Traefik vs Caddy vs Nginx: Which Reverse Proxy Should You Use?

Traefik vs Caddy vs Nginx: Which Reverse Proxy Should You Use?

Traefik, Caddy and Nginx can all sit in front of your apps, terminate HTTPS and route requests to the right backend. They differ in what they’re built around. Traefik is built around discovering containers automatically. Caddy is built around automatic HTTPS and a short config file. Nginx is the general-purpose web server and proxy that most of the internet already runs. This comparison explains which one fits which setup, with configuration examples for each.

Short answer: choose Traefik if your apps run in Docker and come and go often; Caddy if you want HTTPS with the least configuration; Nginx if you need maximum flexibility, static file performance, or the largest pool of documentation and examples.

Traefik vs Caddy vs Nginx at a Glance

Licences from each project’s GitHub repository, checked 26 October 2026 (latest releases: Traefik v3.7, Caddy v2.11, Nginx 1.31).

Traefik: Built for Containers

Traefik watches Docker (or Kubernetes) and creates routes from labels on your containers. Start a new container with the right labels and it’s live, with a certificate, without touching Traefik’s config. A minimal Docker Compose setup:

services:
  traefik:
    image: traefik:v3.7
    command:
      - --providers.docker=true
      - --providers.docker.exposedbydefault=false
      - --entrypoints.web.address=:80
      - --entrypoints.websecure.address=:443
      - [email protected]
      - --certificatesresolvers.le.acme.storage=/letsencrypt/acme.json
      - --certificatesresolvers.le.acme.httpchallenge.entrypoint=web
    ports:
      - "80:80"
      - "443:443"
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock:ro
      - ./letsencrypt:/letsencrypt

  app:
    image: my-app:latest
    labels:
      - traefik.enable=true
      - traefik.http.routers.app.rule=Host(`app.example.com`)
      - traefik.http.routers.app.entrypoints=websecure
      - traefik.http.routers.app.tls.certresolver=le
      - traefik.http.services.app.loadbalancer.server.port=3000

Strengths: zero-touch routing for new containers, built-in load balancing and health checks, a live dashboard, middlewares for redirects, auth and rate limiting.

Trade-offs: the label syntax is verbose and errors are easy to make; it doesn’t serve static files; and mounting the Docker socket gives Traefik broad access to the host, so mount it read-only and keep Traefik updated.

Caddy: HTTPS With Almost No Configuration

Caddy gets and renews certificates automatically for every site in its config. A complete reverse proxy with HTTPS:

app.example.com {
    reverse_proxy localhost:3000
}

www.example.com {
    root * /var/www/site
    file_server
}

That’s the whole file. Caddy also redirects HTTP to HTTPS on its own.

Strengths: the simplest config of the three, automatic HTTPS by default, serves static files, good defaults (HTTP/2 and HTTP/3).

Trade-offs: fewer examples and third-party modules than Nginx, and adding modules means building a custom binary. We compare Caddy and Nginx in more depth in Caddy vs Nginx.

Nginx: The Flexible Default

Nginx is a web server first and a proxy second, and it’s very good at both. The equivalent proxy block:

server {
    listen 443 ssl;
    server_name app.example.com;

    ssl_certificate     /etc/letsencrypt/live/app.example.com/fullchain.pem;
    ssl_certificate_key /etc/letsencrypt/live/app.example.com/privkey.pem;

    location / {
        proxy_pass http://127.0.0.1:3000;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
        proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
        proxy_set_header X-Forwarded-Proto $scheme;
    }
}

Certificates come from Certbot (see Nginx with Let’s Encrypt), and you redirect HTTP yourself.

Strengths: excellent static file and caching performance, fine-grained control over buffering, timeouts and headers, and the largest body of documentation, tutorials and Stack Overflow answers.

Trade-offs: more configuration to write, manual certificate setup, and every change needs a config test and reload.

Performance

For most sites, the proxy is not the bottleneck: your app and database are. Nginx has the strongest reputation for static file serving and very high connection counts, and it’s written in C. Caddy and Traefik are written in Go and are fast enough for the large majority of workloads. If you’re choosing between them for a typical app server, pick on configuration and operations, not raw speed, and measure with your own app if performance really matters.

Which One Should You Choose?

• Many Docker containers, added and removed often: Traefik.

• A few apps or sites, you want HTTPS in minutes: Caddy.

• Static-heavy sites, complex rules, caching, or a team that already knows it: Nginx.

• Kubernetes: Traefik and Nginx both have mature ingress controllers.

Frequently Asked Questions

Is Traefik better than Nginx?
For Docker hosts where containers change often, Traefik is easier because it configures routes from container labels. For static files, caching and fine-grained control, Nginx is stronger.

Is Caddy faster than Nginx?
Nginx is generally regarded as the faster option for static files and very high connection counts. For typical reverse-proxy workloads, both are fast enough that your app is the bottleneck.

Does Traefik serve static files?
No. Traefik is a reverse proxy and load balancer only. Put a small web server such as Nginx or Caddy behind it to serve static files.

Which reverse proxy has automatic HTTPS?
Caddy does it by default for every site. Traefik does it once you configure a certificate resolver. Nginx needs Certbot or another ACME client.

Can I use Traefik and Nginx together?
Yes. A common pattern is Traefik in front for routing and certificates, with Nginx inside an app’s container to serve static files.

Run Your Own Reverse Proxy

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