Fly Machines vs Traefik
A detailed comparison to help you choose between Fly Machines and Traefik.
Quick Verdict
3.9/5
Fly Machines
0 reviews
4.1/5
Traefik
0 reviews
Traefik is rated higher (4.1 vs 3.9). Fly Machines are Fly.io's fast-starting virtual machines for containerised workloads. Start in 300ms, stop when idle to save costs. Used for auto-scaling web services and ephemeral compute. Traefik is a cloud-native reverse proxy and load balancer designed for microservices and Kubernetes. Auto-discovers services from Docker, K8s, and Consul. Automatic Let's Encrypt.
Fly Machines Fast-starting VMs for containerised apps at the edge | Traefik Cloud-native reverse proxy for microservices | |
|---|---|---|
| Overview | ||
| Rating | 3.9 (0 reviews) | 4.1 (0 reviews)✓ |
| Pricing model | usage-based | freemium |
| Starting price | From $2.19/mo | Free tier available✓ |
| Best for | Developers who want fast-starting containers that scale to zero between requests at the edge, and teams building custom control planes on a VM-per-container API | Docker and Kubernetes teams who want TLS, routing and service discovery with minimal configuration work — especially platform teams standardizing on Kubernetes ingress and Gateway API. |
| Features | ||
| IPv6 | ✓ | |
| DDoS protection | ||
| Automated backups | ||
| Snapshots | ||
| Managed option | ||
| Bare metal | ||
| GPU available | ||
| S3-compatible | ||
| Hourly billing | ✓ | |
| Free tier | ✓ | |
| Data-center locations | ||
| Regions | Netherlands, Sweden, France, Germany, UK, US, Canada, Brazil, South Africa, Japan, Singapore, Australia | — |
| Tags | ||
| Tags | free tiermanaged optioneu datacenterus datacenterapac datacenter | free tieropen sourceself hostablekubernetes support |
| Visit Fly Machines → | Visit Traefik → | |
Fly Machines
Pros
- + ~300ms VM boot with automatic stop when idle — real scale-to-zero economics for request-driven workloads
- + Billed by the second with a fully published rate card; smallest Machine $2.19/30 days running
- + Low-level lifecycle control via REST API: create, start, stop, clone, update, destroy per VM
- + 17 regions on Fly's own hardware with per-Machine region placement
- + Fast restart from stopped state — assembled rootfs stays on the worker host
Cons
- - Fly.io-only API and infrastructure — no orchestration portability
- - Running the raw API means building your own scaling, placement retry and health logic
- - Always-on and idle costs accumulate: stopped rootfs $0.15/GB/month, volumes $0.15/GB/month, dedicated IPv4 $2/month
- - Capacity limits per region and host can make Machine placement fail
- - No free tier — only a 2-VM-hour/7-day trial — and no uptime SLA outside Enterprise plans
Traefik
Pros
- + MIT-licensed proxy with the full feature set free for commercial use — no per-service or seat charges
- + Auto service discovery from Docker, Kubernetes, Consul and others with hot-reloaded dynamic configuration
- + Automatic Let's Encrypt TLS across many hostnames, HTTP/2-3, gRPC, WebSockets, TCP/UDP routing
- + Built-in observability: Prometheus/Datadog/StatsD metrics, OpenTelemetry tracing, dashboard and API
- + Long production track record since 2016, active v3.x releases, Gateway API leadership, plugin catalog (Go + WebAssembly)
Cons
- - Commercial Hub tiers are sales-gated with no public pricing; marketplace contracts run $30,000-$50,000/year
- - Advanced auth (OIDC/JWT/OPA), WAF, multi-cluster and FIPS live behind the paid line
- - Dynamic-discovery debugging (middleware ordering, provider state) has a real learning curve
- - No vendor-published benchmarks and no uptime SLA for Hub's managed components
- - Small vendor behind the commercial product; EULA includes license-key verification for paid installs
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