How do I find the backend of a website?

How to find out what PLATFORM a website is using:

A simple website that is text and images, (often called a static website) has no need for a back end developer . If a website owner would want to be able to edit the content on their website without having to edit the source code directly, then you would need back end web development.

Though the above-mentioned programming languages are becoming quite popular for backend development some other frameworks suitable for backend development are . NET , Haskell, Clojure, Structured Query Language (SQL), c#, C++, PHP, Perl, and Scala.