For the best experience, we recommend:

Browser Version  
Firefox 59 or later Download
Google Chrome 66 or later Download
Safari 8 or later Download



Device Operating System
PC Windows 7, 8, 8.1, 10 or later
Mac Mac OS X 10.9 or later
iPad 2 or later iOS 9 or later
Android Tablet Android OS 7.0 or later
Chrome OS device (such as Chromebook) Chrome OS 78 or later





NHA Simulation product requirements can be found here.



  • NHA recommends using wired network connections for proctored testing. Wireless/Wi-fi connections may be unreliable and could negatively affect testing.
  • Min resolution 1024 x 600.
  • Javascript and cookies must both be enabled within browser.
  • Android's default browser is not supported; download chrome for a better experience.
  • Allow * through the browser pop-up blocker (note some browsers may require user to enable tabbing.).
  • Clear browsing history and exit the browser prior to any testing.
  • Allow * through all proxy/caching servers.
  • Satellite ISPs: NHA’s website functionality depends on direct connections to our website and databases in order to accurately display content. Because many ISPs cache webpages rather than allowing connection to the originating website, we are not able to guarantee performance of our website over a satellite connection.
  • Run a network speed test at from the testing location to ensure bandwidth is sufficient.
  • Close all applications that could draw attention away from the testing window (Antivirus scans, System Updates, etc.).
  • NHA internally tests their products using JAWS and NVDA to promote WCAG 2.0 compliant operations for assistive reading.

NHA recommends whitelisting the following sites/IP addresses.

Site IP Address







For the best experience on our mobile app, we recommend:


Device Version
iPhone or iPad iOS 13 or higher
Android tablet or device  Android 9 or higher