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Why Load Test?

by Honza

Tips on why you want to load test your website, web apps and API’s in 2017. Plus - a few tips on setup and implementation.

This post is written by Jaymi Tripp from Dotcom-Monitor.

1. You are expecting an influx in traffic or sales

If you know that you will see an increase in visitors to your website, load testing is crucial, and no website is invincible. In 2003 we saw with Amazon in a situation that ended in legal issues and server overload when someone entered incorrect data for the price of some popular electronic items at the time. Even the government is susceptible to crashes. We all remember this after the launch of Obama Care with the incredible page load times and constant glitches. Rumor has it that the site never went through any load testing scenarios and there was no information on what its capacity actually was.


I have recently written some documentation about how to write automated tests for Firebug (possibly even for Firebug extensions) and also how to run an official Firebug test suite. Here is a quick summary and a few links.

Firebug Test Doc Home
Running Automated Test Suite
Test Examples
Test API

Running Automated Test Suite

Running the official test suite is as easy as installing Firebug and FBTest (Firebug) extension.

At some point (I hope in FB 1.6), the FBTest extension will be part of Firebug developer build (with an 'X' in the name) so, running tests should be even easier.

To execute all tests:

  1. Open Firebug Test Console. Pick menu Tools -> Firebug -> Open Test Console.
  2. Put URL into the URL bar (should be there by default).
  3. Press Run All button on the toolbar.

There are some tests that require Firefox 3.6 so, the recommended configuration (to see all green) is:

  • Firefox 3.6
  • Firebug 1.5

Please let us know if you see failing tests.