Synthetic Classic has reached end of support and is no longer available. Existing Synthetic Classic customers have been upgraded to the all-in-one Dynatrace software intelligence platform.

Viewing playback results

After playing back a script, you can display results for one or all of the steps in the script.

  1. Open or record a script.

  2. Click PLAY .

  3. When the playback is complete, the results at the script level are displayed. A message indicates whether the script ran successfully. The playback agent is listed below this message.
    Script playback results

When playback is complete:

  • Click the right-pointing arrow near the script name to view the script settings that you can modify. Select the downward-pointing arrow to close these settings.

  • View the detailed list of URLs in the script. This section displays the return code, method, URL, size (in bytes), and time (in ms) for each object in a step in the script.

    If SPDY is enabled for script playback, a green checkmark in the SPDY column to the left of the URL indicates whether the SPDY protocol was detected and used for the object during playback.

    Hold the mouse pointer over the URL to see the full URL. You can also select a URL and view additional information shown in one of the tabs below.

    By default, this section displays the results for all steps. You can expand and collapse the information shown here for all steps by selecting Expand Steps and/or Collapse Steps located below this section. Select the right-pointing arrow located next to the step to expand an individual step; select the downward-pointing arrow to collapse an individual step.

  • You can export the results of the playback at the script or step level.

Depending on the item you select, the following tabs may be displayed to provide information about the test:

  • Summary – Select a script, step, or object.
  • Screen Shot – Select a script or step.
  • Waterfall – Select a script or step.
  • Google Page Speed – This feature is no longer supported, and will be removed in a future release.
  • Debug Alerts – Select a script or step.
  • Headers – Select an object.
  • POST Content – Select an object.
  • Reply Content – Select an object.


You can view summary information by clicking the Summary tab. If the script completed successfully, this tab lists summary information depending on whether you select the script, a step, or an object in the tree view:

  • Object URL – Object.

  • Transfer protocol (SPDY or HTTP) – Object, and only if SPDY is enabled for playback.

  • Total response time – Script, step, or object.

  • Number of hosts used – Script or step.

  • Number of connections used – Script or step.

  • Number of objects transferred – Script or step.

  • Return code – Object.

  • Total number of bytes downloaded – Script, step, or object.

Summary - script details

Information is also broken out into Host Details and Step Details:

  • Host Details – Information about the objects served by each host. The name and IP address for each host are shown.
    Summary - host details

    If SPDY is enabled for playback, the header for the Host Details table also indicates whether the SPDY or HTTP/HTTPS transfer protocol was used.

    Click a row to drill down for more information. For each connection to the host, the port, connect time (in milliseconds), response time (in milliseconds), number of objects loaded over the connection, number of errors on the connection, and total bytes downloaded is listed. Click the row again to collapse this information.
    Host details expanded

  • Step Details – Information about the objects loaded at each step of the script, states whether the step completed successfully, and lists summary information (as described above). Select a step to drill down for more information. For each object that was transferred in this step, the status code, URL of the object, and the response time in milliseconds, is listed. Select the step again to collapse this information.
    Object details

Screen shot

You can view a screen shot of each step by selecting the Screen Shot tab.

At the script level, this tab displays a thumbnail for each step.

Screen shots - script level

Select a thumbnail to view a larger screen shot. You can also display the screen shot for a step by selecting the step in the URL list.
Screen shot for a step

If a page contains Flash or Silverlight content and Flash or Silverlight is not enabled, the screen shot displays a placeholder, not the content.


You can view a waterfall chart of each step or for the entire script. See Waterfall chart of playback results for details.

Debug alerts

If you added debug statements to troubleshoot a script, the output of those debug statements appears in this tab.


The Headers tab is available at the object level. Select a URL in the detailed list of URLs, then select the Headers tab to view the request and response headers.
Headers tab

POST content

The POST Content tab is available at the object level. Select a URL in the detailed list of URLs, then select the POST Content tab to view content sent to the server.

POST content tab

Reply content

Select the Reply Content tab to view content received from the server.
Reply content tab