Question

When does WebPageTest become necessary?

(a) To run any common website

(b) To run private websites

(c) To run QA testing

(d) To run media testing

I had been asked this question during an interview for a job.

This interesting question is from JavaScript with WebPageTest in section Performance Measures in JavaScript of JavaScript

Answer 1

Correct choice is (b) To run private websites

To explain: If you want to run tests on web sites that are not publicly available—like a QA or development environment, or if you can only have your test results stored on your own servers because of legal or other reasons, then installing your own private instance of WebPagetest is the way to go.