Software Alternatives, Accelerators & Startups

Caddy VS Let's Encrypt

Compare Caddy VS Let's Encrypt and see what are their differences

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Caddy logo Caddy

The HTTP/2 Web Server with Automatic HTTPS

Let's Encrypt logo Let's Encrypt

Let’s Encrypt is a free, automated, and open certificate authority brought to you by the Internet Security Research Group (ISRG).
  • Caddy Landing page
    Landing page //
    2022-07-22
  • Let's Encrypt Landing page
    Landing page //
    2023-07-12

Caddy features and specs

  • Automatic HTTPS
    Caddy automatically handles HTTPS by obtaining and renewing certificates from Let's Encrypt, simplifying the process of securing web applications.
  • Ease of Configuration
    Caddy uses a straightforward configuration file (Caddyfile) that is easier to write and understand compared to other web servers like Nginx or Apache.
  • Cross-Platform
    Caddy is designed to run efficiently on virtually any platform, including Windows, macOS, Linux, and Docker, giving it great flexibility for deployment.
  • Built-in Reverse Proxy
    Caddy includes built-in support for reverse proxy functionality, which can easily be configured to distribute load among multiple servers.
  • Extensible
    Caddy supports plugins for additional features, allowing users to extend its functionality without compromising its core simplicity.
  • Integrated Logging and Metrics
    Caddy includes integrated logging and monitoring capabilities, which make it easier to maintain and debug the server without additional tools.
  • Active Community and Support
    Caddy has an active community and is well-supported with extensive documentation, which helps new users get up to speed quickly and troubleshoot issues effectively.

Possible disadvantages of Caddy

  • Memory Usage
    Caddy can have higher memory usage compared to other web servers like Nginx, which might be a concern for resource-constrained environments.
  • TLS Configuration Complexity
    While Caddy handles basic HTTPS automatically, advanced TLS configurations can be more complicated to manage and may require a deeper understanding.
  • Learning Curve for New Features
    As Caddy rapidly evolves and adds new features, there can be a learning curve associated with keeping up to date on the latest changes and functionalities.
  • Performance
    Although Caddy performs adequately for many use cases, it may not match the high performance of optimized setups with other web servers like Nginx in highly demanding environments.
  • Licensing Costs
    While Caddy is open source, certain features are available under a commercial license. Organizations may incur additional costs for enterprise-grade functionality.

Let's Encrypt features and specs

  • Free of Charge
    Let's Encrypt provides SSL/TLS certificates at no cost, making it an economical choice for individuals and businesses.
  • Automated Certificate Issuance and Renewal
    The process of obtaining and renewing certificates can be automated using the ACME protocol, reducing manual intervention and administrative overhead.
  • Ease of Use
    Let's Encrypt simplifies the process of enabling HTTPS for websites, even for users with limited technical expertise.
  • Security
    Let's Encrypt certificates provide strong encryption, improving the security of data transmitted between clients and servers.
  • Widely Recognized
    Certificates issued by Let's Encrypt are trusted by all major web browsers and operating systems.
  • Promotes Secure Web Practices
    By making SSL/TLS certificates freely available, Let's Encrypt encourages more websites to adopt HTTPS, contributing to a more secure internet.

Possible disadvantages of Let's Encrypt

  • Short Duration of Certificates
    Let's Encrypt certificates are valid for only 90 days, requiring more frequent renewals compared to traditional certificate authorities.
  • Limited Support Options
    Let's Encrypt relies on community support and documentation, and does not offer dedicated customer support for troubleshooting and assistance.
  • No Extended Validation (EV) Certificates
    Let's Encrypt does not issue Extended Validation (EV) certificates, which provide additional verification and a higher level of trust for business websites.
  • Potential for Misuse
    Since certificates are issued for free and with minimal validation, there is a risk that cybercriminals might use them for phishing or other malicious activities.
  • No Wildcard Certificates for Multi-Level Subdomains
    While Let's Encrypt supports wildcard certificates for single-level subdomains, it doesn't support them for nested subdomains (e.g., *.sub.example.com).
  • Reliance on Third-Party Tools for Automation
    Users may need to rely on third-party tools or scripts for automation, which could introduce additional complexity or security risks.

