Diagnostic Tool

This site provides a several tools to help determine how well suited your environment and / or device may be for utilizing the NCCER testing system. Additionally, it helps to capture important information that will help NCCER to better assist with any issues you may encounter while using the system.

Step 1: Speed Test?

Step 2: Browser / Device Capture?

Browser Requiered Version
Chrome 133
Edge 133
Firefox 135
Safari 18
Chrome/ Android 133
Firefox/ Android 135
Safari/ iOS 18
System Information:

    Step 3: Firewall Test?

    0%
    URL List:

    This step tests URLs that must be accessible for the NCCER Testing Experience to function as expected. If any URLs below are shown with a red "x", this means that the site could not be accessed via this test and that traffic to or from this URL may be blocked by your network. Addressing this issue may require follow-up with your organization's IT department to ensure traffic to or from this URLs is allow. For more information, please see the NCCER support site article here?

    CDN Test:

    This tests your system and network's access to the NCCER Testing System's CDN, where images and figures displayed in tests are accessed during the test experience. If the NCCER logo is successfully displayed here, you are able to access the CDN as required. If not, traffic to or from this URL may be blocked by your network. Addressing this issue may require follow-up with your organization's IT department to ensure traffic to or from this URLs is allow. For more information, please see the NCCER support site article here