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Time your website speed with simple command line tools

When doing some initial, rough performance evaluation of a website's code, we can use some common tools which should be available on most desktops. Whether on Mac or Windows, you should have access to a command line (Terminal on Mac, git bash or Cygwin bash on Windows) with the regular "Unix" (POSIX) command line tools or GNU versions of them. You should also have 'curl' (and 'wget'), which is non-standard but very common and useful.

In the following examples, replace example.com with your website and page you want to test.

Step 0: ping example.com


PhantomJS vs Selenium for scraping and automated testing

Now that I have a bit of experience with both PhantomJS and Selenium (for Selenium, mostly in its scripting contexts) here are some things I can share. All of this assumes we can use Selenium's WebDriver and script it to be comparable to PhantomJS because PhantomJS is a out-of-the-browser Javascript module (like Node.js) without a web UI shell like Selenium (in the case of Selenium IDE). WebDriver can be controlled from many scripting languages (and even compiled languages) like Python and even JavaScript. Assume that anything about PhantomJS also applies to CasperJS which is a wrapper for...