Træfik Hub Note Caddy-L4 vs Sozu
A side-by-side comparison of two self-hosted reverse proxy & gateways options — licensing, setup difficulty, resource needs, and what each one replaces.
Not the right match-up?
Træfik Hub Note Caddy-L4
Layer 4 proxy module for the Caddy server
VS
Sozu
Hot-reconfigurable HTTP reverse proxy in Rust
| Feature | Træfik Hub Note Caddy-L4 | Sozu |
|---|---|---|
| Category | Reverse Proxy & Gateways | Reverse Proxy & Gateways |
| License | Apache-2.0 | AGPL-3.0 |
| Language | Go | Rust |
| Setup difficulty | Medium | Hard |
| Min. RAM | 64 MB | 128 MB |
| Deployment | binary, source | docker, binary |
| GitHub stars | ★ 1,741 | ★ 3,715 |
| First released | 2020 | 2016 |
| Replaces | HAProxy | HAProxy, Nginx |
Why pick each one
Choose Træfik Hub Note Caddy-L4 if…
- Extends Caddy nicely
- Port multiplexing
Choose Sozu if…
- Released under the AGPL-3.0 license
- First-class Docker support for quick deployment
- Active community (3.7k GitHub stars)
- Written in Rust
Frequently asked questions
Is Træfik Hub Note Caddy-L4 or Sozu better?
Neither is universally better. Sozu has the larger community, while Træfik Hub Note Caddy-L4 is simpler to set up (medium difficulty). Choose based on the comparison table above and your own setup.
Are Træfik Hub Note Caddy-L4 and Sozu free and open-source?
Yes. Træfik Hub Note Caddy-L4 is licensed under Apache-2.0 and Sozu under AGPL-3.0. Both can be self-hosted at no software cost.
Can I run Træfik Hub Note Caddy-L4 and Sozu with Docker?
Træfik Hub Note Caddy-L4: check the project docs for container support. Sozu: yes.