Caddy
A web server that automates HTTPS deployment by default across all sites
- Also known as
- caddy
What is Caddy?
An open-source web server designed to serve every site with automatic HTTPS/TLS using default-secure configurations. It provides reverse proxy capabilities with advanced load balancing, high availability features, dynamic configuration without downtime, and an extensible modular architecture.
Caddy pricing
Plans, per-tier features and add-ons, dated and linked to live pricing. Pricing changes often; always verify at source before you rely on it.
Free and open-source; optional paid sponsorship for business support
Community
FreeFree, open-source with community support via forum
Sponsor
Contact salesBusiness support through sponsorship tiers; email, chat, and phone/video depending on tier
What Caddy does
The capabilities that matter for reverse proxies, normalised so it lines up with every alternative. “-” means we haven't confirmed it, not that it's missing.
- Tls termination
- ✓
- Automatic HTTPS acme
- ✓
- HTTP caching
- ✓
- Hot config reload
- ✓
- Clustering ha
- ✓
- Rate limiting
- ✓
- Identity aware proxy
- -
Platform & deployment
Independently observed- CLI
- macOS
- Web
- Linux
- Windows
- Cloud / SaaS
- Self-hosted
Integrations (23)
Independently observed- Wafris
- SOPS
- IP2Location
- IP2Proxy
- go-acme/lego
- Pyroscope
- Profefe
- Cloudflare
- Google Cloud DNS
- TencentCloud DNS
- Docker
- Kubernetes
- Consul
- CrowdSec
- Umami
- Bunny CDN
- OAuth 2.0
- LDAP
- OpenID Connect
- SAML
- Google Cloud KMS
- etcd
- AWS
Security & compliance
Known vulnerabilities: 7 (3 in the last 12 months), max severity CRITICAL sourcea count reflects scale & disclosure, not quality
Caddy FAQ
Common questions about Caddy, answered from independent, dated evidence.
What is Caddy?
A multi-platform web server that automatically handles HTTPS/TLS provisioning for websites without manual certificate management. It serves as an HTTP reverse proxy with load balancing, dynamic routing, health checking, and REST-based configuration management. It is indexed under Reverse Proxies.
Source: https://caddyserver.com
Is Caddy free to use?
Caddy is open source, so it can be self-hosted and used at no licence cost. It is released under the Apache-2.0 licence. Paid editions are also offered: Sponsor, priced on request. Pricing changes often, so verify at source before relying on it.
Source: https://caddyserver.com
What platforms does Caddy support?
Caddy supports the web, Windows, macOS, Linux and a command-line interface. Platforms we have not confirmed are simply not listed here rather than ruled out.
Source: https://caddyserver.com
Can Caddy be self-hosted?
Yes. Caddy can be deployed on-premise and self-hosted, so it does not have to run on the vendor's infrastructure.
Source: https://caddyserver.com
What does Caddy integrate with?
We have confirmed 16 integrations for Caddy, including Cloudflare, Google Cloud DNS, TencentCloud DNS, Docker, Kubernetes, Consul, CrowdSec and Umami, plus 8 more. This is what we could verify from public sources, so the vendor may support others we have not indexed.
Source: https://caddyserver.com
What security certifications does Caddy have?
We have independently confirmed HIPAA for Caddy. Certifications we do not list are ones we have not been able to verify from public sources, which is not the same as Caddy not holding them. Always confirm compliance directly before you rely on it.
Source: https://caddyserver.com
Is Caddy open source?
Yes. Caddy is published under the Apache-2.0 licence, a permissive licence that generally allows commercial use and modification. Licence terms can change between releases, so verify against the repository for the version you intend to use.
Caddy alternatives
Other reverse proxies we track, ranked by the same independent score.
- Apache Traffic ServerA high-performance proxy server for caching and accelerating HTTP trafficlow · 14%
- PomeriumSecure access control that uses identity and context to enforce policies on every requestlow · 21%
- YARPA reverse proxy for managing incoming HTTP and HTTPS traffic in Kubernetes clusterslow · 6%
The vioscaleAI score: one lens on the evidence
Not user reviews and not a paid placement: a confidence-weighted blend of the independent signals below (adoption, activity, security posture, and more), which you can sort and re-weight yourself. Vendors can correct their listing but can never move their rank, and stars are weighted low as a vanity metric. It is one way to read the evidence for Caddy, not the verdict.
| Signal | Score | Weight | Contribution | Evidence |
|---|---|---|---|---|
| Capabilities | 100 | 0.06 | 6.3 | ✓ |
| Development activity | 55 | 0.09 | 5.2 | ✓ |
| Release cadence | 82 | 0.05 | 4.3 | ✓ |
| Security score | 94 | 0.04 | 3.9 | ✓ |
| Dependent projects | 56 | 0.06 | 3.5 | ✓ |
| Security posture | 25 | 0.12 | 2.9 | ✓ |
| Stars | 92 | 0.03 | 2.4 | ✓ |
| Integrations | 33 | 0.07 | 2.4 | ✓ |
| Package downloads | 0 | 0.14 | 0.0 | - |
| Developer Q&A activity | 0 | 0.06 | 0.0 | - |
Computed . Re-weight it by intent, or see the full method.
All data & sourcesshow ↓
Every value we hold, with its source, retrieval date, and confidence. This is the evidence behind the score: don't trust it, verify it.
Activity
| Attribute | Value | Evidence |
|---|---|---|
| Commits last 30d | 56 | mediumsource · 2026-10-05 · 65% |
Adoption
Content
| Attribute | Value | Evidence |
|---|---|---|
| Faq | 7 items | mediumsource · 2026-09-10 · 65% |
Features
| Attribute | Value | Evidence |
|---|---|---|
| Capabilities | Waf support: Yes · Http caching: Yes · Clustering ha: Yes · License model: open-source · Rate limiting: Yes · Reverse proxy: Yes | mediumsource · 2026-10-05 · 60% |
Integrations
| Attribute | Value | Evidence |
|---|---|---|
| Count | 13 | mediumsource · 2026-10-05 · 60% |
Language
| Attribute | Value | Evidence |
|---|---|---|
| Primary | Go | highsource · 2026-10-05 · 90% |
License
| Attribute | Value | Evidence |
|---|---|---|
| Spdx | Apache-2.0 | highsource · 2026-10-05 · 95% |
Pricing
Release
Security
| Attribute | Value | Evidence |
|---|---|---|
| Hipaa | Yes | mediumsource · 2026-10-05 · 60% |
| Pci | Yes | mediumsource · 2026-10-05 · 60% |
| Scorecard | 9.4 | highsource · 2026-10-05 · 90% |
| Vulnerabilities | Count: 7 · Source: https://advisories.ecosyste.ms/api/v1/advisories?ecosystem=go&package_name=github.com%2Fcaddyserver%2Fcaddy&per_page=100 · Last 12m: 3 · Max severity: CRITICAL | highsource · 2026-10-05 · 90% |
Is Caddy the right choice for you?
Tell us the job, the constraints and what you weigh most, and we will rank Caddy against the rest of the reverse proxies we index, using the same dated evidence weighted your way.
Free to run, no account needed to start. How the evaluation works
Is this your product?
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