Caddy videos

Getting started with Caddy the HTTPS Web Server from scratch

Let's Encrypt videos

No Let's Encrypt videos yet. You could help us improve this page by suggesting one.

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Category Popularity

0-100% (relative to Caddy and Let's Encrypt)
Web Servers
100 100%
0% 0
Security & Privacy
0 0%
100% 100
Web And Application Servers
Identity And Access Management

User comments

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Reviews

These are some of the external sources and on-site user reviews we've used to compare Caddy and Let's Encrypt

Caddy Reviews

Self Hosting Like Its 2025
If you’re looking to forego fancy web interfaces and prefer editing a straightforward file while having the server manage everything from proxying to HTTPS via Let’s Encrypt, then this is the option for you. However, due to the absence of a web interface, I wouldn’t recommend it for complete beginners. But if you appreciate simple UNIX-based tooling, Caddy is an excellent...
Source: kiranet.org
Top Linux Web Servers: Pros and Cons
Now that we know their advantages and disadvantages, which web server is the best? The answer depends on your use case. Nginx is a very fast and powerful option, Apache is a great general-purpose web server, while LiteSpeed represents a premium alternative. Caddy works great if you need simplicity, while Lighthttpd works best when resources are low.
Source: bigstep.com

Let's Encrypt Reviews

We have no reviews of Let's Encrypt yet.
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Social recommendations and mentions

Let's Encrypt might be a bit more popular than Caddy. We know about 338 links to it since March 2021 and only 247 links to Caddy. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

Caddy mentions (247)

  • How I made my Home Server accessible outside my home
    This single record will suffice as we will be using a reverse proxy to map each of our application. For the reverse proxy solution, we will be using Caddy, particularly xcaddy. - Source: dev.to / 3 days ago
  • Simple Web Server
    It looks nice and friendly, but for developers I can recommend exploring caddy[1] or nginx[2]. It's a useful technology to have worked with, even if they're ultimately only used for proxying analytics. [1] https://caddyserver.com/. - Source: Hacker News / 19 days ago
  • Adventures in Homelabbing: From Cloud Obsession to Self-Hosted Shenanigans
    I began to self-host a Minecraft server using Crafty Controller, an Excalidraw instance, Docmost to replace Notion, Plane to replace Jira, and Penpot to replace Figma. To be able to access them from the internet, I used Nginx Proxy Manager to set up reverse proxies with SSL. You can use Traefik or Caddy instead, but I enjoyed the ease-of-use of NPM. For a dashboard solution, I started with Homarr, but later... - Source: dev.to / 24 days ago
  • Self-hosting with Caddy Server And Souin (Caching Module)
    Caddy is the ultimate web server anyone should be using. This is true for production as well as for local development. It is very fast, and by default obtains and renews SSL certificates automatically. This is useful for when you want to test certain website feature that is only allowed when they're accessed with HTTPS. You get free TLS for all your subdomains, and it does that in a scalable way. - Source: dev.to / about 2 months ago
  • Nginx: Try_files Is Evil Too
    Fortunately Caddy is not evil: https://caddyserver.com/. - Source: Hacker News / 3 months ago
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Let's Encrypt mentions (338)

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What are some alternatives?

When comparing Caddy and Let's Encrypt, you can also consider the following products

nginx - A high performance free open source web server powering busiest sites on the Internet.

OpenSSL - OpenSSL is a free and open source software cryptography library that implements both the Secure Sockets Layer (SSL) and the Transport Layer Security (TLS) protocols, which are primarily used to provide secure communications between web browsers and …

Apache HTTP Server - Apache httpd has been the most popular web server on the Internet since April 1996

Ensighten - Ensighten provides enterprise tag management solutions that enable businesses manage their websites more effectively.

Nginx Proxy Manager - Docker container and built in Web Application for managing Nginx proxy hosts with a simple, powerful interface, providing free SSL support via Let's Encrypt

AWS Certificate Manager - AWS Certificate Manager from Amazon Web Services (AWS)