, so your traffic is never decrypted.

Routing rules match by exact hostname, domain suffix, glob pattern or CIDR subnet with last-match-wins ordering, and configuration changes are hot reloaded without a restart. Built-in dashboards show live statistics backed by persistent storage, health checks monitor every upstream, and connection pooling plus zero-copy relaying keep it fast.

Read the documentation or browse the source on GitHub.