Envoy vs Kestrel

Envoy is a web server and Kestrel is a web server. Here's how they compare, how Tech Stack Detector detects each, and how many scanned websites use them.

Cloud-native edge and service proxy.

Category
Server
Detection signals
2
In our index
12 websites
Official site
envoyproxy.io
Learn more about Envoy

Cross-platform web server for ASP.NET Core.

Category
Server
Detection signals
1
In our index
1 website
Official site
learn.microsoft.com
Learn more about Kestrel

How Tech Stack Detector detects each

Envoy

  • HeaderServer: envoy
  • HeaderEnvoy upstream timing header

Kestrel

  • HeaderServer header identifies Kestrel

Websites using each

Frequently asked questions

What is the difference between Envoy and Kestrel?

Envoy is a web server (Cloud-native edge and service proxy), while Kestrel is a web server (Cross-platform web server for ASP.NET Core). Both are Server technologies, so they are often considered alternatives.

Can a website use both Envoy and Kestrel?

Yes. Tech Stack Detector detects each technology independently when you scan a site, so a single page can report both Envoy and Kestrel when both are present.

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