Technical Requirements

For the best learning experience we recommend the following:


Supported Modern Browsers
  • EdgeHTML 80+
  • Firefox 50+
  • Chrome 80+
  • Safari 11+
  • All modern browsers, devices, and operating systems generally work, but may not be supported.

Internet Connections

  • A broadband connection is required.
  • Dialup connections may cause problems.
  • Poor or slow wireless connections, 3G connections, or satellite connections may cause problems.
  • ADSL connections with slow upload speeds may cause problems.

Security and Viruses on User PCs
  • Security packages that dynamically inject JavaScript into pages as an anti-popup measure will interfere with our website, and is not supported. This specifically includes some versions of Norton/Symantec.
  • Viruses on infected PCs may cause problems and are not our responsibility.
Test Result Requirement You Required for...
Operating System Fail Windows 7+, Mac OS X 10.8+, iOS 9+, Android 6+ Unknown ...viewing the website correctly.
Browser Fail EdgeHTML 80+, Firefox 50+,
Safari 11+, Chrome 80+
Unknown 0 ...viewing the website correctly.
JavaScript Enabled ...interacting with the website.
Session Cookies Enabled ...remaining signed in.
JavaScript Messaging Enabled ...saving quiz answers.
Return to the Home Page or Run This Test Again
User Info
IP Address: 3.238.72.180
User-Agent: CCBot/2.0 (https://commoncrawl.org/faq/)