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

By AiCybr Editorial · Published August 11, 2026

For most small homelabs, choose Caddy if you want the smallest configuration surface and excellent automatic HTTPS; choose Nginx Proxy Manager if you want to manage proxy hosts through a web UI; choose Traefik if your services are created and removed dynamically and you want routing to follow Docker, Kubernetes or other provider metadata.

These three tools can all terminate TLS and reverse-proxy traffic, but they solve the operational problem differently. Caddy is primarily configuration-driven and makes HTTPS unusually automatic. Traefik is provider-driven and can build routing dynamically from platforms such as Docker and Kubernetes. Nginx Proxy Manager wraps an Nginx/OpenResty-based proxy stack in a graphical management workflow that is approachable for operators who do not want to maintain proxy configuration by hand.

As of August 2026, the current upstream releases checked for this guide are Caddy 2.11.4, Traefik 3.7.10 and Nginx Proxy Manager 2.15.1.

Quick recommendation

There is no universal winner. The most important distinction is how configuration enters the proxy.

The architectural difference that matters

Caddy: configuration first

A minimal Caddy reverse proxy can be only a few lines:

photos.example.com {
    reverse_proxy immich-server:2283
}

When a qualifying hostname is configured, Caddy’s Automatic HTTPS subsystem can obtain and renew certificates and redirect HTTP to HTTPS by default. That removes a large amount of certificate boilerplate from small deployments.

Caddy also exposes a JSON configuration model and admin API, but you do not need those features for a typical homelab. A Caddyfile stored beside your Docker Compose project is enough for many installations.

This model is attractive when your services are relatively stable: define a hostname, define its upstream, commit the configuration, reload Caddy.

Traefik: provider and metadata driven

Traefik can read routing state from infrastructure providers. With Docker, a service can carry its own routing metadata as labels:

services:
  app:
    image: example/app
    labels:
      - 'traefik.enable=true'
      - 'traefik.http.routers.app.rule=Host(`app.example.com`)'

Traefik watches Docker events and updates its dynamic configuration as containers change. Its current documentation also lists providers for Docker Swarm, Kubernetes, Nomad, Consul Catalog and others.

That makes Traefik especially useful when the proxy should follow the application lifecycle rather than being edited separately every time a service changes.

The tradeoff is that the routing model has more concepts: entry points, routers, services, middlewares, providers and certificate resolvers. For a five-service static homelab, that can be unnecessary complexity. For a dynamic platform, those abstractions become the reason to use it.

Nginx Proxy Manager: operator/UI driven

Nginx Proxy Manager takes a different route. Instead of making the configuration file or orchestration labels the primary operator interface, it provides a web application for creating proxy hosts, requesting certificates and managing access-related settings.

This is particularly convenient when a person wants to think in terms of:

1. domain name;
2. target host/IP;
3. target port;
4. SSL certificate;
5. optional access controls.

The cost is that the web application’s state becomes part of your operational control plane. You need to protect the admin interface, persist and back up its state, and treat upgrades as application upgrades rather than simply replacing one text configuration file.

Automatic HTTPS and certificate management

Certificate automation is one of the biggest practical differences.

Caddy

Caddy enables HTTPS automatically by default for qualifying hostnames. Its Automatic HTTPS subsystem can manage certificates and HTTP-to-HTTPS redirects without requiring you to build a separate certificate resolver for every route.

For a normal public hostname, this is often the lowest-friction option of the three.

Traefik

Traefik supports ACME certificate resolvers, but they must be explicitly configured. A router that should use a resolver must reference it, or the resolver can be associated through the chosen configuration model.

Traefik supports HTTP-01, TLS-ALPN-01 and DNS-01 challenge patterns. Wildcard certificates require DNS-01, as expected with ACME.

This is more configuration than Caddy’s default path, but it gives explicit control and fits well with declarative infrastructure.

Nginx Proxy Manager

NPM exposes Let’s Encrypt certificate workflows in its UI and supports DNS plugins for DNS-challenge based certificates. This makes certificate setup approachable without requiring the operator to learn the underlying Certbot configuration in detail.

However, DNS-provider plugins are dependencies that should be treated as part of the upgrade surface. NPM’s 2.15.0 release specifically warned that its updated base image, OpenResty, Certbot and Python stack could require DNS-plugin adjustments; 2.15.1 followed with a smaller fix release.

Docker integration: discovery is not the same as proxying containers

All three can proxy traffic to Docker containers. The important question is whether they discover Docker routing automatically.

Caddy has community integrations that can add Docker-label workflows, but that is not the same as Traefik’s built-in Docker provider. This guide compares the upstream core products rather than assuming community plugins are part of the default feature set.

