🆚 Caddy vs. Kestrel

Caddy is an open-source multi-platform web server written in Go with built-in support for automatic HTTPS and modern web protocols.

It supports automatic TLS management with providers such as Let's Encrypt and ZeroSSL, includes a built-in reverse proxy with load balancing, offers configuration through the human-readable Caddyfile or a JSON-based REST API, and features a modular architecture that can be extended with plugins.

Kestrel is an open-source, cross-platform web server for ASP.NET Core that can serve HTTP requests on Windows, Linux, and macOS.

It uses an event-driven, high-performance architecture to handle many concurrent connections, supports HTTP/1.1, HTTP/2, HTTP/3, and WebSockets, provides HTTPS support, and integrates closely with the ASP.NET Core middleware pipeline and configuration system.

Popularity

Determined by the number of sites using each technology.

• ⭐ 4th most popular in Germany in the Web Servers category.
• ⭐ 5th most popular in Austria in the Web Servers category.
• ⭐ 5th most popular in Romania in the Web Servers category.
• ⭐ 5th most popular in Belgium in the Web Servers category.
• ⭐ 5th most popular in Bulgaria in the Web Servers category.

• ⭐ 6th most popular in Turkey in the Web Servers category.
• ⭐ 7th most popular in the United States in the Web Servers category.
• ⭐ 7th most popular in China in the Web Servers category.
• ⭐ 8th most popular in the United Kingdom in the Web Servers category.
• ⭐ 8th most popular in Brazil in the Web Servers category.

Top sites

Top-ranked sites that use these technologies.

Compare alternatives

Technologies with similar characteristics.

• Caddy vs. Nginx
• Caddy vs. Varnish
• Caddy vs. Envoy
• Caddy vs. Tomcat
• Caddy vs. HAProxy

• Kestrel vs. Nginx
• Kestrel vs. Apache
• Kestrel vs. Microsoft IIS
• Kestrel vs. Tomcat
• Kestrel vs. Cowboy

• Caddy technology profile

• Kestrel technology profile
• Microsoft company profile