Multi-Factor Authentication: Accessibility Standards and Options

In This Article

What standards does Duo use to measure accessibility?

Multi-Factor Authentication services at the University of Maryland are provided by Duo. Duo provides enrollment and authentication interfaces that have been designed with accessibility for all end users in mind. Duo authentication interfaces adhere to the international technical standard for accessibility, W3C's Web Content Accessibility Guidelines (WCAG) 2.0. In addition to adhering to the WCAG 2.0 AA standard, Duo interfaces are also designed to meet the GSA Section 508 standards.


Are Duo interfaces tested for accessibility?

To ensure continued achievement in meeting accessibility standards, Duo interfaces are tested for accessibility using the following methods:

Magnification and Screen Readers

Duo interfaces are tested manually using both magnification and screen readers, including Nonvisual Access' NVDA screen reader and Apple's VoiceOver.

Contrast Checkers

Font colors and backgrounds in Duo interfaces are tested against contrast checkers and improving contrast for keyboard focus.

Google Developer Tools' Accessibility Audit Extension

The Google Developer Tools' Accessibility Audit extension is used to run WCAG 2.0 audit rules against Duo interfaces.


Which web browsers provide the best accessibility options for Duo interfaces?

Duo's authentication interface is most accessible on up-to-date versions of the most popular web browsers:


Are accessibility options for Duo interfaces available for mobile devices? 

Duo's authentication interface is also fully compatible with popular screen readers and voiceover options on iOS and Android phones.

The Duo Push mobile application is available for iOS and Android devices, and it is compatible with platform native text to speech and alternative navigation options. Download the Duo Push mobile app from the Apple App Store or Android store to start authenticating directly from your mobile device.


How do I enable keyboard accessibility for Duo authentication?

Duo interfaces are designed to enable users to authenticate with a keyboard. To learn how to enable keyboard accessibility for your computer operating system or web browser, follow the steps listed below:

Operating Systems


  1. Open System Preferences.
  2. Go to Keyboard and click the Shortcuts tab.
  3. Under Full Keyboard Access, select All Controls.


Keyboard accessibility is enabled by default.

Turn on additional accessibility features in the Windows Ease of Access Center on your PC.



Keyboard accessibility is enabled by default.

If keyboard accessibility is disabled,

  1. Go to Settings from the Chrome browser window.
  2. Click Show Advanced settings.
  3. Select Web Content.
  4. Select Enable the Pressing Tab on a webpage highlights links, as well as form fields option.


Uses the underlying operating system accessibility setting.

Internet Explorer/Edge

Tab navigation enabled by default.

Learn more about Internet Explorer and Edge accessibility at the Microsoft Accessibility site.


  1. Open Preferences and select Advanced.
  2. In the Accessibility settings, select Press tab to highlight each item on a webpage.


Can keyboard shortcuts for accessibility can be used with Duo interfaces? 

Duo interfaces are keyboard accessible using standard keystrokes, including:


How can I learn more about accessibility for Duo interfaces?

To learn more about accessibility for Duo interfaces, visit the Accessibility and Duo page at


Content courtesy of Duo © 2017