The Docker socket security issue

Traefik’s Docker provider needs access to the Docker API so it can inspect containers and watch changes. The Traefik documentation explicitly warns that unrestricted Docker API access is a security concern because compromise of a component with Docker control-plane access can expose the underlying host.

A common deployment mounts:

- /var/run/docker.sock:/var/run/docker.sock

This is operationally convenient, but it deserves deliberate threat modeling. Options include placing the proxy on a tightly controlled host, using a restricted intermediary/socket proxy where appropriate, or connecting to the Docker API through a protected remote mechanism rather than casually exposing daemon control.

Caddy and Nginx Proxy Manager do not need the Docker API merely to forward traffic to a container on a shared Docker network. That can produce a simpler privilege boundary in static environments.

This does not mean Caddy or NPM is automatically secure. A public reverse proxy is still an internet-facing security boundary. Keep it patched, minimize exposed management interfaces, and do not assume TLS termination substitutes for application authentication or authorization.

Dynamic environments: Traefik has the strongest native model

Consider a host where Compose projects are deployed frequently. With Traefik, each application can declare its own hostname and middleware labels. Deploying the stack can register the route without editing a central proxy configuration.

That pattern scales particularly well when teams already manage infrastructure as code.

Caddy can also be automated through configuration generation or its admin API, but dynamic container discovery is not the central upstream design of core Caddy.

NPM is strongest when route changes are operator-driven through its UI. If every new container requires a person to open the dashboard and create a proxy host, that workflow is simple but not truly lifecycle-driven automation.

Static homelabs: Caddy is often the cleaner default

For a stable set of services such as:

• Immich;
• Jellyfin;
• Home Assistant;
• Nextcloud;
• Uptime Kuma;
• Paperless-ngx;
• a few internal dashboards;

Caddy can be difficult to beat operationally. The configuration remains visible, reviewable and easy to back up. HTTPS is normally automatic. No application database is required merely to describe proxy routes, and no Docker control API is required when you explicitly name the upstreams.

A simple central file also makes disaster recovery straightforward: restore configuration and any required certificate/state directories, restore DNS, and recreate the proxy container or service.

GUI-first homelabs: Nginx Proxy Manager remains useful

A GUI has real value for operators who are uncomfortable editing configuration files or who make occasional route changes and want a quick visual inventory.

NPM is therefore not merely “Caddy with more clicks.” Its useful property is a different operator experience.

That convenience comes with responsibilities:

• protect the admin interface rather than publishing it casually;
• back up NPM’s persistent data and certificate state;
• keep the application and its dependencies patched;
• document custom Nginx snippets so the UI is not the only place your architecture exists;
• test upgrades when you depend on DNS challenge plugins or custom configuration.

AiCybr already has a dedicated Nginx Proxy Manager setup guide for readers who choose this path.

Configuration as code

If you want changes reviewed through Git, Caddy and Traefik both fit well, but in different ways.

Caddy

The Caddyfile is concise and easy to review. A change from one upstream to another is obvious in a diff. That makes Caddy attractive for small teams and homelabs that want infrastructure-as-code discipline without a large amount of syntax.

Traefik

Traefik can place routing close to the workload itself. In Docker Compose, labels live with the service. In Kubernetes, routing can live in Kubernetes resources. This reduces the mismatch where application configuration changes but a separate proxy repository is forgotten.

The downside is that routing information can become distributed across many service definitions. Consistent naming, middleware reuse and certificate-resolver conventions matter more as the deployment grows.

Nginx Proxy Manager

The primary workflow is UI/state driven. You can still back up the database and configuration, but the default operational model is not the same as reviewing every proxy-host change as a small text diff in Git.

If Git-based change control is a core requirement, Caddy or Traefik is usually the more natural fit.

Observability and debugging

Traefik exposes a dashboard and supports metrics integrations, making it attractive when the edge proxy is part of a broader operational platform. The dashboard should not be confused with NPM’s configuration UI: Traefik’s dashboard is primarily for observing the current routing state rather than being the normal place to create Docker routes interactively.

Caddy provides structured logging and metrics capabilities, and its configuration is often simpler to reason about in a small environment. Its reverse_proxy directive also supports load balancing, active and passive health checks, retries and transport configuration.

NPM exposes familiar Nginx/OpenResty behavior underneath its UI, but advanced debugging may eventually require understanding the generated proxy configuration and container logs rather than relying only on the graphical interface.

Load balancing and more advanced routing

Caddy’s reverse proxy supports multiple upstreams, several load-balancing policies, active/passive health checks, retries, header manipulation and multiple HTTP transport options.

