Traefik vs NGINX: Honest Benchmark & Comparison for 2025

Background: What Are Traefik and NGINX?

NGINX

NGINX (pronounced “engine-x”) was created by Igor Sysoev in 2004 to solve the C10K problem — handling 10,000 concurrent connections on a single server. Written in C, it is a web server, reverse proxy, and load balancer combined. NGINX powers over 30% of all websites globally.

Traefik

Traefik was created in 2015 specifically for the microservices and container era. Written in Go, it is a pure reverse proxy and load balancer (no web server) with a focus on dynamic configuration — it auto-discovers services from Docker labels, Kubernetes annotations, Consul, and other providers without requiring config file changes or restarts.

Benchmark Setup

Both tested on identical EC2 c5.2xlarge instances (8 vCPU, 16 GB), fronting a pool of 3 Node.js API servers. Load generator: wrk on a separate c5.4xlarge. Versions: NGINX 1.25, Traefik 3.0. HTTP/1.1 keep-alive, TLS 1.3 enabled on both.

Benchmark Results

Requests Per Second

Latency (P95 / P99)

Key finding: NGINX's advantage grows under higher load. At 50K connections, P99 latency is 2x better than Traefik (19.4ms vs 38.6ms). For most applications under 15K RPS, this difference is imperceptible to users.

Memory & CPU Usage

Kubernetes: Where Traefik Wins

Pure performance benchmarks tell one story. In Kubernetes, the operational experience difference is dramatic.

NGINX on Kubernetes

With the NGINX Ingress Controller, you define routing via Ingress resources. Every time you add a new service, you update the Ingress resource, and NGINX reloads its config. At scale, with hundreds of services, this causes frequent config reloads that can introduce brief latency spikes.

# Every new service needs an Ingress update
apiVersion: networking.k8s.io/v1
kind: Ingress
metadata:
  name: my-service-ingress
  annotations:
    nginx.ingress.kubernetes.io/rewrite-target: /
spec:
  rules:
  - host: api.example.com
    http:
      paths:
      - path: /v1
        pathType: Prefix
        backend:
          service:
            name: api-v1
            port:
              number: 80

Traefik on Kubernetes

With Traefik, you annotate your Kubernetes Service and Traefik automatically discovers and routes to it — no Ingress resource updates, no reloads. Deploy a service, add annotations, it's live.

# Annotate your Service — Traefik picks it up automatically
apiVersion: v1
kind: Service
metadata:
  name: api-v1
  labels:
    app: api
spec:
  selector:
    app: api
  ports:
  - port: 80
    targetPort: 3000

---
# Traefik IngressRoute — more expressive than standard Ingress
apiVersion: traefik.io/v1alpha1
kind: IngressRoute
metadata:
  name: api-route
spec:
  entryPoints:
    - websecure
  routes:
  - match: Host(`api.example.com`) && PathPrefix(`/v1`)
    kind: Rule
    services:
    - name: api-v1
      port: 80
  tls:
    certResolver: letsencrypt  # Auto SSL from Let's Encrypt

Automatic Let's Encrypt

This is Traefik's biggest operational win. Configure it once:

# traefik.yaml
certificatesResolvers:
  letsencrypt:
    acme:
      email: you@company.com
      storage: /data/acme.json
      httpChallenge:
        entryPoint: web

Every IngressRoute with certResolver: letsencrypt automatically gets a free, auto-renewing SSL certificate. With NGINX, you need cert-manager + ClusterIssuer + Certificate resources — more moving parts.

Configuration: Side by Side

Reverse Proxy for a Single Service

NGINX

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

    ssl_certificate /etc/ssl/certs/api.crt;
    ssl_certificate_key /etc/ssl/private/api.key;

    location / {
        proxy_pass http://api-backend;
        proxy_set_header Host $host;
        proxy_set_header X-Real-IP $remote_addr;
    }
}

upstream api-backend {
    server 10.0.0.1:3000;
    server 10.0.0.2:3000;
}

Traefik (Docker)

# Just add labels to your Docker service
services:
  api:
    image: my-api:latest
    labels:
      - "traefik.enable=true"
      - "traefik.http.routers.api.rule=Host(`api.example.com`)"
      - "traefik.http.routers.api.tls=true"
      - "traefik.http.routers.api.tls.certresolver=letsencrypt"
      - "traefik.http.services.api.loadbalancer.server.port=3000"

When to Choose NGINX

• You need to serve static files (images, CSS, JS) — Traefik can't do this
• Raw performance is critical (>50K RPS)
• You're on VMs or bare metal (not Kubernetes)
• Your team already knows NGINX well
• You need fine-grained caching control

When to Choose Traefik

• You're on Kubernetes and want minimal operational overhead
• You want zero-config Let's Encrypt SSL
• You frequently add/remove services and want automatic routing
• You use Docker Compose for local development and want the same tool in prod
• You value the dashboard and visual traffic overview

FAQ