This past September marked the first time a judge ruled that the ADA applies even to businesses without a physical location. Scribd, an e-book subscription service is considered to provide "a place of public accommodation." Their services are not accessible to blind persons because they cannot be read with a screen reader. The judge reasoned, "Now that the Internet plays such a critical role in the personal and professional lives of Americans, excluding disabled persons from access to covered entities that use it as their principal means of reaching the public would defeat the purpose of this important civil rights legislation."
It isn’t a problem by default, a lot of it comes down to how it is built. I’d suggest either considering a highly accessible contingency option, or build those components in such a way that there is a level of accessibility baked into it. If you need help with that testing or review email us at questions at and we’ll be able to let you know the cost for us to lend a hand.

This plugin has been very useful in creating a fully ADA compliant site. Not only is it cheaper than most plugins, it encourages you as you work on the site. Letting you know what needs changed, and how far you have left to go. There's been a few issues' I've noticed with the builder "Themify", in the scanning. But whatever the issue is, most of the time the plugin creator has been very helpful in resolving these issues. The creator of the plugin responds within about 3 hours or less whenever you email. Most the time it's less than 30 minutes depending on the issue. Very glad to have such great support for the plugin. I highly recommend any business that is looking for building a ADA Compliant site, to use this plugin as it has done a great job for websites I use, and it's got a great price tag! It's well worth the price, and the additional features it gives to show you the definition of what each error is, is very useful.
Permanent injunction requiring a change in corporate polices to cause Defendant’s website to become, and remain, accessible Noted was that “The ADA expressly contemplates the type of injunctive relief that the Plaintiffs seek in this action.” The Plaintiff’s lawyers stated that “Because Defendant’s Website has never been accessible and because Defendant does not have, and has never had, a corporate policy that is reasonably calculated to cause its Website to become and remain accessible”. Therefor the Court should require that the Plaintiff accept who the Defendant will use to “assist it in improving the accessibility of its Website”, “ensure that all employees involved in website development and content development be given training”, “Consultant to perform an automated accessibility audit on a periodic basis to evaluate if the Defendant’s Website continues to comply”, “Consultant to perform end-user accessibility/usability testing on a periodic basis”, “Consultant to create an accessibility policy”. Although the Lawyers asked the Court for the above, and it would be extremely time consuming and expensive for the Defendant, the very last part of the Complaint was what the Lawyers were after. Here is what the Lawyers asked the Court for: 

President George H.W. Bush signed the Americans with Disabilities Act into law July 26, 1990. The ADA prohibits discrimination of people with disabilities and guarantees the same opportunities as everyone else. These opportunities include employment possibilities, purchasing of goods and services and the ability to participate in State and local government programs.
In court, Netflix tried to argue that websites should not be part of ADA compliance regulations, as there is no physical structure / location. They also argued that websites should not be in scope of ADA as there is no public component (the original ADA compliance law specifically called out that ADA rules apply primarily to services, locations, and products that are supposed to be open to the public).
As I mentioned above, under each WCAG 2.1 principle is a list of guidelines, and under each guideline are compliance standards, with techniques and failure examples at each level. Some guidelines include only Level A items; others include items for multiple levels of conformance, building from A to AAA. At each stage, you can easily see what more you would need to do to reach Level AA or AAA. In this way, many websites include elements at multiple levels of accessibility.
For most people, the Americans with Disabilities Act (ADA) conjures up pictures of physical accommodations such as wheelchair ramps near building entrances, handicapped parking spaces, and the use of braille writing on signs and placards. These measures have been tremendously valuable in helping the 56.7 million Americans with a disability function and thrive within society.
Level AA is a little more significant, and makes sites accessible to people with a wider range of disabilities, including the most common barriers to use. It won't impact the look and feel of the site as much as Level AAA compliance, though it does include guidance on color contrast and error identification. Most businesses should be aiming for Level AA conformity, and it appears to reflect the level of accessibility the DOJ expects. 

While legal considerations might be your biggest worry, making your site more accessible is simply good customer service. More than 39 million Americans are blind and another 246 million have "low vision," Another one million are deaf in the U.S. Add to that people with mobility issues that prevent them from using their hands and that's a huge portion of the country's buying power.
Navigable: Content that’s repeated on multiple pages can be easily skipped. All pages have informative titles, headings, and labels that describe the page’s content and hierarchy. Navigating the page must take place sequentially, in a meaningful order that preserves relationships on the page. All link text is descriptive in order to make clear where the link will take users. If users are navigating via a keyboard, the current focus of the keyboard is always highlighted and visible.
We not only referenced the ADA’s requirements while building the website, but also sat down one-on-one with users who are blind to see how they navigated the site. These individual sessions were invaluable and provided more insights than just the law’s basic requirements. Instead of making assumptions about how these users would interact with the site, we took the time to observe their real interactions and used that data to formulate new features.
In many situations, covered entities communicate with someone other than the person who is receiving their goods or services. For example, school staff usually talk to a parent about a child’s progress; hospital staff often talk to a patient’s spouse, other relative, or friend about the patient’s condition or prognosis. The rules refer to such people as “companions” and require covered entities to provide effective communication for companions who have communication disabilities.
When choosing an aid or service, title II entities are required to give primary consideration to the choice of aid or service requested by the person who has a communication disability. The state or local government must honor the person’s choice, unless it can demonstrate that another equally effective means of communication is available, or that the use of the means chosen would result in a fundamental alteration or in an undue burden (see limitations below). If the choice expressed by the person with a disability would result in an undue burden or a fundamental alteration, the public entity still has an obligation to provide an alternative aid or service that provides effective communication if one is available.