Traefik’s routing model separates routers, services and middlewares, which can be advantageous when you need reusable authentication, redirect, rate-limit or header policies across many services. Its provider model also makes it better suited to workloads whose endpoints change dynamically.

NPM can handle common home-lab reverse proxy and stream-proxy tasks and allows custom Nginx configuration, but if your design is becoming heavily policy-driven or orchestrator-driven, the abstraction may be telling you that Traefik or direct Caddy/Nginx configuration is a better long-term operational fit.

Internal-only services

A reverse proxy does not require a service to be internet-accessible.

For internal services, you can combine any of these proxies with:

• split-horizon/internal DNS;
• a VPN such as Tailscale, WireGuard or NetBird;
• local certificate trust where appropriate;
• firewall rules that keep ports 80/443 reachable only from trusted networks.

Do not expose an application merely because issuing a public certificate is convenient. Network reachability and certificate issuance are separate decisions.

Caddy can also manage locally trusted certificates for suitable internal environments, but every client that should trust a private CA must receive that trust correctly. Publicly trusted certificates plus internal-only routing are another common design when DNS and ACME challenge methods permit it.

Wildcard certificates: when they are actually useful

Wildcard certificates such as *.example.com can reduce the number of certificates in environments with many subdomains, but they are not automatically better.

DNS-01 is required for wildcard ACME issuance. That normally means giving the certificate automation path credentials capable of modifying DNS records. Scope those credentials as narrowly as the DNS provider permits.

Per-host certificates avoid placing every hostname under one wildcard private key and are often operationally simple because all three proxies can automate ordinary certificate issuance. Use a wildcard when it solves a real DNS/certificate-management problem, not because it sounds more advanced.

Security comparison

None of the three eliminates the need for upstream application security. If an application has no authentication, placing it behind a reverse proxy with HTTPS only encrypts the unauthenticated connection.

What about performance?

For a normal homelab, proxy choice should rarely be based on unsupported claims that one of these tools is universally “faster.”

Real throughput and latency depend on:

• TLS configuration;
• request/response size;
• HTTP version;
• buffering and compression;
• upstream application latency;
• CPU architecture;
• connection reuse;
• logging;
• middleware or plugin behavior;
• whether traffic is local, WAN or relay constrained.

All three are capable of serving ordinary self-hosted workloads. Choose on operational architecture first. Benchmark your actual path if you run high-throughput media, APIs or many concurrent connections.

Migration difficulty

NPM to Caddy

Usually straightforward for simple hosts. Export/document each hostname, upstream, websocket/header requirement, access rule and certificate/DNS requirement, then reproduce them in a Caddyfile. Custom Nginx snippets require the most careful translation.

NPM to Traefik

The conceptual change is larger because routes often move into Compose labels or provider configuration. The payoff is stronger lifecycle automation if your environment is already container-driven.

Caddy to Traefik

Worth considering when service discovery becomes more important than minimal configuration. Do not migrate merely because the number of services increased; migrate when the operational model changed.

Traefik to Caddy

Can simplify a platform that started dynamically but became relatively static. Be sure to inventory middlewares, authentication chains, redirects and provider-generated routes before converting them into explicit Caddy configuration.

Final decision matrix

Bottom line

Choose Caddy when you want a clean, low-maintenance reverse proxy for a relatively stable set of services and value automatic HTTPS plus configuration that is easy to read and back up.

Choose Traefik when routing should follow your infrastructure automatically. Its native provider model is the decisive advantage for dynamic Docker and Kubernetes environments, but treat Docker API access and configuration complexity as real security and operations considerations.

Choose Nginx Proxy Manager when the GUI is the feature you actually need. It remains a practical way to manage a conventional homelab reverse proxy, especially for users who prefer forms over configuration files, provided its admin surface and persistent state are protected properly.

The wrong choice is usually not the proxy with fewer features. It is the proxy whose operating model does not match how your services change.

Primary sources

• Caddy documentation: https://caddyserver.com/docs/
• Caddy reverse_proxy: https://caddyserver.com/docs/caddyfile/directives/reverse_proxy
• Caddy releases: https://github.com/caddyserver/caddy/releases
• Traefik Docker provider: https://doc.traefik.io/traefik/providers/docker/
• Traefik provider overview: https://doc.traefik.io/traefik/reference/install-configuration/providers/overview/
• Traefik ACME documentation: https://doc.traefik.io/traefik/reference/install-configuration/tls/certificate-resolvers/acme/
• Traefik releases: https://github.com/traefik/traefik/releases
• Nginx Proxy Manager project: https://github.com/NginxProxyManager/nginx-proxy-manager
• Nginx Proxy Manager releases: https://github.com/NginxProxyManager/nginx-proxy-manager/releases