The Server header contains information about the software used by the origin server to handle the request.
Overly long and detailed Server values should be avoided as they potentially reveal internal implementation details that might make it (slightly) easier for attackers to find and exploit known security holes.
Hypertext Transfer Protocol (HTTP/1.1): Semantics and Content
Browser compatibility
The compatibility table in this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.