🆚 Caddy vs. Kestrel
- 📈 Caddy is three times more popular than Kestrel.
- 🌎 Caddy is more popular in the United States, Germany, and the United Kingdom.
- 🌎 Kestrel is more popular in Brazil, Turkey, and Vietnam.
CaddyType
About
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.
Headquarters
Pricing
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- ⭐ 5th most popular in Germany in the Web Servers category.
- ⭐ 5th most popular in Belgium 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 Finland in the Web Servers category.
- ⭐ 5th most popular in Georgia in the Web Servers category.
- ⭐ 6th most popular in Turkey in the Web Servers category.
- ⭐ 6th most popular in Iran 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.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Nginx
Apache
OpenResty
Tomcat
Tengine🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,406,701 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.