This week's book giveaway is in the Reactive Progamming forum. We're giving away four copies of Reactive Streams in Java: Concurrency with RxJava, Reactor, and Akka Streams and have Adam Davis on-line! See this thread for details.
You can usually get a better guess by looking at the content of the page. Various technologies do tend to leave their marks. Although if a URL ends with a ".jsp", the app is probably Java, ".jsf" probably JavaServer Faces, ".do" likely Struts. And ".php" probably a PHP app. Although for a really complex app, a single URL context might get routed to multiple servers running multiple technologies.
Being persecuted doesn't in any way prove your righteousness or your beliefs. Many people get persecuted because they are repugnant or annoying. Or just because they can be.
She'll be back. I'm just gonna wait here. With this tiny ad: