Getting Started - Recording

Follow this guide for a basic example to help get up and running using a Recording scenario. Start by signing up for an account and logging in if you have not already done so.

Define Target URL

After logging in you should see a New Test Case button in the upper right and a 'Test Cases -> New...' link in the left navigation. Click on either to get started. As you can see in the screenshot below there are four steps: Name, Scenario, Configuration, and Results. We will examine each step one by one below.

For the sake of this test we will use our example REST API endpoint found at Give the test a name and press Next (or enter).


The scenario is the set of steps that will be executed during your test. In this guide we will choose the Create Recording option, and specify as the Target URL. The gateway created (http://[some-key] acts as a Man in the Middle proxy to the target service ( in this case) that records all traffic to and from it as you load the gateway in your browser, test scripts, etc.

Go ahead and click the Testable Gateway link and it should open in a new tab with an identical result to when you click on the target URL. The response should look something like:

    name: "sample-http",
    startedAt: "2015-05-01T15:14:56.516Z"

Now go back to the Testable tab in the browser. The recording grid should populate with two new steps:


What this means is that the gateway recorded two steps: the browser trying to open which succeeded and trying to load a favicon.ico which failed (404 Not Found).

If you do nothing more, those two steps define your scenario and get replayed as configured during your load test. Let's add one more step just for fun. Add /stocks/IBM to the gateway URL in the browser and press enter. You should get a result like:

    symbol: "IBM",
    price: 55.13243082314481,
    exchange: "NYSE"

And also see the recorded steps update:


If you click on any step in the recording you can see the details below including all packets sent/received and other detailed information about the request:

Recording Details

Look at that, we've defined a scenario in a couple of easy clicks! Let's turn it into a real load test. Click on the Configuration tab or press the Next button at the bottom.


Now that we have the scenario for our test case (i.e. GET /, GET /favicon.ico, GET /stocks/IBM) we need to define a few parameters before we can execute our test:

  1. Load Profile: Select Flat to ramp up to a constant number of concurrent users for the test.
  2. Concurrent Clients Per Region: Number of clients that will execute in parallel in each region selected. Each client will execute the scenario.
  3. Test Runners: Choose the test runners from which to run this test (e.g. on our public shared grid). Each test runner region will simulate the number of concurrent clients defined above.
  4. Type: Select Iterations to have each client execute the scenario a set number of times regardless of how long it takes. Choose Duration if you want each client to continue executing the scenario for a set amount of time (in minutes).

And that's it! Press Start Test and watch the results start to flow in. See the new configuration guide for full details of all configuration options.

For the sake of this example, let's use the following parameters:


View Results

Once the test starts executing, Testable will distribute the work out to the selected test runners (e.g. Public Shared Grid in AWS N. Virginia).

Results 2

In each region, the Testable test runners execute the recorded scenario with 5 concurrent clients 20 times through. As a reminder the recorded scenario in this case involves executing the following steps against

  1. GET /
  2. GET /stocks/IBM

Results 3

We can see from the results that each resource was requested 100 times (5 concurrent clients * 20 iterations). For GET / and GET /stocks/IBM, 100% of the requests completed successfully at a mean latency of 5ms. For GET /favicon.ico it succeeded 0% of the time, since this service does not expose a /favicon.ico resource so it will never succeed.

Surrounding the resource result grid you can see various graphs. If you click on any resource in the grid, all charts will update to be specific to that resource only.

We offer integration (Settings -> Integration) with third party tools like New Relic. If you enable integration you can do more in depth analytics on your results there as well.

That's it! Go ahead and try these same steps with your favorite website or API and feel free to contact us with any questions.