People with disabilities are all around us. They live in every country and often experience life in a very different manner than those individuals who don’t have emotional, mental, or physical disabilities. In fact, 15 percent of the global population is classified as disabled. Of this 15 percent, an estimated 190 million people experience significant disabilities.¹
For example, you may have thousands of images on your website that need to be checked for the presence of “alt text,” which is a requirement under WCAG 2.0. This is a task for automated testing software, which can perform the job much faster than any human. While automated tools can detect if the images on your website have alt text, however, they aren’t able to determine whether the text is correct and meaningful—which is a job for human testers.

Because they only read text, screen readers and refreshable Braille displays cannot interpret photographs, charts, color-coded information, or other graphic elements on a webpage. For this reason, a photograph of a mayor on a city’s website is inaccessible to people who use these assistive technologies, and a blind person visiting the website would be unable to tell if the image is a photo, a logo, a map, a chart, artwork, a link to another page, or even a blank page.
The Americans with Disabilities Act (ADA) was first passed in 1990. Twenty years later, the US Department of Justice released an update called the 2010 ADA Standards for Accessible Design. These standards cover the design of physical spaces and have been interpreted to include web locations as well, so it can be difficult for the would-be accessible website designer to use them.
The statement that “noncompliance with a voluntary technical standard for website accessibility does not necessarily indicate noncompliance with the ADA” is new and significant.  It is a recognition that a website may be accessible and usable by the blind without being fully compliant with the privately developed Web Content Accessibility Guidelines (WCAG) 2.0 or 2.1.  The statement confirms what some courts have said so far:  That the operative legal question in a website accessibility lawsuit is not whether the website conforms with WCAG, but whether persons with disabilities are able to access to a public accommodation’s goods, services, and benefits through the website, or some alternative fashion.